12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182838485868788899091929394959697989910010110210310410510610710810911011111211311411511611711811912012112212312412512612712812913013113213313413513613713813914014114214314414514614714814915015115215315415515615715815916016116216316416516616716816917017117217317417517617717817918018118218318418518618718818919019119219319419519619719819920020120220320420520620720820921021121221321421521621721821922022122222322422522622722822923023123223323423523623723823924024124224324424524624724824925025125225325425525625725825926026126226326426526626726826927027127227327427527627727827928028128228328428528628728828929029129229329429529629729829930030130230330430530630730830931031131231331431531631731831932032132232332432532632732832933033133233333433533633733833934034134234334434534634734834935035135235335435535635735835936036136236336436536636736836937037137237337437537637737837938038138238338438538638738838939039139239339439539639739839940040140240340440540640740840941041141241341441541641741841942042142242342442542642742842943043143243343443543643743843944044144244344444544644744844945045145245345445545645745845946046146246346446546646746846947047147247347447547647747847948048148248348448548648748848949049149249349449549649749849950050150250350450550650750850951051151251351451551651751851952052152252352452552652752852953053153253353453553653753853954054154254354454554654754854955055155255355455555655755855956056156256356456556656756856957057157257357457557657757857958058158258358458558658758858959059159259359459559659759859960060160260360460560660760860961061161261361461561661761861962062162262362462562662762862963063163263363463563663763863964064164264364464564664764864965065165265365465565665765865966066166266366466566666766866967067167267367467567667767867968068168268368468568668768868969069169269369469569669769869970070170270370470570670770870971071171271371471571671771871972072172272372472572672772872973073173273373473573673773873974074174274374474574674774874975075175275375475575675775875976076176276376476576676776876977077177277377477577677777877978078178278378478578678778878979079179279379479579679779879980080180280380480580680780880981081181281381481581681781881982082182282382482582682782882983083183283383483583683783883984084184284384484584684784884985085185285385485585685785885986086186286386486586686786886987087187287387487587687787887988088188288388488588688788888989089189289389489589689789889990090190290390490590690790890991091191291391491591691791891992092192292392492592692792892993093193293393493593693793893994094194294394494594694794894995095195295395495595695795895996096196296396496596696796896997097197297397497597697797897998098198298398498598698798898999099199299399499599699799899910001001100210031004100510061007100810091010101110121013101410151016101710181019102010211022102310241025102610271028102910301031103210331034103510361037103810391040104110421043104410451046104710481049105010511052105310541055105610571058105910601061106210631064106510661067106810691070107110721073107410751076107710781079108010811082108310841085108610871088108910901091109210931094109510961097109810991100110111021103110411051106110711081109111011111112111311141115111611171118111911201121112211231124112511261127112811291130113111321133113411351136113711381139114011411142114311441145114611471148114911501151115211531154115511561157115811591160116111621163116411651166116711681169117011711172117311741175117611771178117911801181118211831184118511861187118811891190119111921193119411951196119711981199120012011202120312041205120612071208120912101211121212131214121512161217121812191220122112221223122412251226122712281229123012311232123312341235123612371238123912401241124212431244124512461247124812491250125112521253125412551256125712581259126012611262126312641265126612671268126912701271127212731274127512761277127812791280128112821283128412851286128712881289129012911292129312941295129612971298129913001301130213031304130513061307130813091310131113121313131413151316131713181319132013211322132313241325132613271328132913301331133213331334133513361337133813391340134113421343134413451346134713481349135013511352135313541355135613571358135913601361136213631364136513661367136813691370137113721373137413751376137713781379138013811382138313841385138613871388138913901391139213931394139513961397139813991400140114021403140414051406140714081409141014111412141314141415141614171418141914201421142214231424142514261427142814291430143114321433143414351436143714381439144014411442144314441445144614471448144914501451145214531454145514561457145814591460146114621463146414651466146714681469147014711472147314741475147614771478147914801481148214831484148514861487148814891490149114921493149414951496149714981499150015011502150315041505150615071508150915101511151215131514151515161517151815191520152115221523152415251526152715281529153015311532153315341535153615371538153915401541154215431544154515461547154815491550155115521553155415551556155715581559156015611562156315641565156615671568156915701571157215731574157515761577157815791580158115821583158415851586158715881589159015911592159315941595159615971598159916001601160216031604160516061607160816091610161116121613161416151616161716181619162016211622162316241625162616271628162916301631163216331634163516361637163816391640164116421643164416451646164716481649165016511652165316541655165616571658165916601661166216631664166516661667166816691670167116721673167416751676167716781679168016811682168316841685168616871688168916901691169216931694169516961697169816991700170117021703170417051706170717081709171017111712171317141715171617171718171917201721172217231724172517261727172817291730173117321733173417351736173717381739174017411742174317441745174617471748174917501751175217531754175517561757175817591760176117621763176417651766176717681769177017711772177317741775177617771778177917801781178217831784178517861787178817891790179117921793179417951796179717981799180018011802180318041805180618071808180918101811181218131814181518161817181818191820182118221823182418251826182718281829183018311832183318341835183618371838183918401841184218431844184518461847184818491850185118521853185418551856185718581859186018611862186318641865186618671868186918701871187218731874187518761877187818791880188118821883188418851886188718881889189018911892189318941895189618971898189919001901190219031904190519061907190819091910191119121913191419151916191719181919192019211922192319241925192619271928192919301931193219331934193519361937193819391940194119421943194419451946194719481949195019511952195319541955195619571958195919601961196219631964196519661967196819691970197119721973197419751976197719781979198019811982198319841985198619871988198919901991199219931994199519961997199819992000200120022003200420052006200720082009201020112012201320142015201620172018201920202021202220232024202520262027202820292030203120322033203420352036203720382039204020412042204320442045204620472048204920502051205220532054205520562057205820592060206120622063206420652066206720682069207020712072207320742075207620772078207920802081208220832084208520862087208820892090209120922093209420952096209720982099210021012102210321042105210621072108210921102111211221132114211521162117211821192120212121222123212421252126212721282129213021312132213321342135213621372138213921402141214221432144214521462147214821492150215121522153215421552156215721582159216021612162216321642165216621672168216921702171217221732174217521762177217821792180218121822183218421852186218721882189219021912192219321942195219621972198219922002201220222032204220522062207220822092210221122122213221422152216221722182219222022212222222322242225222622272228222922302231223222332234223522362237223822392240224122422243224422452246224722482249225022512252225322542255225622572258225922602261226222632264226522662267226822692270227122722273227422752276227722782279228022812282228322842285228622872288228922902291229222932294229522962297229822992300230123022303230423052306230723082309231023112312231323142315231623172318231923202321232223232324232523262327232823292330233123322333233423352336233723382339234023412342234323442345234623472348234923502351235223532354235523562357235823592360236123622363236423652366236723682369237023712372237323742375237623772378237923802381238223832384238523862387238823892390239123922393239423952396239723982399240024012402240324042405240624072408240924102411241224132414241524162417241824192420242124222423242424252426242724282429243024312432243324342435243624372438243924402441244224432444244524462447244824492450245124522453245424552456245724582459246024612462246324642465246624672468246924702471247224732474247524762477247824792480248124822483248424852486248724882489249024912492249324942495249624972498249925002501250225032504250525062507250825092510251125122513251425152516251725182519252025212522252325242525252625272528252925302531253225332534253525362537253825392540254125422543254425452546254725482549255025512552255325542555255625572558255925602561256225632564256525662567256825692570257125722573257425752576257725782579258025812582258325842585258625872588258925902591259225932594259525962597259825992600260126022603260426052606260726082609261026112612261326142615261626172618261926202621262226232624262526262627262826292630263126322633263426352636263726382639264026412642264326442645264626472648264926502651265226532654265526562657265826592660266126622663266426652666266726682669267026712672267326742675267626772678267926802681268226832684268526862687268826892690269126922693269426952696269726982699270027012702270327042705270627072708270927102711271227132714271527162717271827192720272127222723272427252726272727282729273027312732273327342735273627372738273927402741274227432744274527462747274827492750275127522753275427552756275727582759276027612762276327642765276627672768276927702771277227732774277527762777277827792780278127822783278427852786278727882789279027912792279327942795279627972798279928002801280228032804280528062807280828092810281128122813281428152816281728182819282028212822282328242825282628272828282928302831283228332834283528362837283828392840284128422843284428452846284728482849285028512852285328542855285628572858285928602861286228632864286528662867286828692870287128722873287428752876287728782879288028812882288328842885288628872888288928902891289228932894289528962897289828992900290129022903290429052906290729082909291029112912291329142915291629172918291929202921292229232924292529262927292829292930293129322933293429352936293729382939294029412942294329442945294629472948294929502951295229532954295529562957295829592960296129622963296429652966296729682969297029712972297329742975297629772978297929802981298229832984298529862987298829892990299129922993299429952996299729982999300030013002300330043005300630073008300930103011301230133014301530163017301830193020302130223023302430253026302730283029303030313032303330343035303630373038303930403041304230433044304530463047304830493050305130523053305430553056305730583059306030613062306330643065306630673068306930703071307230733074307530763077307830793080308130823083308430853086308730883089309030913092309330943095309630973098309931003101310231033104310531063107310831093110311131123113311431153116311731183119312031213122312331243125312631273128312931303131313231333134313531363137313831393140314131423143314431453146314731483149315031513152315331543155315631573158315931603161316231633164316531663167316831693170317131723173317431753176317731783179318031813182318331843185318631873188318931903191319231933194319531963197319831993200320132023203320432053206320732083209321032113212321332143215321632173218321932203221322232233224322532263227322832293230323132323233323432353236323732383239324032413242324332443245324632473248324932503251325232533254325532563257325832593260326132623263326432653266326732683269327032713272327332743275327632773278327932803281328232833284328532863287328832893290329132923293329432953296329732983299330033013302330333043305330633073308330933103311331233133314331533163317331833193320332133223323332433253326332733283329333033313332333333343335333633373338333933403341334233433344334533463347334833493350335133523353335433553356335733583359336033613362336333643365336633673368336933703371337233733374337533763377337833793380338133823383338433853386338733883389339033913392339333943395339633973398339934003401340234033404340534063407340834093410341134123413341434153416341734183419342034213422342334243425342634273428342934303431343234333434343534363437343834393440344134423443344434453446344734483449345034513452345334543455345634573458345934603461346234633464346534663467346834693470347134723473347434753476347734783479348034813482348334843485348634873488348934903491349234933494349534963497349834993500350135023503350435053506350735083509351035113512351335143515351635173518351935203521352235233524352535263527352835293530353135323533353435353536353735383539354035413542354335443545354635473548354935503551355235533554355535563557355835593560356135623563356435653566356735683569357035713572357335743575357635773578357935803581358235833584358535863587358835893590359135923593359435953596359735983599360036013602360336043605360636073608360936103611361236133614361536163617361836193620362136223623362436253626362736283629363036313632363336343635363636373638363936403641364236433644364536463647364836493650365136523653365436553656365736583659366036613662366336643665366636673668366936703671367236733674367536763677367836793680368136823683368436853686368736883689369036913692369336943695369636973698369937003701370237033704370537063707370837093710371137123713371437153716371737183719372037213722372337243725372637273728372937303731373237333734373537363737373837393740374137423743374437453746374737483749375037513752375337543755375637573758375937603761376237633764376537663767376837693770377137723773377437753776377737783779378037813782378337843785378637873788378937903791379237933794379537963797379837993800380138023803380438053806380738083809381038113812381338143815381638173818381938203821382238233824382538263827382838293830383138323833383438353836383738383839384038413842384338443845384638473848384938503851385238533854385538563857385838593860386138623863386438653866386738683869387038713872387338743875387638773878387938803881388238833884388538863887388838893890389138923893389438953896389738983899390039013902390339043905390639073908390939103911391239133914391539163917391839193920392139223923392439253926392739283929393039313932393339343935393639373938393939403941394239433944394539463947394839493950395139523953395439553956395739583959396039613962396339643965396639673968396939703971397239733974397539763977397839793980398139823983398439853986398739883989399039913992399339943995399639973998399940004001400240034004400540064007400840094010401140124013401440154016401740184019402040214022402340244025402640274028402940304031403240334034403540364037403840394040404140424043404440454046404740484049405040514052405340544055405640574058405940604061406240634064406540664067406840694070407140724073407440754076407740784079408040814082408340844085408640874088408940904091409240934094409540964097409840994100410141024103410441054106410741084109411041114112411341144115411641174118411941204121412241234124412541264127412841294130413141324133413441354136413741384139414041414142414341444145414641474148414941504151415241534154415541564157415841594160416141624163416441654166416741684169417041714172417341744175417641774178417941804181418241834184418541864187418841894190419141924193419441954196419741984199420042014202420342044205420642074208420942104211421242134214421542164217421842194220422142224223422442254226422742284229423042314232423342344235423642374238423942404241424242434244424542464247424842494250425142524253425442554256425742584259426042614262426342644265426642674268426942704271427242734274427542764277427842794280428142824283428442854286428742884289429042914292429342944295429642974298429943004301430243034304430543064307430843094310431143124313431443154316431743184319432043214322432343244325432643274328432943304331433243334334433543364337433843394340434143424343434443454346434743484349435043514352435343544355435643574358435943604361436243634364436543664367436843694370437143724373437443754376437743784379438043814382438343844385438643874388438943904391439243934394439543964397439843994400440144024403440444054406440744084409441044114412441344144415441644174418441944204421442244234424442544264427442844294430443144324433443444354436443744384439444044414442444344444445444644474448444944504451445244534454445544564457445844594460446144624463446444654466446744684469447044714472447344744475447644774478447944804481448244834484448544864487448844894490449144924493449444954496449744984499450045014502450345044505450645074508450945104511451245134514451545164517451845194520452145224523452445254526452745284529453045314532453345344535453645374538453945404541454245434544454545464547454845494550455145524553455445554556455745584559456045614562456345644565456645674568456945704571457245734574457545764577457845794580458145824583458445854586458745884589459045914592459345944595459645974598459946004601460246034604460546064607460846094610461146124613461446154616461746184619462046214622462346244625462646274628462946304631463246334634463546364637463846394640464146424643464446454646464746484649465046514652465346544655465646574658465946604661466246634664466546664667466846694670467146724673467446754676467746784679468046814682468346844685468646874688468946904691469246934694469546964697469846994700470147024703470447054706470747084709471047114712471347144715471647174718471947204721472247234724472547264727472847294730473147324733473447354736473747384739474047414742474347444745474647474748474947504751475247534754475547564757475847594760476147624763476447654766476747684769477047714772477347744775477647774778477947804781478247834784478547864787478847894790479147924793479447954796479747984799480048014802480348044805480648074808480948104811481248134814481548164817481848194820482148224823482448254826482748284829483048314832483348344835483648374838483948404841484248434844484548464847484848494850485148524853485448554856485748584859486048614862486348644865486648674868486948704871487248734874487548764877487848794880488148824883488448854886488748884889489048914892489348944895489648974898489949004901490249034904490549064907 |
- // SPDX-License-Identifier: GPL-2.0
- /*
- * fs/f2fs/super.c
- *
- * Copyright (c) 2012 Samsung Electronics Co., Ltd.
- * http://www.samsung.com/
- */
- #include <linux/module.h>
- #include <linux/init.h>
- #include <linux/fs.h>
- #include <linux/fs_context.h>
- #include <linux/sched/mm.h>
- #include <linux/statfs.h>
- #include <linux/buffer_head.h>
- #include <linux/kthread.h>
- #include <linux/parser.h>
- #include <linux/mount.h>
- #include <linux/seq_file.h>
- #include <linux/proc_fs.h>
- #include <linux/random.h>
- #include <linux/exportfs.h>
- #include <linux/blkdev.h>
- #include <linux/quotaops.h>
- #include <linux/f2fs_fs.h>
- #include <linux/sysfs.h>
- #include <linux/quota.h>
- #include <linux/unicode.h>
- #include <linux/part_stat.h>
- #include <linux/zstd.h>
- #include <linux/lz4.h>
- #include <linux/cleancache.h>
- #include "f2fs.h"
- #include "node.h"
- #include "segment.h"
- #include "xattr.h"
- #include "gc.h"
- #include "iostat.h"
- #define CREATE_TRACE_POINTS
- #include <trace/events/f2fs.h>
- static struct kmem_cache *f2fs_inode_cachep;
- #ifdef CONFIG_F2FS_FAULT_INJECTION
- const char *f2fs_fault_name[FAULT_MAX] = {
- [FAULT_KMALLOC] = "kmalloc",
- [FAULT_KVMALLOC] = "kvmalloc",
- [FAULT_PAGE_ALLOC] = "page alloc",
- [FAULT_PAGE_GET] = "page get",
- [FAULT_ALLOC_NID] = "alloc nid",
- [FAULT_ORPHAN] = "orphan",
- [FAULT_BLOCK] = "no more block",
- [FAULT_DIR_DEPTH] = "too big dir depth",
- [FAULT_EVICT_INODE] = "evict_inode fail",
- [FAULT_TRUNCATE] = "truncate fail",
- [FAULT_READ_IO] = "read IO error",
- [FAULT_CHECKPOINT] = "checkpoint error",
- [FAULT_DISCARD] = "discard error",
- [FAULT_WRITE_IO] = "write IO error",
- [FAULT_SLAB_ALLOC] = "slab alloc",
- [FAULT_DQUOT_INIT] = "dquot initialize",
- [FAULT_LOCK_OP] = "lock_op",
- [FAULT_BLKADDR_VALIDITY] = "invalid blkaddr",
- [FAULT_BLKADDR_CONSISTENCE] = "inconsistent blkaddr",
- };
- void f2fs_build_fault_attr(struct f2fs_sb_info *sbi, unsigned int rate,
- unsigned int type)
- {
- struct f2fs_fault_info *ffi = &F2FS_OPTION(sbi).fault_info;
- if (rate) {
- atomic_set(&ffi->inject_ops, 0);
- ffi->inject_rate = rate;
- }
- if (type)
- ffi->inject_type = type;
- if (!rate && !type)
- memset(ffi, 0, sizeof(struct f2fs_fault_info));
- }
- #endif
- /* f2fs-wide shrinker description */
- static struct shrinker f2fs_shrinker_info = {
- .scan_objects = f2fs_shrink_scan,
- .count_objects = f2fs_shrink_count,
- .seeks = DEFAULT_SEEKS,
- };
- enum {
- Opt_gc_background,
- Opt_disable_roll_forward,
- Opt_norecovery,
- Opt_discard,
- Opt_nodiscard,
- Opt_noheap,
- Opt_heap,
- Opt_user_xattr,
- Opt_nouser_xattr,
- Opt_acl,
- Opt_noacl,
- Opt_active_logs,
- Opt_disable_ext_identify,
- Opt_inline_xattr,
- Opt_noinline_xattr,
- Opt_inline_xattr_size,
- Opt_inline_data,
- Opt_inline_dentry,
- Opt_noinline_dentry,
- Opt_flush_merge,
- Opt_noflush_merge,
- Opt_barrier,
- Opt_nobarrier,
- Opt_fastboot,
- Opt_extent_cache,
- Opt_noextent_cache,
- Opt_noinline_data,
- Opt_data_flush,
- Opt_reserve_root,
- Opt_resgid,
- Opt_resuid,
- Opt_mode,
- Opt_io_size_bits,
- Opt_fault_injection,
- Opt_fault_type,
- Opt_lazytime,
- Opt_nolazytime,
- Opt_quota,
- Opt_noquota,
- Opt_usrquota,
- Opt_grpquota,
- Opt_prjquota,
- Opt_usrjquota,
- Opt_grpjquota,
- Opt_prjjquota,
- Opt_offusrjquota,
- Opt_offgrpjquota,
- Opt_offprjjquota,
- Opt_jqfmt_vfsold,
- Opt_jqfmt_vfsv0,
- Opt_jqfmt_vfsv1,
- Opt_alloc,
- Opt_fsync,
- Opt_test_dummy_encryption,
- Opt_inlinecrypt,
- Opt_checkpoint_disable,
- Opt_checkpoint_disable_cap,
- Opt_checkpoint_disable_cap_perc,
- Opt_checkpoint_enable,
- Opt_checkpoint_merge,
- Opt_nocheckpoint_merge,
- Opt_compress_algorithm,
- Opt_compress_log_size,
- Opt_compress_extension,
- Opt_nocompress_extension,
- Opt_compress_chksum,
- Opt_compress_mode,
- Opt_compress_cache,
- Opt_atgc,
- Opt_gc_merge,
- Opt_nogc_merge,
- Opt_discard_unit,
- Opt_memory_mode,
- Opt_age_extent_cache,
- Opt_err,
- };
- static match_table_t f2fs_tokens = {
- {Opt_gc_background, "background_gc=%s"},
- {Opt_disable_roll_forward, "disable_roll_forward"},
- {Opt_norecovery, "norecovery"},
- {Opt_discard, "discard"},
- {Opt_nodiscard, "nodiscard"},
- {Opt_noheap, "no_heap"},
- {Opt_heap, "heap"},
- {Opt_user_xattr, "user_xattr"},
- {Opt_nouser_xattr, "nouser_xattr"},
- {Opt_acl, "acl"},
- {Opt_noacl, "noacl"},
- {Opt_active_logs, "active_logs=%u"},
- {Opt_disable_ext_identify, "disable_ext_identify"},
- {Opt_inline_xattr, "inline_xattr"},
- {Opt_noinline_xattr, "noinline_xattr"},
- {Opt_inline_xattr_size, "inline_xattr_size=%u"},
- {Opt_inline_data, "inline_data"},
- {Opt_inline_dentry, "inline_dentry"},
- {Opt_noinline_dentry, "noinline_dentry"},
- {Opt_flush_merge, "flush_merge"},
- {Opt_noflush_merge, "noflush_merge"},
- {Opt_barrier, "barrier"},
- {Opt_nobarrier, "nobarrier"},
- {Opt_fastboot, "fastboot"},
- {Opt_extent_cache, "extent_cache"},
- {Opt_noextent_cache, "noextent_cache"},
- {Opt_noinline_data, "noinline_data"},
- {Opt_data_flush, "data_flush"},
- {Opt_reserve_root, "reserve_root=%u"},
- {Opt_resgid, "resgid=%u"},
- {Opt_resuid, "resuid=%u"},
- {Opt_mode, "mode=%s"},
- {Opt_io_size_bits, "io_bits=%u"},
- {Opt_fault_injection, "fault_injection=%u"},
- {Opt_fault_type, "fault_type=%u"},
- {Opt_lazytime, "lazytime"},
- {Opt_nolazytime, "nolazytime"},
- {Opt_quota, "quota"},
- {Opt_noquota, "noquota"},
- {Opt_usrquota, "usrquota"},
- {Opt_grpquota, "grpquota"},
- {Opt_prjquota, "prjquota"},
- {Opt_usrjquota, "usrjquota=%s"},
- {Opt_grpjquota, "grpjquota=%s"},
- {Opt_prjjquota, "prjjquota=%s"},
- {Opt_offusrjquota, "usrjquota="},
- {Opt_offgrpjquota, "grpjquota="},
- {Opt_offprjjquota, "prjjquota="},
- {Opt_jqfmt_vfsold, "jqfmt=vfsold"},
- {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
- {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
- {Opt_alloc, "alloc_mode=%s"},
- {Opt_fsync, "fsync_mode=%s"},
- {Opt_test_dummy_encryption, "test_dummy_encryption=%s"},
- {Opt_test_dummy_encryption, "test_dummy_encryption"},
- {Opt_inlinecrypt, "inlinecrypt"},
- {Opt_checkpoint_disable, "checkpoint=disable"},
- {Opt_checkpoint_disable_cap, "checkpoint=disable:%u"},
- {Opt_checkpoint_disable_cap_perc, "checkpoint=disable:%u%%"},
- {Opt_checkpoint_enable, "checkpoint=enable"},
- {Opt_checkpoint_merge, "checkpoint_merge"},
- {Opt_nocheckpoint_merge, "nocheckpoint_merge"},
- {Opt_compress_algorithm, "compress_algorithm=%s"},
- {Opt_compress_log_size, "compress_log_size=%u"},
- {Opt_compress_extension, "compress_extension=%s"},
- {Opt_nocompress_extension, "nocompress_extension=%s"},
- {Opt_compress_chksum, "compress_chksum"},
- {Opt_compress_mode, "compress_mode=%s"},
- {Opt_compress_cache, "compress_cache"},
- {Opt_atgc, "atgc"},
- {Opt_gc_merge, "gc_merge"},
- {Opt_nogc_merge, "nogc_merge"},
- {Opt_discard_unit, "discard_unit=%s"},
- {Opt_memory_mode, "memory=%s"},
- {Opt_age_extent_cache, "age_extent_cache"},
- {Opt_err, NULL},
- };
- void f2fs_printk(struct f2fs_sb_info *sbi, const char *fmt, ...)
- {
- struct va_format vaf;
- va_list args;
- int level;
- va_start(args, fmt);
- level = printk_get_level(fmt);
- vaf.fmt = printk_skip_level(fmt);
- vaf.va = &args;
- printk("%c%cF2FS-fs (%s): %pV\n",
- KERN_SOH_ASCII, level, sbi->sb->s_id, &vaf);
- va_end(args);
- }
- #if IS_ENABLED(CONFIG_UNICODE)
- static const struct f2fs_sb_encodings {
- __u16 magic;
- char *name;
- unsigned int version;
- } f2fs_sb_encoding_map[] = {
- {F2FS_ENC_UTF8_12_1, "utf8", UNICODE_AGE(12, 1, 0)},
- };
- static const struct f2fs_sb_encodings *
- f2fs_sb_read_encoding(const struct f2fs_super_block *sb)
- {
- __u16 magic = le16_to_cpu(sb->s_encoding);
- int i;
- for (i = 0; i < ARRAY_SIZE(f2fs_sb_encoding_map); i++)
- if (magic == f2fs_sb_encoding_map[i].magic)
- return &f2fs_sb_encoding_map[i];
- return NULL;
- }
- struct kmem_cache *f2fs_cf_name_slab;
- static int __init f2fs_create_casefold_cache(void)
- {
- f2fs_cf_name_slab = f2fs_kmem_cache_create("f2fs_casefolded_name",
- F2FS_NAME_LEN);
- return f2fs_cf_name_slab ? 0 : -ENOMEM;
- }
- static void f2fs_destroy_casefold_cache(void)
- {
- kmem_cache_destroy(f2fs_cf_name_slab);
- }
- #else
- static int __init f2fs_create_casefold_cache(void) { return 0; }
- static void f2fs_destroy_casefold_cache(void) { }
- #endif
- static inline void limit_reserve_root(struct f2fs_sb_info *sbi)
- {
- block_t limit = min((sbi->user_block_count >> 3),
- sbi->user_block_count - sbi->reserved_blocks);
- /* limit is 12.5% */
- if (test_opt(sbi, RESERVE_ROOT) &&
- F2FS_OPTION(sbi).root_reserved_blocks > limit) {
- F2FS_OPTION(sbi).root_reserved_blocks = limit;
- f2fs_info(sbi, "Reduce reserved blocks for root = %u",
- F2FS_OPTION(sbi).root_reserved_blocks);
- }
- if (!test_opt(sbi, RESERVE_ROOT) &&
- (!uid_eq(F2FS_OPTION(sbi).s_resuid,
- make_kuid(&init_user_ns, F2FS_DEF_RESUID)) ||
- !gid_eq(F2FS_OPTION(sbi).s_resgid,
- make_kgid(&init_user_ns, F2FS_DEF_RESGID))))
- f2fs_info(sbi, "Ignore s_resuid=%u, s_resgid=%u w/o reserve_root",
- from_kuid_munged(&init_user_ns,
- F2FS_OPTION(sbi).s_resuid),
- from_kgid_munged(&init_user_ns,
- F2FS_OPTION(sbi).s_resgid));
- }
- static inline int adjust_reserved_segment(struct f2fs_sb_info *sbi)
- {
- unsigned int sec_blks = sbi->blocks_per_seg * sbi->segs_per_sec;
- unsigned int avg_vblocks;
- unsigned int wanted_reserved_segments;
- block_t avail_user_block_count;
- if (!F2FS_IO_ALIGNED(sbi))
- return 0;
- /* average valid block count in section in worst case */
- avg_vblocks = sec_blks / F2FS_IO_SIZE(sbi);
- /*
- * we need enough free space when migrating one section in worst case
- */
- wanted_reserved_segments = (F2FS_IO_SIZE(sbi) / avg_vblocks) *
- reserved_segments(sbi);
- wanted_reserved_segments -= reserved_segments(sbi);
- avail_user_block_count = sbi->user_block_count -
- sbi->current_reserved_blocks -
- F2FS_OPTION(sbi).root_reserved_blocks;
- if (wanted_reserved_segments * sbi->blocks_per_seg >
- avail_user_block_count) {
- f2fs_err(sbi, "IO align feature can't grab additional reserved segment: %u, available segments: %u",
- wanted_reserved_segments,
- avail_user_block_count >> sbi->log_blocks_per_seg);
- return -ENOSPC;
- }
- SM_I(sbi)->additional_reserved_segments = wanted_reserved_segments;
- f2fs_info(sbi, "IO align feature needs additional reserved segment: %u",
- wanted_reserved_segments);
- return 0;
- }
- static inline void adjust_unusable_cap_perc(struct f2fs_sb_info *sbi)
- {
- if (!F2FS_OPTION(sbi).unusable_cap_perc)
- return;
- if (F2FS_OPTION(sbi).unusable_cap_perc == 100)
- F2FS_OPTION(sbi).unusable_cap = sbi->user_block_count;
- else
- F2FS_OPTION(sbi).unusable_cap = (sbi->user_block_count / 100) *
- F2FS_OPTION(sbi).unusable_cap_perc;
- f2fs_info(sbi, "Adjust unusable cap for checkpoint=disable = %u / %u%%",
- F2FS_OPTION(sbi).unusable_cap,
- F2FS_OPTION(sbi).unusable_cap_perc);
- }
- static void init_once(void *foo)
- {
- struct f2fs_inode_info *fi = (struct f2fs_inode_info *) foo;
- inode_init_once(&fi->vfs_inode);
- }
- #ifdef CONFIG_QUOTA
- static const char * const quotatypes[] = INITQFNAMES;
- #define QTYPE2NAME(t) (quotatypes[t])
- static int f2fs_set_qf_name(struct super_block *sb, int qtype,
- substring_t *args)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- char *qname;
- int ret = -EINVAL;
- if (sb_any_quota_loaded(sb) && !F2FS_OPTION(sbi).s_qf_names[qtype]) {
- f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
- return -EINVAL;
- }
- if (f2fs_sb_has_quota_ino(sbi)) {
- f2fs_info(sbi, "QUOTA feature is enabled, so ignore qf_name");
- return 0;
- }
- qname = match_strdup(args);
- if (!qname) {
- f2fs_err(sbi, "Not enough memory for storing quotafile name");
- return -ENOMEM;
- }
- if (F2FS_OPTION(sbi).s_qf_names[qtype]) {
- if (strcmp(F2FS_OPTION(sbi).s_qf_names[qtype], qname) == 0)
- ret = 0;
- else
- f2fs_err(sbi, "%s quota file already specified",
- QTYPE2NAME(qtype));
- goto errout;
- }
- if (strchr(qname, '/')) {
- f2fs_err(sbi, "quotafile must be on filesystem root");
- goto errout;
- }
- F2FS_OPTION(sbi).s_qf_names[qtype] = qname;
- set_opt(sbi, QUOTA);
- return 0;
- errout:
- kfree(qname);
- return ret;
- }
- static int f2fs_clear_qf_name(struct super_block *sb, int qtype)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- if (sb_any_quota_loaded(sb) && F2FS_OPTION(sbi).s_qf_names[qtype]) {
- f2fs_err(sbi, "Cannot change journaled quota options when quota turned on");
- return -EINVAL;
- }
- kfree(F2FS_OPTION(sbi).s_qf_names[qtype]);
- F2FS_OPTION(sbi).s_qf_names[qtype] = NULL;
- return 0;
- }
- static int f2fs_check_quota_options(struct f2fs_sb_info *sbi)
- {
- /*
- * We do the test below only for project quotas. 'usrquota' and
- * 'grpquota' mount options are allowed even without quota feature
- * to support legacy quotas in quota files.
- */
- if (test_opt(sbi, PRJQUOTA) && !f2fs_sb_has_project_quota(sbi)) {
- f2fs_err(sbi, "Project quota feature not enabled. Cannot enable project quota enforcement.");
- return -1;
- }
- if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA] ||
- F2FS_OPTION(sbi).s_qf_names[GRPQUOTA] ||
- F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]) {
- if (test_opt(sbi, USRQUOTA) &&
- F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
- clear_opt(sbi, USRQUOTA);
- if (test_opt(sbi, GRPQUOTA) &&
- F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
- clear_opt(sbi, GRPQUOTA);
- if (test_opt(sbi, PRJQUOTA) &&
- F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
- clear_opt(sbi, PRJQUOTA);
- if (test_opt(sbi, GRPQUOTA) || test_opt(sbi, USRQUOTA) ||
- test_opt(sbi, PRJQUOTA)) {
- f2fs_err(sbi, "old and new quota format mixing");
- return -1;
- }
- if (!F2FS_OPTION(sbi).s_jquota_fmt) {
- f2fs_err(sbi, "journaled quota format not specified");
- return -1;
- }
- }
- if (f2fs_sb_has_quota_ino(sbi) && F2FS_OPTION(sbi).s_jquota_fmt) {
- f2fs_info(sbi, "QUOTA feature is enabled, so ignore jquota_fmt");
- F2FS_OPTION(sbi).s_jquota_fmt = 0;
- }
- return 0;
- }
- #endif
- static int f2fs_set_test_dummy_encryption(struct super_block *sb,
- const char *opt,
- const substring_t *arg,
- bool is_remount)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- struct fs_parameter param = {
- .type = fs_value_is_string,
- .string = arg->from ? arg->from : "",
- };
- struct fscrypt_dummy_policy *policy =
- &F2FS_OPTION(sbi).dummy_enc_policy;
- int err;
- if (!IS_ENABLED(CONFIG_FS_ENCRYPTION)) {
- f2fs_warn(sbi, "test_dummy_encryption option not supported");
- return -EINVAL;
- }
- if (!f2fs_sb_has_encrypt(sbi)) {
- f2fs_err(sbi, "Encrypt feature is off");
- return -EINVAL;
- }
- /*
- * This mount option is just for testing, and it's not worthwhile to
- * implement the extra complexity (e.g. RCU protection) that would be
- * needed to allow it to be set or changed during remount. We do allow
- * it to be specified during remount, but only if there is no change.
- */
- if (is_remount && !fscrypt_is_dummy_policy_set(policy)) {
- f2fs_warn(sbi, "Can't set test_dummy_encryption on remount");
- return -EINVAL;
- }
- err = fscrypt_parse_test_dummy_encryption(¶m, policy);
- if (err) {
- if (err == -EEXIST)
- f2fs_warn(sbi,
- "Can't change test_dummy_encryption on remount");
- else if (err == -EINVAL)
- f2fs_warn(sbi, "Value of option \"%s\" is unrecognized",
- opt);
- else
- f2fs_warn(sbi, "Error processing option \"%s\" [%d]",
- opt, err);
- return -EINVAL;
- }
- f2fs_warn(sbi, "Test dummy encryption mode enabled");
- return 0;
- }
- #ifdef CONFIG_F2FS_FS_COMPRESSION
- static bool is_compress_extension_exist(struct f2fs_sb_info *sbi,
- const char *new_ext, bool is_ext)
- {
- unsigned char (*ext)[F2FS_EXTENSION_LEN];
- int ext_cnt;
- int i;
- if (is_ext) {
- ext = F2FS_OPTION(sbi).extensions;
- ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
- } else {
- ext = F2FS_OPTION(sbi).noextensions;
- ext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
- }
- for (i = 0; i < ext_cnt; i++) {
- if (!strcasecmp(new_ext, ext[i]))
- return true;
- }
- return false;
- }
- /*
- * 1. The same extension name cannot not appear in both compress and non-compress extension
- * at the same time.
- * 2. If the compress extension specifies all files, the types specified by the non-compress
- * extension will be treated as special cases and will not be compressed.
- * 3. Don't allow the non-compress extension specifies all files.
- */
- static int f2fs_test_compress_extension(struct f2fs_sb_info *sbi)
- {
- unsigned char (*ext)[F2FS_EXTENSION_LEN];
- unsigned char (*noext)[F2FS_EXTENSION_LEN];
- int ext_cnt, noext_cnt, index = 0, no_index = 0;
- ext = F2FS_OPTION(sbi).extensions;
- ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
- noext = F2FS_OPTION(sbi).noextensions;
- noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
- if (!noext_cnt)
- return 0;
- for (no_index = 0; no_index < noext_cnt; no_index++) {
- if (!strcasecmp("*", noext[no_index])) {
- f2fs_info(sbi, "Don't allow the nocompress extension specifies all files");
- return -EINVAL;
- }
- for (index = 0; index < ext_cnt; index++) {
- if (!strcasecmp(ext[index], noext[no_index])) {
- f2fs_info(sbi, "Don't allow the same extension %s appear in both compress and nocompress extension",
- ext[index]);
- return -EINVAL;
- }
- }
- }
- return 0;
- }
- #ifdef CONFIG_F2FS_FS_LZ4
- static int f2fs_set_lz4hc_level(struct f2fs_sb_info *sbi, const char *str)
- {
- #ifdef CONFIG_F2FS_FS_LZ4HC
- unsigned int level;
- #endif
- if (strlen(str) == 3) {
- F2FS_OPTION(sbi).compress_level = 0;
- return 0;
- }
- #ifdef CONFIG_F2FS_FS_LZ4HC
- str += 3;
- if (str[0] != ':') {
- f2fs_info(sbi, "wrong format, e.g. <alg_name>:<compr_level>");
- return -EINVAL;
- }
- if (kstrtouint(str + 1, 10, &level))
- return -EINVAL;
- if (level < LZ4HC_MIN_CLEVEL || level > LZ4HC_MAX_CLEVEL) {
- f2fs_info(sbi, "invalid lz4hc compress level: %d", level);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).compress_level = level;
- return 0;
- #else
- f2fs_info(sbi, "kernel doesn't support lz4hc compression");
- return -EINVAL;
- #endif
- }
- #endif
- #ifdef CONFIG_F2FS_FS_ZSTD
- static int f2fs_set_zstd_level(struct f2fs_sb_info *sbi, const char *str)
- {
- unsigned int level;
- int len = 4;
- if (strlen(str) == len) {
- F2FS_OPTION(sbi).compress_level = 0;
- return 0;
- }
- str += len;
- if (str[0] != ':') {
- f2fs_info(sbi, "wrong format, e.g. <alg_name>:<compr_level>");
- return -EINVAL;
- }
- if (kstrtouint(str + 1, 10, &level))
- return -EINVAL;
- if (!level || level > zstd_max_clevel()) {
- f2fs_info(sbi, "invalid zstd compress level: %d", level);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).compress_level = level;
- return 0;
- }
- #endif
- #endif
- static int parse_options(struct super_block *sb, char *options, bool is_remount)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- substring_t args[MAX_OPT_ARGS];
- #ifdef CONFIG_F2FS_FS_COMPRESSION
- unsigned char (*ext)[F2FS_EXTENSION_LEN];
- unsigned char (*noext)[F2FS_EXTENSION_LEN];
- int ext_cnt, noext_cnt;
- #endif
- char *p, *name;
- int arg = 0;
- kuid_t uid;
- kgid_t gid;
- int ret;
- if (!options)
- goto default_check;
- while ((p = strsep(&options, ",")) != NULL) {
- int token;
- if (!*p)
- continue;
- /*
- * Initialize args struct so we know whether arg was
- * found; some options take optional arguments.
- */
- args[0].to = args[0].from = NULL;
- token = match_token(p, f2fs_tokens, args);
- switch (token) {
- case Opt_gc_background:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "on")) {
- F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
- } else if (!strcmp(name, "off")) {
- F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_OFF;
- } else if (!strcmp(name, "sync")) {
- F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_SYNC;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_disable_roll_forward:
- set_opt(sbi, DISABLE_ROLL_FORWARD);
- break;
- case Opt_norecovery:
- /* this option mounts f2fs with ro */
- set_opt(sbi, NORECOVERY);
- if (!f2fs_readonly(sb))
- return -EINVAL;
- break;
- case Opt_discard:
- if (!f2fs_hw_support_discard(sbi)) {
- f2fs_warn(sbi, "device does not support discard");
- break;
- }
- set_opt(sbi, DISCARD);
- break;
- case Opt_nodiscard:
- if (f2fs_hw_should_discard(sbi)) {
- f2fs_warn(sbi, "discard is required for zoned block devices");
- return -EINVAL;
- }
- clear_opt(sbi, DISCARD);
- break;
- case Opt_noheap:
- set_opt(sbi, NOHEAP);
- break;
- case Opt_heap:
- clear_opt(sbi, NOHEAP);
- break;
- #ifdef CONFIG_F2FS_FS_XATTR
- case Opt_user_xattr:
- set_opt(sbi, XATTR_USER);
- break;
- case Opt_nouser_xattr:
- clear_opt(sbi, XATTR_USER);
- break;
- case Opt_inline_xattr:
- set_opt(sbi, INLINE_XATTR);
- break;
- case Opt_noinline_xattr:
- clear_opt(sbi, INLINE_XATTR);
- break;
- case Opt_inline_xattr_size:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- set_opt(sbi, INLINE_XATTR_SIZE);
- F2FS_OPTION(sbi).inline_xattr_size = arg;
- break;
- #else
- case Opt_user_xattr:
- f2fs_info(sbi, "user_xattr options not supported");
- break;
- case Opt_nouser_xattr:
- f2fs_info(sbi, "nouser_xattr options not supported");
- break;
- case Opt_inline_xattr:
- f2fs_info(sbi, "inline_xattr options not supported");
- break;
- case Opt_noinline_xattr:
- f2fs_info(sbi, "noinline_xattr options not supported");
- break;
- #endif
- #ifdef CONFIG_F2FS_FS_POSIX_ACL
- case Opt_acl:
- set_opt(sbi, POSIX_ACL);
- break;
- case Opt_noacl:
- clear_opt(sbi, POSIX_ACL);
- break;
- #else
- case Opt_acl:
- f2fs_info(sbi, "acl options not supported");
- break;
- case Opt_noacl:
- f2fs_info(sbi, "noacl options not supported");
- break;
- #endif
- case Opt_active_logs:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- if (arg != 2 && arg != 4 &&
- arg != NR_CURSEG_PERSIST_TYPE)
- return -EINVAL;
- F2FS_OPTION(sbi).active_logs = arg;
- break;
- case Opt_disable_ext_identify:
- set_opt(sbi, DISABLE_EXT_IDENTIFY);
- break;
- case Opt_inline_data:
- set_opt(sbi, INLINE_DATA);
- break;
- case Opt_inline_dentry:
- set_opt(sbi, INLINE_DENTRY);
- break;
- case Opt_noinline_dentry:
- clear_opt(sbi, INLINE_DENTRY);
- break;
- case Opt_flush_merge:
- set_opt(sbi, FLUSH_MERGE);
- break;
- case Opt_noflush_merge:
- clear_opt(sbi, FLUSH_MERGE);
- break;
- case Opt_nobarrier:
- set_opt(sbi, NOBARRIER);
- break;
- case Opt_barrier:
- clear_opt(sbi, NOBARRIER);
- break;
- case Opt_fastboot:
- set_opt(sbi, FASTBOOT);
- break;
- case Opt_extent_cache:
- set_opt(sbi, READ_EXTENT_CACHE);
- break;
- case Opt_noextent_cache:
- clear_opt(sbi, READ_EXTENT_CACHE);
- break;
- case Opt_noinline_data:
- clear_opt(sbi, INLINE_DATA);
- break;
- case Opt_data_flush:
- set_opt(sbi, DATA_FLUSH);
- break;
- case Opt_reserve_root:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- if (test_opt(sbi, RESERVE_ROOT)) {
- f2fs_info(sbi, "Preserve previous reserve_root=%u",
- F2FS_OPTION(sbi).root_reserved_blocks);
- } else {
- F2FS_OPTION(sbi).root_reserved_blocks = arg;
- set_opt(sbi, RESERVE_ROOT);
- }
- break;
- case Opt_resuid:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- uid = make_kuid(current_user_ns(), arg);
- if (!uid_valid(uid)) {
- f2fs_err(sbi, "Invalid uid value %d", arg);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).s_resuid = uid;
- break;
- case Opt_resgid:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- gid = make_kgid(current_user_ns(), arg);
- if (!gid_valid(gid)) {
- f2fs_err(sbi, "Invalid gid value %d", arg);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).s_resgid = gid;
- break;
- case Opt_mode:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "adaptive")) {
- F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
- } else if (!strcmp(name, "lfs")) {
- F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
- } else if (!strcmp(name, "fragment:segment")) {
- F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_SEG;
- } else if (!strcmp(name, "fragment:block")) {
- F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_BLK;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_io_size_bits:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- if (arg <= 0 || arg > __ilog2_u32(BIO_MAX_VECS)) {
- f2fs_warn(sbi, "Not support %ld, larger than %d",
- BIT(arg), BIO_MAX_VECS);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).write_io_size_bits = arg;
- break;
- #ifdef CONFIG_F2FS_FAULT_INJECTION
- case Opt_fault_injection:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- f2fs_build_fault_attr(sbi, arg, F2FS_ALL_FAULT_TYPE);
- set_opt(sbi, FAULT_INJECTION);
- break;
- case Opt_fault_type:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- f2fs_build_fault_attr(sbi, 0, arg);
- set_opt(sbi, FAULT_INJECTION);
- break;
- #else
- case Opt_fault_injection:
- f2fs_info(sbi, "fault_injection options not supported");
- break;
- case Opt_fault_type:
- f2fs_info(sbi, "fault_type options not supported");
- break;
- #endif
- case Opt_lazytime:
- sb->s_flags |= SB_LAZYTIME;
- break;
- case Opt_nolazytime:
- sb->s_flags &= ~SB_LAZYTIME;
- break;
- #ifdef CONFIG_QUOTA
- case Opt_quota:
- case Opt_usrquota:
- set_opt(sbi, USRQUOTA);
- break;
- case Opt_grpquota:
- set_opt(sbi, GRPQUOTA);
- break;
- case Opt_prjquota:
- set_opt(sbi, PRJQUOTA);
- break;
- case Opt_usrjquota:
- ret = f2fs_set_qf_name(sb, USRQUOTA, &args[0]);
- if (ret)
- return ret;
- break;
- case Opt_grpjquota:
- ret = f2fs_set_qf_name(sb, GRPQUOTA, &args[0]);
- if (ret)
- return ret;
- break;
- case Opt_prjjquota:
- ret = f2fs_set_qf_name(sb, PRJQUOTA, &args[0]);
- if (ret)
- return ret;
- break;
- case Opt_offusrjquota:
- ret = f2fs_clear_qf_name(sb, USRQUOTA);
- if (ret)
- return ret;
- break;
- case Opt_offgrpjquota:
- ret = f2fs_clear_qf_name(sb, GRPQUOTA);
- if (ret)
- return ret;
- break;
- case Opt_offprjjquota:
- ret = f2fs_clear_qf_name(sb, PRJQUOTA);
- if (ret)
- return ret;
- break;
- case Opt_jqfmt_vfsold:
- F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD;
- break;
- case Opt_jqfmt_vfsv0:
- F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0;
- break;
- case Opt_jqfmt_vfsv1:
- F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1;
- break;
- case Opt_noquota:
- clear_opt(sbi, QUOTA);
- clear_opt(sbi, USRQUOTA);
- clear_opt(sbi, GRPQUOTA);
- clear_opt(sbi, PRJQUOTA);
- break;
- #else
- case Opt_quota:
- case Opt_usrquota:
- case Opt_grpquota:
- case Opt_prjquota:
- case Opt_usrjquota:
- case Opt_grpjquota:
- case Opt_prjjquota:
- case Opt_offusrjquota:
- case Opt_offgrpjquota:
- case Opt_offprjjquota:
- case Opt_jqfmt_vfsold:
- case Opt_jqfmt_vfsv0:
- case Opt_jqfmt_vfsv1:
- case Opt_noquota:
- f2fs_info(sbi, "quota operations not supported");
- break;
- #endif
- case Opt_alloc:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "default")) {
- F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
- } else if (!strcmp(name, "reuse")) {
- F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_fsync:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "posix")) {
- F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
- } else if (!strcmp(name, "strict")) {
- F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT;
- } else if (!strcmp(name, "nobarrier")) {
- F2FS_OPTION(sbi).fsync_mode =
- FSYNC_MODE_NOBARRIER;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_test_dummy_encryption:
- ret = f2fs_set_test_dummy_encryption(sb, p, &args[0],
- is_remount);
- if (ret)
- return ret;
- break;
- case Opt_inlinecrypt:
- #ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
- sb->s_flags |= SB_INLINECRYPT;
- #else
- f2fs_info(sbi, "inline encryption not supported");
- #endif
- break;
- case Opt_checkpoint_disable_cap_perc:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- if (arg < 0 || arg > 100)
- return -EINVAL;
- F2FS_OPTION(sbi).unusable_cap_perc = arg;
- set_opt(sbi, DISABLE_CHECKPOINT);
- break;
- case Opt_checkpoint_disable_cap:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- F2FS_OPTION(sbi).unusable_cap = arg;
- set_opt(sbi, DISABLE_CHECKPOINT);
- break;
- case Opt_checkpoint_disable:
- set_opt(sbi, DISABLE_CHECKPOINT);
- break;
- case Opt_checkpoint_enable:
- clear_opt(sbi, DISABLE_CHECKPOINT);
- break;
- case Opt_checkpoint_merge:
- set_opt(sbi, MERGE_CHECKPOINT);
- break;
- case Opt_nocheckpoint_merge:
- clear_opt(sbi, MERGE_CHECKPOINT);
- break;
- #ifdef CONFIG_F2FS_FS_COMPRESSION
- case Opt_compress_algorithm:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "lzo")) {
- #ifdef CONFIG_F2FS_FS_LZO
- F2FS_OPTION(sbi).compress_level = 0;
- F2FS_OPTION(sbi).compress_algorithm =
- COMPRESS_LZO;
- #else
- f2fs_info(sbi, "kernel doesn't support lzo compression");
- #endif
- } else if (!strncmp(name, "lz4", 3)) {
- #ifdef CONFIG_F2FS_FS_LZ4
- ret = f2fs_set_lz4hc_level(sbi, name);
- if (ret) {
- kfree(name);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).compress_algorithm =
- COMPRESS_LZ4;
- #else
- f2fs_info(sbi, "kernel doesn't support lz4 compression");
- #endif
- } else if (!strncmp(name, "zstd", 4)) {
- #ifdef CONFIG_F2FS_FS_ZSTD
- ret = f2fs_set_zstd_level(sbi, name);
- if (ret) {
- kfree(name);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).compress_algorithm =
- COMPRESS_ZSTD;
- #else
- f2fs_info(sbi, "kernel doesn't support zstd compression");
- #endif
- } else if (!strcmp(name, "lzo-rle")) {
- #ifdef CONFIG_F2FS_FS_LZORLE
- F2FS_OPTION(sbi).compress_level = 0;
- F2FS_OPTION(sbi).compress_algorithm =
- COMPRESS_LZORLE;
- #else
- f2fs_info(sbi, "kernel doesn't support lzorle compression");
- #endif
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_compress_log_size:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- if (arg < MIN_COMPRESS_LOG_SIZE ||
- arg > MAX_COMPRESS_LOG_SIZE) {
- f2fs_err(sbi,
- "Compress cluster log size is out of range");
- return -EINVAL;
- }
- F2FS_OPTION(sbi).compress_log_size = arg;
- break;
- case Opt_compress_extension:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- ext = F2FS_OPTION(sbi).extensions;
- ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
- if (strlen(name) >= F2FS_EXTENSION_LEN ||
- ext_cnt >= COMPRESS_EXT_NUM) {
- f2fs_err(sbi,
- "invalid extension length/number");
- kfree(name);
- return -EINVAL;
- }
- if (is_compress_extension_exist(sbi, name, true)) {
- kfree(name);
- break;
- }
- strcpy(ext[ext_cnt], name);
- F2FS_OPTION(sbi).compress_ext_cnt++;
- kfree(name);
- break;
- case Opt_nocompress_extension:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- noext = F2FS_OPTION(sbi).noextensions;
- noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
- if (strlen(name) >= F2FS_EXTENSION_LEN ||
- noext_cnt >= COMPRESS_EXT_NUM) {
- f2fs_err(sbi,
- "invalid extension length/number");
- kfree(name);
- return -EINVAL;
- }
- if (is_compress_extension_exist(sbi, name, false)) {
- kfree(name);
- break;
- }
- strcpy(noext[noext_cnt], name);
- F2FS_OPTION(sbi).nocompress_ext_cnt++;
- kfree(name);
- break;
- case Opt_compress_chksum:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- F2FS_OPTION(sbi).compress_chksum = true;
- break;
- case Opt_compress_mode:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "fs")) {
- F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
- } else if (!strcmp(name, "user")) {
- F2FS_OPTION(sbi).compress_mode = COMPR_MODE_USER;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_compress_cache:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- set_opt(sbi, COMPRESS_CACHE);
- break;
- #else
- case Opt_compress_algorithm:
- case Opt_compress_log_size:
- case Opt_compress_extension:
- case Opt_nocompress_extension:
- case Opt_compress_chksum:
- case Opt_compress_mode:
- case Opt_compress_cache:
- f2fs_info(sbi, "compression options not supported");
- break;
- #endif
- case Opt_atgc:
- set_opt(sbi, ATGC);
- break;
- case Opt_gc_merge:
- set_opt(sbi, GC_MERGE);
- break;
- case Opt_nogc_merge:
- clear_opt(sbi, GC_MERGE);
- break;
- case Opt_discard_unit:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "block")) {
- F2FS_OPTION(sbi).discard_unit =
- DISCARD_UNIT_BLOCK;
- } else if (!strcmp(name, "segment")) {
- F2FS_OPTION(sbi).discard_unit =
- DISCARD_UNIT_SEGMENT;
- } else if (!strcmp(name, "section")) {
- F2FS_OPTION(sbi).discard_unit =
- DISCARD_UNIT_SECTION;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_memory_mode:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "normal")) {
- F2FS_OPTION(sbi).memory_mode =
- MEMORY_MODE_NORMAL;
- } else if (!strcmp(name, "low")) {
- F2FS_OPTION(sbi).memory_mode =
- MEMORY_MODE_LOW;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_age_extent_cache:
- set_opt(sbi, AGE_EXTENT_CACHE);
- break;
- default:
- f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
- p);
- return -EINVAL;
- }
- }
- default_check:
- #ifdef CONFIG_QUOTA
- if (f2fs_check_quota_options(sbi))
- return -EINVAL;
- #else
- if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sbi->sb)) {
- f2fs_info(sbi, "Filesystem with quota feature cannot be mounted RDWR without CONFIG_QUOTA");
- return -EINVAL;
- }
- if (f2fs_sb_has_project_quota(sbi) && !f2fs_readonly(sbi->sb)) {
- f2fs_err(sbi, "Filesystem with project quota feature cannot be mounted RDWR without CONFIG_QUOTA");
- return -EINVAL;
- }
- #endif
- #if !IS_ENABLED(CONFIG_UNICODE)
- if (f2fs_sb_has_casefold(sbi)) {
- f2fs_err(sbi,
- "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
- return -EINVAL;
- }
- #endif
- /*
- * The BLKZONED feature indicates that the drive was formatted with
- * zone alignment optimization. This is optional for host-aware
- * devices, but mandatory for host-managed zoned block devices.
- */
- if (f2fs_sb_has_blkzoned(sbi)) {
- #ifdef CONFIG_BLK_DEV_ZONED
- if (F2FS_OPTION(sbi).discard_unit !=
- DISCARD_UNIT_SECTION) {
- f2fs_info(sbi, "Zoned block device doesn't need small discard, set discard_unit=section by default");
- F2FS_OPTION(sbi).discard_unit =
- DISCARD_UNIT_SECTION;
- }
- if (F2FS_OPTION(sbi).fs_mode != FS_MODE_LFS) {
- f2fs_info(sbi, "Only lfs mode is allowed with zoned block device feature");
- return -EINVAL;
- }
- #else
- f2fs_err(sbi, "Zoned block device support is not enabled");
- return -EINVAL;
- #endif
- }
- #ifdef CONFIG_F2FS_FS_COMPRESSION
- if (f2fs_test_compress_extension(sbi)) {
- f2fs_err(sbi, "invalid compress or nocompress extension");
- return -EINVAL;
- }
- #endif
- if (F2FS_IO_SIZE_BITS(sbi) && !f2fs_lfs_mode(sbi)) {
- f2fs_err(sbi, "Should set mode=lfs with %luKB-sized IO",
- F2FS_IO_SIZE_KB(sbi));
- return -EINVAL;
- }
- if (test_opt(sbi, INLINE_XATTR_SIZE)) {
- int min_size, max_size;
- if (!f2fs_sb_has_extra_attr(sbi) ||
- !f2fs_sb_has_flexible_inline_xattr(sbi)) {
- f2fs_err(sbi, "extra_attr or flexible_inline_xattr feature is off");
- return -EINVAL;
- }
- if (!test_opt(sbi, INLINE_XATTR)) {
- f2fs_err(sbi, "inline_xattr_size option should be set with inline_xattr option");
- return -EINVAL;
- }
- min_size = sizeof(struct f2fs_xattr_header) / sizeof(__le32);
- max_size = MAX_INLINE_XATTR_SIZE;
- if (F2FS_OPTION(sbi).inline_xattr_size < min_size ||
- F2FS_OPTION(sbi).inline_xattr_size > max_size) {
- f2fs_err(sbi, "inline xattr size is out of range: %d ~ %d",
- min_size, max_size);
- return -EINVAL;
- }
- }
- if (test_opt(sbi, DISABLE_CHECKPOINT) && f2fs_lfs_mode(sbi)) {
- f2fs_err(sbi, "LFS is not compatible with checkpoint=disable");
- return -EINVAL;
- }
- if (test_opt(sbi, ATGC) && f2fs_lfs_mode(sbi)) {
- f2fs_err(sbi, "LFS is not compatible with ATGC");
- return -EINVAL;
- }
- if (f2fs_is_readonly(sbi) && test_opt(sbi, FLUSH_MERGE)) {
- f2fs_err(sbi, "FLUSH_MERGE not compatible with readonly mode");
- return -EINVAL;
- }
- if (f2fs_sb_has_readonly(sbi) && !f2fs_readonly(sbi->sb)) {
- f2fs_err(sbi, "Allow to mount readonly mode only");
- return -EROFS;
- }
- return 0;
- }
- static struct inode *f2fs_alloc_inode(struct super_block *sb)
- {
- struct f2fs_inode_info *fi;
- if (time_to_inject(F2FS_SB(sb), FAULT_SLAB_ALLOC))
- return NULL;
- fi = alloc_inode_sb(sb, f2fs_inode_cachep, GFP_F2FS_ZERO);
- if (!fi)
- return NULL;
- init_once((void *) fi);
- /* Initialize f2fs-specific inode info */
- atomic_set(&fi->dirty_pages, 0);
- atomic_set(&fi->i_compr_blocks, 0);
- init_f2fs_rwsem(&fi->i_sem);
- spin_lock_init(&fi->i_size_lock);
- INIT_LIST_HEAD(&fi->dirty_list);
- INIT_LIST_HEAD(&fi->gdirty_list);
- init_f2fs_rwsem(&fi->i_gc_rwsem[READ]);
- init_f2fs_rwsem(&fi->i_gc_rwsem[WRITE]);
- init_f2fs_rwsem(&fi->i_xattr_sem);
- /* Will be used by directory only */
- fi->i_dir_level = F2FS_SB(sb)->dir_level;
- return &fi->vfs_inode;
- }
- static int f2fs_drop_inode(struct inode *inode)
- {
- struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- int ret;
- /*
- * during filesystem shutdown, if checkpoint is disabled,
- * drop useless meta/node dirty pages.
- */
- if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED))) {
- if (inode->i_ino == F2FS_NODE_INO(sbi) ||
- inode->i_ino == F2FS_META_INO(sbi)) {
- trace_f2fs_drop_inode(inode, 1);
- return 1;
- }
- }
- /*
- * This is to avoid a deadlock condition like below.
- * writeback_single_inode(inode)
- * - f2fs_write_data_page
- * - f2fs_gc -> iput -> evict
- * - inode_wait_for_writeback(inode)
- */
- if ((!inode_unhashed(inode) && inode->i_state & I_SYNC)) {
- if (!inode->i_nlink && !is_bad_inode(inode)) {
- /* to avoid evict_inode call simultaneously */
- atomic_inc(&inode->i_count);
- spin_unlock(&inode->i_lock);
- /* should remain fi->extent_tree for writepage */
- f2fs_destroy_extent_node(inode);
- sb_start_intwrite(inode->i_sb);
- f2fs_i_size_write(inode, 0);
- f2fs_submit_merged_write_cond(F2FS_I_SB(inode),
- inode, NULL, 0, DATA);
- truncate_inode_pages_final(inode->i_mapping);
- if (F2FS_HAS_BLOCKS(inode))
- f2fs_truncate(inode);
- sb_end_intwrite(inode->i_sb);
- spin_lock(&inode->i_lock);
- atomic_dec(&inode->i_count);
- }
- trace_f2fs_drop_inode(inode, 0);
- return 0;
- }
- ret = generic_drop_inode(inode);
- if (!ret)
- ret = fscrypt_drop_inode(inode);
- trace_f2fs_drop_inode(inode, ret);
- return ret;
- }
- int f2fs_inode_dirtied(struct inode *inode, bool sync)
- {
- struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- int ret = 0;
- spin_lock(&sbi->inode_lock[DIRTY_META]);
- if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
- ret = 1;
- } else {
- set_inode_flag(inode, FI_DIRTY_INODE);
- stat_inc_dirty_inode(sbi, DIRTY_META);
- }
- if (sync && list_empty(&F2FS_I(inode)->gdirty_list)) {
- list_add_tail(&F2FS_I(inode)->gdirty_list,
- &sbi->inode_list[DIRTY_META]);
- inc_page_count(sbi, F2FS_DIRTY_IMETA);
- }
- spin_unlock(&sbi->inode_lock[DIRTY_META]);
- return ret;
- }
- void f2fs_inode_synced(struct inode *inode)
- {
- struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- spin_lock(&sbi->inode_lock[DIRTY_META]);
- if (!is_inode_flag_set(inode, FI_DIRTY_INODE)) {
- spin_unlock(&sbi->inode_lock[DIRTY_META]);
- return;
- }
- if (!list_empty(&F2FS_I(inode)->gdirty_list)) {
- list_del_init(&F2FS_I(inode)->gdirty_list);
- dec_page_count(sbi, F2FS_DIRTY_IMETA);
- }
- clear_inode_flag(inode, FI_DIRTY_INODE);
- clear_inode_flag(inode, FI_AUTO_RECOVER);
- stat_dec_dirty_inode(F2FS_I_SB(inode), DIRTY_META);
- spin_unlock(&sbi->inode_lock[DIRTY_META]);
- }
- /*
- * f2fs_dirty_inode() is called from __mark_inode_dirty()
- *
- * We should call set_dirty_inode to write the dirty inode through write_inode.
- */
- static void f2fs_dirty_inode(struct inode *inode, int flags)
- {
- struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- if (inode->i_ino == F2FS_NODE_INO(sbi) ||
- inode->i_ino == F2FS_META_INO(sbi))
- return;
- if (is_inode_flag_set(inode, FI_AUTO_RECOVER))
- clear_inode_flag(inode, FI_AUTO_RECOVER);
- f2fs_inode_dirtied(inode, false);
- }
- static void f2fs_free_inode(struct inode *inode)
- {
- fscrypt_free_inode(inode);
- kmem_cache_free(f2fs_inode_cachep, F2FS_I(inode));
- }
- static void destroy_percpu_info(struct f2fs_sb_info *sbi)
- {
- percpu_counter_destroy(&sbi->total_valid_inode_count);
- percpu_counter_destroy(&sbi->rf_node_block_count);
- percpu_counter_destroy(&sbi->alloc_valid_block_count);
- }
- static void destroy_device_list(struct f2fs_sb_info *sbi)
- {
- int i;
- for (i = 0; i < sbi->s_ndevs; i++) {
- blkdev_put(FDEV(i).bdev, FMODE_EXCL);
- #ifdef CONFIG_BLK_DEV_ZONED
- kvfree(FDEV(i).blkz_seq);
- #endif
- }
- kvfree(sbi->devs);
- }
- static void f2fs_put_super(struct super_block *sb)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- int i;
- bool done;
- /* unregister procfs/sysfs entries in advance to avoid race case */
- f2fs_unregister_sysfs(sbi);
- f2fs_quota_off_umount(sb);
- /* prevent remaining shrinker jobs */
- mutex_lock(&sbi->umount_mutex);
- /*
- * flush all issued checkpoints and stop checkpoint issue thread.
- * after then, all checkpoints should be done by each process context.
- */
- f2fs_stop_ckpt_thread(sbi);
- /*
- * We don't need to do checkpoint when superblock is clean.
- * But, the previous checkpoint was not done by umount, it needs to do
- * clean checkpoint again.
- */
- if ((is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
- !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG))) {
- struct cp_control cpc = {
- .reason = CP_UMOUNT,
- };
- f2fs_write_checkpoint(sbi, &cpc);
- }
- /* be sure to wait for any on-going discard commands */
- done = f2fs_issue_discard_timeout(sbi);
- if (f2fs_realtime_discard_enable(sbi) && !sbi->discard_blks && done) {
- struct cp_control cpc = {
- .reason = CP_UMOUNT | CP_TRIMMED,
- };
- f2fs_write_checkpoint(sbi, &cpc);
- }
- /*
- * normally superblock is clean, so we need to release this.
- * In addition, EIO will skip do checkpoint, we need this as well.
- */
- f2fs_release_ino_entry(sbi, true);
- f2fs_leave_shrinker(sbi);
- mutex_unlock(&sbi->umount_mutex);
- /* our cp_error case, we can wait for any writeback page */
- f2fs_flush_merged_writes(sbi);
- f2fs_wait_on_all_pages(sbi, F2FS_WB_CP_DATA);
- f2fs_bug_on(sbi, sbi->fsync_node_num);
- f2fs_destroy_compress_inode(sbi);
- iput(sbi->node_inode);
- sbi->node_inode = NULL;
- iput(sbi->meta_inode);
- sbi->meta_inode = NULL;
- /*
- * iput() can update stat information, if f2fs_write_checkpoint()
- * above failed with error.
- */
- f2fs_destroy_stats(sbi);
- /* destroy f2fs internal modules */
- f2fs_destroy_node_manager(sbi);
- f2fs_destroy_segment_manager(sbi);
- f2fs_destroy_post_read_wq(sbi);
- kvfree(sbi->ckpt);
- sb->s_fs_info = NULL;
- if (sbi->s_chksum_driver)
- crypto_free_shash(sbi->s_chksum_driver);
- kfree(sbi->raw_super);
- destroy_device_list(sbi);
- f2fs_destroy_page_array_cache(sbi);
- f2fs_destroy_xattr_caches(sbi);
- mempool_destroy(sbi->write_io_dummy);
- #ifdef CONFIG_QUOTA
- for (i = 0; i < MAXQUOTAS; i++)
- kfree(F2FS_OPTION(sbi).s_qf_names[i]);
- #endif
- fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
- destroy_percpu_info(sbi);
- f2fs_destroy_iostat(sbi);
- for (i = 0; i < NR_PAGE_TYPE; i++)
- kvfree(sbi->write_io[i]);
- #if IS_ENABLED(CONFIG_UNICODE)
- utf8_unload(sb->s_encoding);
- #endif
- kfree(sbi);
- }
- int f2fs_sync_fs(struct super_block *sb, int sync)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- int err = 0;
- if (unlikely(f2fs_cp_error(sbi)))
- return 0;
- if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
- return 0;
- trace_f2fs_sync_fs(sb, sync);
- if (unlikely(is_sbi_flag_set(sbi, SBI_POR_DOING)))
- return -EAGAIN;
- if (sync)
- err = f2fs_issue_checkpoint(sbi);
- return err;
- }
- static int f2fs_freeze(struct super_block *sb)
- {
- if (f2fs_readonly(sb))
- return 0;
- /* IO error happened before */
- if (unlikely(f2fs_cp_error(F2FS_SB(sb))))
- return -EIO;
- /* must be clean, since sync_filesystem() was already called */
- if (is_sbi_flag_set(F2FS_SB(sb), SBI_IS_DIRTY))
- return -EINVAL;
- /* Let's flush checkpoints and stop the thread. */
- f2fs_flush_ckpt_thread(F2FS_SB(sb));
- /* to avoid deadlock on f2fs_evict_inode->SB_FREEZE_FS */
- set_sbi_flag(F2FS_SB(sb), SBI_IS_FREEZING);
- return 0;
- }
- static int f2fs_unfreeze(struct super_block *sb)
- {
- clear_sbi_flag(F2FS_SB(sb), SBI_IS_FREEZING);
- return 0;
- }
- #ifdef CONFIG_QUOTA
- static int f2fs_statfs_project(struct super_block *sb,
- kprojid_t projid, struct kstatfs *buf)
- {
- struct kqid qid;
- struct dquot *dquot;
- u64 limit;
- u64 curblock;
- qid = make_kqid_projid(projid);
- dquot = dqget(sb, qid);
- if (IS_ERR(dquot))
- return PTR_ERR(dquot);
- spin_lock(&dquot->dq_dqb_lock);
- limit = min_not_zero(dquot->dq_dqb.dqb_bsoftlimit,
- dquot->dq_dqb.dqb_bhardlimit);
- if (limit)
- limit >>= sb->s_blocksize_bits;
- if (limit && buf->f_blocks > limit) {
- curblock = (dquot->dq_dqb.dqb_curspace +
- dquot->dq_dqb.dqb_rsvspace) >> sb->s_blocksize_bits;
- buf->f_blocks = limit;
- buf->f_bfree = buf->f_bavail =
- (buf->f_blocks > curblock) ?
- (buf->f_blocks - curblock) : 0;
- }
- limit = min_not_zero(dquot->dq_dqb.dqb_isoftlimit,
- dquot->dq_dqb.dqb_ihardlimit);
- if (limit && buf->f_files > limit) {
- buf->f_files = limit;
- buf->f_ffree =
- (buf->f_files > dquot->dq_dqb.dqb_curinodes) ?
- (buf->f_files - dquot->dq_dqb.dqb_curinodes) : 0;
- }
- spin_unlock(&dquot->dq_dqb_lock);
- dqput(dquot);
- return 0;
- }
- #endif
- static int f2fs_statfs(struct dentry *dentry, struct kstatfs *buf)
- {
- struct super_block *sb = dentry->d_sb;
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
- block_t total_count, user_block_count, start_count;
- u64 avail_node_count;
- unsigned int total_valid_node_count;
- total_count = le64_to_cpu(sbi->raw_super->block_count);
- start_count = le32_to_cpu(sbi->raw_super->segment0_blkaddr);
- buf->f_type = F2FS_SUPER_MAGIC;
- buf->f_bsize = sbi->blocksize;
- buf->f_blocks = total_count - start_count;
- spin_lock(&sbi->stat_lock);
- user_block_count = sbi->user_block_count;
- total_valid_node_count = valid_node_count(sbi);
- avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
- buf->f_bfree = user_block_count - valid_user_blocks(sbi) -
- sbi->current_reserved_blocks;
- if (unlikely(buf->f_bfree <= sbi->unusable_block_count))
- buf->f_bfree = 0;
- else
- buf->f_bfree -= sbi->unusable_block_count;
- spin_unlock(&sbi->stat_lock);
- if (buf->f_bfree > F2FS_OPTION(sbi).root_reserved_blocks)
- buf->f_bavail = buf->f_bfree -
- F2FS_OPTION(sbi).root_reserved_blocks;
- else
- buf->f_bavail = 0;
- if (avail_node_count > user_block_count) {
- buf->f_files = user_block_count;
- buf->f_ffree = buf->f_bavail;
- } else {
- buf->f_files = avail_node_count;
- buf->f_ffree = min(avail_node_count - total_valid_node_count,
- buf->f_bavail);
- }
- buf->f_namelen = F2FS_NAME_LEN;
- buf->f_fsid = u64_to_fsid(id);
- #ifdef CONFIG_QUOTA
- if (is_inode_flag_set(dentry->d_inode, FI_PROJ_INHERIT) &&
- sb_has_quota_limits_enabled(sb, PRJQUOTA)) {
- f2fs_statfs_project(sb, F2FS_I(dentry->d_inode)->i_projid, buf);
- }
- #endif
- return 0;
- }
- static inline void f2fs_show_quota_options(struct seq_file *seq,
- struct super_block *sb)
- {
- #ifdef CONFIG_QUOTA
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- if (F2FS_OPTION(sbi).s_jquota_fmt) {
- char *fmtname = "";
- switch (F2FS_OPTION(sbi).s_jquota_fmt) {
- case QFMT_VFS_OLD:
- fmtname = "vfsold";
- break;
- case QFMT_VFS_V0:
- fmtname = "vfsv0";
- break;
- case QFMT_VFS_V1:
- fmtname = "vfsv1";
- break;
- }
- seq_printf(seq, ",jqfmt=%s", fmtname);
- }
- if (F2FS_OPTION(sbi).s_qf_names[USRQUOTA])
- seq_show_option(seq, "usrjquota",
- F2FS_OPTION(sbi).s_qf_names[USRQUOTA]);
- if (F2FS_OPTION(sbi).s_qf_names[GRPQUOTA])
- seq_show_option(seq, "grpjquota",
- F2FS_OPTION(sbi).s_qf_names[GRPQUOTA]);
- if (F2FS_OPTION(sbi).s_qf_names[PRJQUOTA])
- seq_show_option(seq, "prjjquota",
- F2FS_OPTION(sbi).s_qf_names[PRJQUOTA]);
- #endif
- }
- #ifdef CONFIG_F2FS_FS_COMPRESSION
- static inline void f2fs_show_compress_options(struct seq_file *seq,
- struct super_block *sb)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- char *algtype = "";
- int i;
- if (!f2fs_sb_has_compression(sbi))
- return;
- switch (F2FS_OPTION(sbi).compress_algorithm) {
- case COMPRESS_LZO:
- algtype = "lzo";
- break;
- case COMPRESS_LZ4:
- algtype = "lz4";
- break;
- case COMPRESS_ZSTD:
- algtype = "zstd";
- break;
- case COMPRESS_LZORLE:
- algtype = "lzo-rle";
- break;
- }
- seq_printf(seq, ",compress_algorithm=%s", algtype);
- if (F2FS_OPTION(sbi).compress_level)
- seq_printf(seq, ":%d", F2FS_OPTION(sbi).compress_level);
- seq_printf(seq, ",compress_log_size=%u",
- F2FS_OPTION(sbi).compress_log_size);
- for (i = 0; i < F2FS_OPTION(sbi).compress_ext_cnt; i++) {
- seq_printf(seq, ",compress_extension=%s",
- F2FS_OPTION(sbi).extensions[i]);
- }
- for (i = 0; i < F2FS_OPTION(sbi).nocompress_ext_cnt; i++) {
- seq_printf(seq, ",nocompress_extension=%s",
- F2FS_OPTION(sbi).noextensions[i]);
- }
- if (F2FS_OPTION(sbi).compress_chksum)
- seq_puts(seq, ",compress_chksum");
- if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_FS)
- seq_printf(seq, ",compress_mode=%s", "fs");
- else if (F2FS_OPTION(sbi).compress_mode == COMPR_MODE_USER)
- seq_printf(seq, ",compress_mode=%s", "user");
- if (test_opt(sbi, COMPRESS_CACHE))
- seq_puts(seq, ",compress_cache");
- }
- #endif
- static int f2fs_show_options(struct seq_file *seq, struct dentry *root)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(root->d_sb);
- if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_SYNC)
- seq_printf(seq, ",background_gc=%s", "sync");
- else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_ON)
- seq_printf(seq, ",background_gc=%s", "on");
- else if (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF)
- seq_printf(seq, ",background_gc=%s", "off");
- if (test_opt(sbi, GC_MERGE))
- seq_puts(seq, ",gc_merge");
- else
- seq_puts(seq, ",nogc_merge");
- if (test_opt(sbi, DISABLE_ROLL_FORWARD))
- seq_puts(seq, ",disable_roll_forward");
- if (test_opt(sbi, NORECOVERY))
- seq_puts(seq, ",norecovery");
- if (test_opt(sbi, DISCARD)) {
- seq_puts(seq, ",discard");
- if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_BLOCK)
- seq_printf(seq, ",discard_unit=%s", "block");
- else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SEGMENT)
- seq_printf(seq, ",discard_unit=%s", "segment");
- else if (F2FS_OPTION(sbi).discard_unit == DISCARD_UNIT_SECTION)
- seq_printf(seq, ",discard_unit=%s", "section");
- } else {
- seq_puts(seq, ",nodiscard");
- }
- if (test_opt(sbi, NOHEAP))
- seq_puts(seq, ",no_heap");
- else
- seq_puts(seq, ",heap");
- #ifdef CONFIG_F2FS_FS_XATTR
- if (test_opt(sbi, XATTR_USER))
- seq_puts(seq, ",user_xattr");
- else
- seq_puts(seq, ",nouser_xattr");
- if (test_opt(sbi, INLINE_XATTR))
- seq_puts(seq, ",inline_xattr");
- else
- seq_puts(seq, ",noinline_xattr");
- if (test_opt(sbi, INLINE_XATTR_SIZE))
- seq_printf(seq, ",inline_xattr_size=%u",
- F2FS_OPTION(sbi).inline_xattr_size);
- #endif
- #ifdef CONFIG_F2FS_FS_POSIX_ACL
- if (test_opt(sbi, POSIX_ACL))
- seq_puts(seq, ",acl");
- else
- seq_puts(seq, ",noacl");
- #endif
- if (test_opt(sbi, DISABLE_EXT_IDENTIFY))
- seq_puts(seq, ",disable_ext_identify");
- if (test_opt(sbi, INLINE_DATA))
- seq_puts(seq, ",inline_data");
- else
- seq_puts(seq, ",noinline_data");
- if (test_opt(sbi, INLINE_DENTRY))
- seq_puts(seq, ",inline_dentry");
- else
- seq_puts(seq, ",noinline_dentry");
- if (test_opt(sbi, FLUSH_MERGE))
- seq_puts(seq, ",flush_merge");
- else
- seq_puts(seq, ",noflush_merge");
- if (test_opt(sbi, NOBARRIER))
- seq_puts(seq, ",nobarrier");
- else
- seq_puts(seq, ",barrier");
- if (test_opt(sbi, FASTBOOT))
- seq_puts(seq, ",fastboot");
- if (test_opt(sbi, READ_EXTENT_CACHE))
- seq_puts(seq, ",extent_cache");
- else
- seq_puts(seq, ",noextent_cache");
- if (test_opt(sbi, AGE_EXTENT_CACHE))
- seq_puts(seq, ",age_extent_cache");
- if (test_opt(sbi, DATA_FLUSH))
- seq_puts(seq, ",data_flush");
- seq_puts(seq, ",mode=");
- if (F2FS_OPTION(sbi).fs_mode == FS_MODE_ADAPTIVE)
- seq_puts(seq, "adaptive");
- else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_LFS)
- seq_puts(seq, "lfs");
- else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_SEG)
- seq_puts(seq, "fragment:segment");
- else if (F2FS_OPTION(sbi).fs_mode == FS_MODE_FRAGMENT_BLK)
- seq_puts(seq, "fragment:block");
- seq_printf(seq, ",active_logs=%u", F2FS_OPTION(sbi).active_logs);
- if (test_opt(sbi, RESERVE_ROOT))
- seq_printf(seq, ",reserve_root=%u,resuid=%u,resgid=%u",
- F2FS_OPTION(sbi).root_reserved_blocks,
- from_kuid_munged(&init_user_ns,
- F2FS_OPTION(sbi).s_resuid),
- from_kgid_munged(&init_user_ns,
- F2FS_OPTION(sbi).s_resgid));
- if (F2FS_IO_SIZE_BITS(sbi))
- seq_printf(seq, ",io_bits=%u",
- F2FS_OPTION(sbi).write_io_size_bits);
- #ifdef CONFIG_F2FS_FAULT_INJECTION
- if (test_opt(sbi, FAULT_INJECTION)) {
- seq_printf(seq, ",fault_injection=%u",
- F2FS_OPTION(sbi).fault_info.inject_rate);
- seq_printf(seq, ",fault_type=%u",
- F2FS_OPTION(sbi).fault_info.inject_type);
- }
- #endif
- #ifdef CONFIG_QUOTA
- if (test_opt(sbi, QUOTA))
- seq_puts(seq, ",quota");
- if (test_opt(sbi, USRQUOTA))
- seq_puts(seq, ",usrquota");
- if (test_opt(sbi, GRPQUOTA))
- seq_puts(seq, ",grpquota");
- if (test_opt(sbi, PRJQUOTA))
- seq_puts(seq, ",prjquota");
- #endif
- f2fs_show_quota_options(seq, sbi->sb);
- fscrypt_show_test_dummy_encryption(seq, ',', sbi->sb);
- if (sbi->sb->s_flags & SB_INLINECRYPT)
- seq_puts(seq, ",inlinecrypt");
- if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_DEFAULT)
- seq_printf(seq, ",alloc_mode=%s", "default");
- else if (F2FS_OPTION(sbi).alloc_mode == ALLOC_MODE_REUSE)
- seq_printf(seq, ",alloc_mode=%s", "reuse");
- if (test_opt(sbi, DISABLE_CHECKPOINT))
- seq_printf(seq, ",checkpoint=disable:%u",
- F2FS_OPTION(sbi).unusable_cap);
- if (test_opt(sbi, MERGE_CHECKPOINT))
- seq_puts(seq, ",checkpoint_merge");
- else
- seq_puts(seq, ",nocheckpoint_merge");
- if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_POSIX)
- seq_printf(seq, ",fsync_mode=%s", "posix");
- else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_STRICT)
- seq_printf(seq, ",fsync_mode=%s", "strict");
- else if (F2FS_OPTION(sbi).fsync_mode == FSYNC_MODE_NOBARRIER)
- seq_printf(seq, ",fsync_mode=%s", "nobarrier");
- #ifdef CONFIG_F2FS_FS_COMPRESSION
- f2fs_show_compress_options(seq, sbi->sb);
- #endif
- if (test_opt(sbi, ATGC))
- seq_puts(seq, ",atgc");
- if (F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_NORMAL)
- seq_printf(seq, ",memory=%s", "normal");
- else if (F2FS_OPTION(sbi).memory_mode == MEMORY_MODE_LOW)
- seq_printf(seq, ",memory=%s", "low");
- return 0;
- }
- static void default_options(struct f2fs_sb_info *sbi)
- {
- /* init some FS parameters */
- if (f2fs_sb_has_readonly(sbi))
- F2FS_OPTION(sbi).active_logs = NR_CURSEG_RO_TYPE;
- else
- F2FS_OPTION(sbi).active_logs = NR_CURSEG_PERSIST_TYPE;
- F2FS_OPTION(sbi).inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
- if (le32_to_cpu(F2FS_RAW_SUPER(sbi)->segment_count_main) <=
- SMALL_VOLUME_SEGMENTS)
- F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
- else
- F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
- F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
- F2FS_OPTION(sbi).s_resuid = make_kuid(&init_user_ns, F2FS_DEF_RESUID);
- F2FS_OPTION(sbi).s_resgid = make_kgid(&init_user_ns, F2FS_DEF_RESGID);
- if (f2fs_sb_has_compression(sbi)) {
- F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
- F2FS_OPTION(sbi).compress_log_size = MIN_COMPRESS_LOG_SIZE;
- F2FS_OPTION(sbi).compress_ext_cnt = 0;
- F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
- }
- F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
- F2FS_OPTION(sbi).memory_mode = MEMORY_MODE_NORMAL;
- sbi->sb->s_flags &= ~SB_INLINECRYPT;
- set_opt(sbi, INLINE_XATTR);
- set_opt(sbi, INLINE_DATA);
- set_opt(sbi, INLINE_DENTRY);
- set_opt(sbi, READ_EXTENT_CACHE);
- set_opt(sbi, NOHEAP);
- clear_opt(sbi, DISABLE_CHECKPOINT);
- set_opt(sbi, MERGE_CHECKPOINT);
- F2FS_OPTION(sbi).unusable_cap = 0;
- sbi->sb->s_flags |= SB_LAZYTIME;
- if (!f2fs_is_readonly(sbi))
- set_opt(sbi, FLUSH_MERGE);
- if (f2fs_hw_support_discard(sbi) || f2fs_hw_should_discard(sbi))
- set_opt(sbi, DISCARD);
- if (f2fs_sb_has_blkzoned(sbi)) {
- F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
- F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_SECTION;
- } else {
- F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
- F2FS_OPTION(sbi).discard_unit = DISCARD_UNIT_BLOCK;
- }
- #ifdef CONFIG_F2FS_FS_XATTR
- set_opt(sbi, XATTR_USER);
- #endif
- #ifdef CONFIG_F2FS_FS_POSIX_ACL
- set_opt(sbi, POSIX_ACL);
- #endif
- f2fs_build_fault_attr(sbi, 0, 0);
- }
- #ifdef CONFIG_QUOTA
- static int f2fs_enable_quotas(struct super_block *sb);
- #endif
- static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
- {
- unsigned int s_flags = sbi->sb->s_flags;
- struct cp_control cpc;
- unsigned int gc_mode = sbi->gc_mode;
- int err = 0;
- int ret;
- block_t unusable;
- if (s_flags & SB_RDONLY) {
- f2fs_err(sbi, "checkpoint=disable on readonly fs");
- return -EINVAL;
- }
- sbi->sb->s_flags |= SB_ACTIVE;
- /* check if we need more GC first */
- unusable = f2fs_get_unusable_blocks(sbi);
- if (!f2fs_disable_cp_again(sbi, unusable))
- goto skip_gc;
- f2fs_update_time(sbi, DISABLE_TIME);
- sbi->gc_mode = GC_URGENT_HIGH;
- while (!f2fs_time_over(sbi, DISABLE_TIME)) {
- struct f2fs_gc_control gc_control = {
- .victim_segno = NULL_SEGNO,
- .init_gc_type = FG_GC,
- .should_migrate_blocks = false,
- .err_gc_skipped = true,
- .nr_free_secs = 1 };
- f2fs_down_write(&sbi->gc_lock);
- err = f2fs_gc(sbi, &gc_control);
- if (err == -ENODATA) {
- err = 0;
- break;
- }
- if (err && err != -EAGAIN)
- break;
- }
- ret = sync_filesystem(sbi->sb);
- if (ret || err) {
- err = ret ? ret : err;
- goto restore_flag;
- }
- unusable = f2fs_get_unusable_blocks(sbi);
- if (f2fs_disable_cp_again(sbi, unusable)) {
- err = -EAGAIN;
- goto restore_flag;
- }
- skip_gc:
- f2fs_down_write(&sbi->gc_lock);
- cpc.reason = CP_PAUSE;
- set_sbi_flag(sbi, SBI_CP_DISABLED);
- err = f2fs_write_checkpoint(sbi, &cpc);
- if (err)
- goto out_unlock;
- spin_lock(&sbi->stat_lock);
- sbi->unusable_block_count = unusable;
- spin_unlock(&sbi->stat_lock);
- out_unlock:
- f2fs_up_write(&sbi->gc_lock);
- restore_flag:
- sbi->gc_mode = gc_mode;
- sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */
- return err;
- }
- static void f2fs_enable_checkpoint(struct f2fs_sb_info *sbi)
- {
- int retry = DEFAULT_RETRY_IO_COUNT;
- /* we should flush all the data to keep data consistency */
- do {
- sync_inodes_sb(sbi->sb);
- f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
- } while (get_pages(sbi, F2FS_DIRTY_DATA) && retry--);
- if (unlikely(retry < 0))
- f2fs_warn(sbi, "checkpoint=enable has some unwritten data.");
- f2fs_down_write(&sbi->gc_lock);
- f2fs_dirty_to_prefree(sbi);
- clear_sbi_flag(sbi, SBI_CP_DISABLED);
- set_sbi_flag(sbi, SBI_IS_DIRTY);
- f2fs_up_write(&sbi->gc_lock);
- f2fs_sync_fs(sbi->sb, 1);
- /* Let's ensure there's no pending checkpoint anymore */
- f2fs_flush_ckpt_thread(sbi);
- }
- static int f2fs_remount(struct super_block *sb, int *flags, char *data)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- struct f2fs_mount_info org_mount_opt;
- unsigned long old_sb_flags;
- int err;
- bool need_restart_gc = false, need_stop_gc = false;
- bool need_restart_ckpt = false, need_stop_ckpt = false;
- bool need_restart_flush = false, need_stop_flush = false;
- bool need_restart_discard = false, need_stop_discard = false;
- bool no_read_extent_cache = !test_opt(sbi, READ_EXTENT_CACHE);
- bool no_age_extent_cache = !test_opt(sbi, AGE_EXTENT_CACHE);
- bool enable_checkpoint = !test_opt(sbi, DISABLE_CHECKPOINT);
- bool no_io_align = !F2FS_IO_ALIGNED(sbi);
- bool no_atgc = !test_opt(sbi, ATGC);
- bool no_discard = !test_opt(sbi, DISCARD);
- bool no_compress_cache = !test_opt(sbi, COMPRESS_CACHE);
- bool block_unit_discard = f2fs_block_unit_discard(sbi);
- #ifdef CONFIG_QUOTA
- int i, j;
- #endif
- /*
- * Save the old mount options in case we
- * need to restore them.
- */
- org_mount_opt = sbi->mount_opt;
- old_sb_flags = sb->s_flags;
- #ifdef CONFIG_QUOTA
- org_mount_opt.s_jquota_fmt = F2FS_OPTION(sbi).s_jquota_fmt;
- for (i = 0; i < MAXQUOTAS; i++) {
- if (F2FS_OPTION(sbi).s_qf_names[i]) {
- org_mount_opt.s_qf_names[i] =
- kstrdup(F2FS_OPTION(sbi).s_qf_names[i],
- GFP_KERNEL);
- if (!org_mount_opt.s_qf_names[i]) {
- for (j = 0; j < i; j++)
- kfree(org_mount_opt.s_qf_names[j]);
- return -ENOMEM;
- }
- } else {
- org_mount_opt.s_qf_names[i] = NULL;
- }
- }
- #endif
- /* recover superblocks we couldn't write due to previous RO mount */
- if (!(*flags & SB_RDONLY) && is_sbi_flag_set(sbi, SBI_NEED_SB_WRITE)) {
- err = f2fs_commit_super(sbi, false);
- f2fs_info(sbi, "Try to recover all the superblocks, ret: %d",
- err);
- if (!err)
- clear_sbi_flag(sbi, SBI_NEED_SB_WRITE);
- }
- default_options(sbi);
- /* parse mount options */
- err = parse_options(sb, data, true);
- if (err)
- goto restore_opts;
- /*
- * Previous and new state of filesystem is RO,
- * so skip checking GC and FLUSH_MERGE conditions.
- */
- if (f2fs_readonly(sb) && (*flags & SB_RDONLY))
- goto skip;
- if (f2fs_dev_is_readonly(sbi) && !(*flags & SB_RDONLY)) {
- err = -EROFS;
- goto restore_opts;
- }
- #ifdef CONFIG_QUOTA
- if (!f2fs_readonly(sb) && (*flags & SB_RDONLY)) {
- err = dquot_suspend(sb, -1);
- if (err < 0)
- goto restore_opts;
- } else if (f2fs_readonly(sb) && !(*flags & SB_RDONLY)) {
- /* dquot_resume needs RW */
- sb->s_flags &= ~SB_RDONLY;
- if (sb_any_quota_suspended(sb)) {
- dquot_resume(sb, -1);
- } else if (f2fs_sb_has_quota_ino(sbi)) {
- err = f2fs_enable_quotas(sb);
- if (err)
- goto restore_opts;
- }
- }
- #endif
- if (f2fs_lfs_mode(sbi) && !IS_F2FS_IPU_DISABLE(sbi)) {
- err = -EINVAL;
- f2fs_warn(sbi, "LFS is not compatible with IPU");
- goto restore_opts;
- }
- /* disallow enable atgc dynamically */
- if (no_atgc == !!test_opt(sbi, ATGC)) {
- err = -EINVAL;
- f2fs_warn(sbi, "switch atgc option is not allowed");
- goto restore_opts;
- }
- /* disallow enable/disable extent_cache dynamically */
- if (no_read_extent_cache == !!test_opt(sbi, READ_EXTENT_CACHE)) {
- err = -EINVAL;
- f2fs_warn(sbi, "switch extent_cache option is not allowed");
- goto restore_opts;
- }
- /* disallow enable/disable age extent_cache dynamically */
- if (no_age_extent_cache == !!test_opt(sbi, AGE_EXTENT_CACHE)) {
- err = -EINVAL;
- f2fs_warn(sbi, "switch age_extent_cache option is not allowed");
- goto restore_opts;
- }
- if (no_io_align == !!F2FS_IO_ALIGNED(sbi)) {
- err = -EINVAL;
- f2fs_warn(sbi, "switch io_bits option is not allowed");
- goto restore_opts;
- }
- if (no_compress_cache == !!test_opt(sbi, COMPRESS_CACHE)) {
- err = -EINVAL;
- f2fs_warn(sbi, "switch compress_cache option is not allowed");
- goto restore_opts;
- }
- if (block_unit_discard != f2fs_block_unit_discard(sbi)) {
- err = -EINVAL;
- f2fs_warn(sbi, "switch discard_unit option is not allowed");
- goto restore_opts;
- }
- if ((*flags & SB_RDONLY) && test_opt(sbi, DISABLE_CHECKPOINT)) {
- err = -EINVAL;
- f2fs_warn(sbi, "disabling checkpoint not compatible with read-only");
- goto restore_opts;
- }
- /*
- * We stop the GC thread if FS is mounted as RO
- * or if background_gc = off is passed in mount
- * option. Also sync the filesystem.
- */
- if ((*flags & SB_RDONLY) ||
- (F2FS_OPTION(sbi).bggc_mode == BGGC_MODE_OFF &&
- !test_opt(sbi, GC_MERGE))) {
- if (sbi->gc_thread) {
- f2fs_stop_gc_thread(sbi);
- need_restart_gc = true;
- }
- } else if (!sbi->gc_thread) {
- err = f2fs_start_gc_thread(sbi);
- if (err)
- goto restore_opts;
- need_stop_gc = true;
- }
- if (*flags & SB_RDONLY) {
- sync_inodes_sb(sb);
- set_sbi_flag(sbi, SBI_IS_DIRTY);
- set_sbi_flag(sbi, SBI_IS_CLOSE);
- f2fs_sync_fs(sb, 1);
- clear_sbi_flag(sbi, SBI_IS_CLOSE);
- }
- if ((*flags & SB_RDONLY) || test_opt(sbi, DISABLE_CHECKPOINT) ||
- !test_opt(sbi, MERGE_CHECKPOINT)) {
- f2fs_stop_ckpt_thread(sbi);
- need_restart_ckpt = true;
- } else {
- /* Flush if the prevous checkpoint, if exists. */
- f2fs_flush_ckpt_thread(sbi);
- err = f2fs_start_ckpt_thread(sbi);
- if (err) {
- f2fs_err(sbi,
- "Failed to start F2FS issue_checkpoint_thread (%d)",
- err);
- goto restore_gc;
- }
- need_stop_ckpt = true;
- }
- /*
- * We stop issue flush thread if FS is mounted as RO
- * or if flush_merge is not passed in mount option.
- */
- if ((*flags & SB_RDONLY) || !test_opt(sbi, FLUSH_MERGE)) {
- clear_opt(sbi, FLUSH_MERGE);
- f2fs_destroy_flush_cmd_control(sbi, false);
- need_restart_flush = true;
- } else {
- err = f2fs_create_flush_cmd_control(sbi);
- if (err)
- goto restore_ckpt;
- need_stop_flush = true;
- }
- if (no_discard == !!test_opt(sbi, DISCARD)) {
- if (test_opt(sbi, DISCARD)) {
- err = f2fs_start_discard_thread(sbi);
- if (err)
- goto restore_flush;
- need_stop_discard = true;
- } else {
- f2fs_stop_discard_thread(sbi);
- f2fs_issue_discard_timeout(sbi);
- need_restart_discard = true;
- }
- }
- if (enable_checkpoint == !!test_opt(sbi, DISABLE_CHECKPOINT)) {
- if (test_opt(sbi, DISABLE_CHECKPOINT)) {
- err = f2fs_disable_checkpoint(sbi);
- if (err)
- goto restore_discard;
- } else {
- f2fs_enable_checkpoint(sbi);
- }
- }
- skip:
- #ifdef CONFIG_QUOTA
- /* Release old quota file names */
- for (i = 0; i < MAXQUOTAS; i++)
- kfree(org_mount_opt.s_qf_names[i]);
- #endif
- /* Update the POSIXACL Flag */
- sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
- (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
- limit_reserve_root(sbi);
- adjust_unusable_cap_perc(sbi);
- *flags = (*flags & ~SB_LAZYTIME) | (sb->s_flags & SB_LAZYTIME);
- return 0;
- restore_discard:
- if (need_restart_discard) {
- if (f2fs_start_discard_thread(sbi))
- f2fs_warn(sbi, "discard has been stopped");
- } else if (need_stop_discard) {
- f2fs_stop_discard_thread(sbi);
- }
- restore_flush:
- if (need_restart_flush) {
- if (f2fs_create_flush_cmd_control(sbi))
- f2fs_warn(sbi, "background flush thread has stopped");
- } else if (need_stop_flush) {
- clear_opt(sbi, FLUSH_MERGE);
- f2fs_destroy_flush_cmd_control(sbi, false);
- }
- restore_ckpt:
- if (need_restart_ckpt) {
- if (f2fs_start_ckpt_thread(sbi))
- f2fs_warn(sbi, "background ckpt thread has stopped");
- } else if (need_stop_ckpt) {
- f2fs_stop_ckpt_thread(sbi);
- }
- restore_gc:
- if (need_restart_gc) {
- if (f2fs_start_gc_thread(sbi))
- f2fs_warn(sbi, "background gc thread has stopped");
- } else if (need_stop_gc) {
- f2fs_stop_gc_thread(sbi);
- }
- restore_opts:
- #ifdef CONFIG_QUOTA
- F2FS_OPTION(sbi).s_jquota_fmt = org_mount_opt.s_jquota_fmt;
- for (i = 0; i < MAXQUOTAS; i++) {
- kfree(F2FS_OPTION(sbi).s_qf_names[i]);
- F2FS_OPTION(sbi).s_qf_names[i] = org_mount_opt.s_qf_names[i];
- }
- #endif
- sbi->mount_opt = org_mount_opt;
- sb->s_flags = old_sb_flags;
- return err;
- }
- #ifdef CONFIG_QUOTA
- static bool f2fs_need_recovery(struct f2fs_sb_info *sbi)
- {
- /* need to recovery orphan */
- if (is_set_ckpt_flags(sbi, CP_ORPHAN_PRESENT_FLAG))
- return true;
- /* need to recovery data */
- if (test_opt(sbi, DISABLE_ROLL_FORWARD))
- return false;
- if (test_opt(sbi, NORECOVERY))
- return false;
- return !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG);
- }
- static bool f2fs_recover_quota_begin(struct f2fs_sb_info *sbi)
- {
- bool readonly = f2fs_readonly(sbi->sb);
- if (!f2fs_need_recovery(sbi))
- return false;
- /* it doesn't need to check f2fs_sb_has_readonly() */
- if (f2fs_hw_is_readonly(sbi))
- return false;
- if (readonly) {
- sbi->sb->s_flags &= ~SB_RDONLY;
- set_sbi_flag(sbi, SBI_IS_WRITABLE);
- }
- /*
- * Turn on quotas which were not enabled for read-only mounts if
- * filesystem has quota feature, so that they are updated correctly.
- */
- return f2fs_enable_quota_files(sbi, readonly);
- }
- static void f2fs_recover_quota_end(struct f2fs_sb_info *sbi,
- bool quota_enabled)
- {
- if (quota_enabled)
- f2fs_quota_off_umount(sbi->sb);
- if (is_sbi_flag_set(sbi, SBI_IS_WRITABLE)) {
- clear_sbi_flag(sbi, SBI_IS_WRITABLE);
- sbi->sb->s_flags |= SB_RDONLY;
- }
- }
- /* Read data from quotafile */
- static ssize_t f2fs_quota_read(struct super_block *sb, int type, char *data,
- size_t len, loff_t off)
- {
- struct inode *inode = sb_dqopt(sb)->files[type];
- struct address_space *mapping = inode->i_mapping;
- block_t blkidx = F2FS_BYTES_TO_BLK(off);
- int offset = off & (sb->s_blocksize - 1);
- int tocopy;
- size_t toread;
- loff_t i_size = i_size_read(inode);
- struct page *page;
- if (off > i_size)
- return 0;
- if (off + len > i_size)
- len = i_size - off;
- toread = len;
- while (toread > 0) {
- tocopy = min_t(unsigned long, sb->s_blocksize - offset, toread);
- repeat:
- page = read_cache_page_gfp(mapping, blkidx, GFP_NOFS);
- if (IS_ERR(page)) {
- if (PTR_ERR(page) == -ENOMEM) {
- memalloc_retry_wait(GFP_NOFS);
- goto repeat;
- }
- set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
- return PTR_ERR(page);
- }
- lock_page(page);
- if (unlikely(page->mapping != mapping)) {
- f2fs_put_page(page, 1);
- goto repeat;
- }
- if (unlikely(!PageUptodate(page))) {
- f2fs_put_page(page, 1);
- set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
- return -EIO;
- }
- memcpy_from_page(data, page, offset, tocopy);
- f2fs_put_page(page, 1);
- offset = 0;
- toread -= tocopy;
- data += tocopy;
- blkidx++;
- }
- return len;
- }
- /* Write to quotafile */
- static ssize_t f2fs_quota_write(struct super_block *sb, int type,
- const char *data, size_t len, loff_t off)
- {
- struct inode *inode = sb_dqopt(sb)->files[type];
- struct address_space *mapping = inode->i_mapping;
- const struct address_space_operations *a_ops = mapping->a_ops;
- int offset = off & (sb->s_blocksize - 1);
- size_t towrite = len;
- struct page *page;
- void *fsdata = NULL;
- int err = 0;
- int tocopy;
- while (towrite > 0) {
- tocopy = min_t(unsigned long, sb->s_blocksize - offset,
- towrite);
- retry:
- err = a_ops->write_begin(NULL, mapping, off, tocopy,
- &page, &fsdata);
- if (unlikely(err)) {
- if (err == -ENOMEM) {
- f2fs_io_schedule_timeout(DEFAULT_IO_TIMEOUT);
- goto retry;
- }
- set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
- break;
- }
- memcpy_to_page(page, offset, data, tocopy);
- a_ops->write_end(NULL, mapping, off, tocopy, tocopy,
- page, fsdata);
- offset = 0;
- towrite -= tocopy;
- off += tocopy;
- data += tocopy;
- cond_resched();
- }
- if (len == towrite)
- return err;
- inode->i_mtime = inode->i_ctime = current_time(inode);
- f2fs_mark_inode_dirty_sync(inode, false);
- return len - towrite;
- }
- int f2fs_dquot_initialize(struct inode *inode)
- {
- if (time_to_inject(F2FS_I_SB(inode), FAULT_DQUOT_INIT))
- return -ESRCH;
- return dquot_initialize(inode);
- }
- static struct dquot **f2fs_get_dquots(struct inode *inode)
- {
- return F2FS_I(inode)->i_dquot;
- }
- static qsize_t *f2fs_get_reserved_space(struct inode *inode)
- {
- return &F2FS_I(inode)->i_reserved_quota;
- }
- static int f2fs_quota_on_mount(struct f2fs_sb_info *sbi, int type)
- {
- if (is_set_ckpt_flags(sbi, CP_QUOTA_NEED_FSCK_FLAG)) {
- f2fs_err(sbi, "quota sysfile may be corrupted, skip loading it");
- return 0;
- }
- return dquot_quota_on_mount(sbi->sb, F2FS_OPTION(sbi).s_qf_names[type],
- F2FS_OPTION(sbi).s_jquota_fmt, type);
- }
- int f2fs_enable_quota_files(struct f2fs_sb_info *sbi, bool rdonly)
- {
- int enabled = 0;
- int i, err;
- if (f2fs_sb_has_quota_ino(sbi) && rdonly) {
- err = f2fs_enable_quotas(sbi->sb);
- if (err) {
- f2fs_err(sbi, "Cannot turn on quota_ino: %d", err);
- return 0;
- }
- return 1;
- }
- for (i = 0; i < MAXQUOTAS; i++) {
- if (F2FS_OPTION(sbi).s_qf_names[i]) {
- err = f2fs_quota_on_mount(sbi, i);
- if (!err) {
- enabled = 1;
- continue;
- }
- f2fs_err(sbi, "Cannot turn on quotas: %d on %d",
- err, i);
- }
- }
- return enabled;
- }
- static int f2fs_quota_enable(struct super_block *sb, int type, int format_id,
- unsigned int flags)
- {
- struct inode *qf_inode;
- unsigned long qf_inum;
- int err;
- BUG_ON(!f2fs_sb_has_quota_ino(F2FS_SB(sb)));
- qf_inum = f2fs_qf_ino(sb, type);
- if (!qf_inum)
- return -EPERM;
- qf_inode = f2fs_iget(sb, qf_inum);
- if (IS_ERR(qf_inode)) {
- f2fs_err(F2FS_SB(sb), "Bad quota inode %u:%lu", type, qf_inum);
- return PTR_ERR(qf_inode);
- }
- /* Don't account quota for quota files to avoid recursion */
- qf_inode->i_flags |= S_NOQUOTA;
- err = dquot_load_quota_inode(qf_inode, type, format_id, flags);
- iput(qf_inode);
- return err;
- }
- static int f2fs_enable_quotas(struct super_block *sb)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- int type, err = 0;
- unsigned long qf_inum;
- bool quota_mopt[MAXQUOTAS] = {
- test_opt(sbi, USRQUOTA),
- test_opt(sbi, GRPQUOTA),
- test_opt(sbi, PRJQUOTA),
- };
- if (is_set_ckpt_flags(F2FS_SB(sb), CP_QUOTA_NEED_FSCK_FLAG)) {
- f2fs_err(sbi, "quota file may be corrupted, skip loading it");
- return 0;
- }
- sb_dqopt(sb)->flags |= DQUOT_QUOTA_SYS_FILE;
- for (type = 0; type < MAXQUOTAS; type++) {
- qf_inum = f2fs_qf_ino(sb, type);
- if (qf_inum) {
- err = f2fs_quota_enable(sb, type, QFMT_VFS_V1,
- DQUOT_USAGE_ENABLED |
- (quota_mopt[type] ? DQUOT_LIMITS_ENABLED : 0));
- if (err) {
- f2fs_err(sbi, "Failed to enable quota tracking (type=%d, err=%d). Please run fsck to fix.",
- type, err);
- for (type--; type >= 0; type--)
- dquot_quota_off(sb, type);
- set_sbi_flag(F2FS_SB(sb),
- SBI_QUOTA_NEED_REPAIR);
- return err;
- }
- }
- }
- return 0;
- }
- static int f2fs_quota_sync_file(struct f2fs_sb_info *sbi, int type)
- {
- struct quota_info *dqopt = sb_dqopt(sbi->sb);
- struct address_space *mapping = dqopt->files[type]->i_mapping;
- int ret = 0;
- ret = dquot_writeback_dquots(sbi->sb, type);
- if (ret)
- goto out;
- ret = filemap_fdatawrite(mapping);
- if (ret)
- goto out;
- /* if we are using journalled quota */
- if (is_journalled_quota(sbi))
- goto out;
- ret = filemap_fdatawait(mapping);
- truncate_inode_pages(&dqopt->files[type]->i_data, 0);
- out:
- if (ret)
- set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
- return ret;
- }
- int f2fs_quota_sync(struct super_block *sb, int type)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- struct quota_info *dqopt = sb_dqopt(sb);
- int cnt;
- int ret = 0;
- /*
- * Now when everything is written we can discard the pagecache so
- * that userspace sees the changes.
- */
- for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
- if (type != -1 && cnt != type)
- continue;
- if (!sb_has_quota_active(sb, cnt))
- continue;
- if (!f2fs_sb_has_quota_ino(sbi))
- inode_lock(dqopt->files[cnt]);
- /*
- * do_quotactl
- * f2fs_quota_sync
- * f2fs_down_read(quota_sem)
- * dquot_writeback_dquots()
- * f2fs_dquot_commit
- * block_operation
- * f2fs_down_read(quota_sem)
- */
- f2fs_lock_op(sbi);
- f2fs_down_read(&sbi->quota_sem);
- ret = f2fs_quota_sync_file(sbi, cnt);
- f2fs_up_read(&sbi->quota_sem);
- f2fs_unlock_op(sbi);
- if (!f2fs_sb_has_quota_ino(sbi))
- inode_unlock(dqopt->files[cnt]);
- if (ret)
- break;
- }
- return ret;
- }
- static int f2fs_quota_on(struct super_block *sb, int type, int format_id,
- const struct path *path)
- {
- struct inode *inode;
- int err;
- /* if quota sysfile exists, deny enabling quota with specific file */
- if (f2fs_sb_has_quota_ino(F2FS_SB(sb))) {
- f2fs_err(F2FS_SB(sb), "quota sysfile already exists");
- return -EBUSY;
- }
- err = f2fs_quota_sync(sb, type);
- if (err)
- return err;
- err = dquot_quota_on(sb, type, format_id, path);
- if (err)
- return err;
- inode = d_inode(path->dentry);
- inode_lock(inode);
- F2FS_I(inode)->i_flags |= F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL;
- f2fs_set_inode_flags(inode);
- inode_unlock(inode);
- f2fs_mark_inode_dirty_sync(inode, false);
- return 0;
- }
- static int __f2fs_quota_off(struct super_block *sb, int type)
- {
- struct inode *inode = sb_dqopt(sb)->files[type];
- int err;
- if (!inode || !igrab(inode))
- return dquot_quota_off(sb, type);
- err = f2fs_quota_sync(sb, type);
- if (err)
- goto out_put;
- err = dquot_quota_off(sb, type);
- if (err || f2fs_sb_has_quota_ino(F2FS_SB(sb)))
- goto out_put;
- inode_lock(inode);
- F2FS_I(inode)->i_flags &= ~(F2FS_NOATIME_FL | F2FS_IMMUTABLE_FL);
- f2fs_set_inode_flags(inode);
- inode_unlock(inode);
- f2fs_mark_inode_dirty_sync(inode, false);
- out_put:
- iput(inode);
- return err;
- }
- static int f2fs_quota_off(struct super_block *sb, int type)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- int err;
- err = __f2fs_quota_off(sb, type);
- /*
- * quotactl can shutdown journalled quota, result in inconsistence
- * between quota record and fs data by following updates, tag the
- * flag to let fsck be aware of it.
- */
- if (is_journalled_quota(sbi))
- set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
- return err;
- }
- void f2fs_quota_off_umount(struct super_block *sb)
- {
- int type;
- int err;
- for (type = 0; type < MAXQUOTAS; type++) {
- err = __f2fs_quota_off(sb, type);
- if (err) {
- int ret = dquot_quota_off(sb, type);
- f2fs_err(F2FS_SB(sb), "Fail to turn off disk quota (type: %d, err: %d, ret:%d), Please run fsck to fix it.",
- type, err, ret);
- set_sbi_flag(F2FS_SB(sb), SBI_QUOTA_NEED_REPAIR);
- }
- }
- /*
- * In case of checkpoint=disable, we must flush quota blocks.
- * This can cause NULL exception for node_inode in end_io, since
- * put_super already dropped it.
- */
- sync_filesystem(sb);
- }
- static void f2fs_truncate_quota_inode_pages(struct super_block *sb)
- {
- struct quota_info *dqopt = sb_dqopt(sb);
- int type;
- for (type = 0; type < MAXQUOTAS; type++) {
- if (!dqopt->files[type])
- continue;
- f2fs_inode_synced(dqopt->files[type]);
- }
- }
- static int f2fs_dquot_commit(struct dquot *dquot)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
- int ret;
- f2fs_down_read_nested(&sbi->quota_sem, SINGLE_DEPTH_NESTING);
- ret = dquot_commit(dquot);
- if (ret < 0)
- set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
- f2fs_up_read(&sbi->quota_sem);
- return ret;
- }
- static int f2fs_dquot_acquire(struct dquot *dquot)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
- int ret;
- f2fs_down_read(&sbi->quota_sem);
- ret = dquot_acquire(dquot);
- if (ret < 0)
- set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
- f2fs_up_read(&sbi->quota_sem);
- return ret;
- }
- static int f2fs_dquot_release(struct dquot *dquot)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(dquot->dq_sb);
- int ret = dquot_release(dquot);
- if (ret < 0)
- set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
- return ret;
- }
- static int f2fs_dquot_mark_dquot_dirty(struct dquot *dquot)
- {
- struct super_block *sb = dquot->dq_sb;
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- int ret = dquot_mark_dquot_dirty(dquot);
- /* if we are using journalled quota */
- if (is_journalled_quota(sbi))
- set_sbi_flag(sbi, SBI_QUOTA_NEED_FLUSH);
- return ret;
- }
- static int f2fs_dquot_commit_info(struct super_block *sb, int type)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- int ret = dquot_commit_info(sb, type);
- if (ret < 0)
- set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
- return ret;
- }
- static int f2fs_get_projid(struct inode *inode, kprojid_t *projid)
- {
- *projid = F2FS_I(inode)->i_projid;
- return 0;
- }
- static const struct dquot_operations f2fs_quota_operations = {
- .get_reserved_space = f2fs_get_reserved_space,
- .write_dquot = f2fs_dquot_commit,
- .acquire_dquot = f2fs_dquot_acquire,
- .release_dquot = f2fs_dquot_release,
- .mark_dirty = f2fs_dquot_mark_dquot_dirty,
- .write_info = f2fs_dquot_commit_info,
- .alloc_dquot = dquot_alloc,
- .destroy_dquot = dquot_destroy,
- .get_projid = f2fs_get_projid,
- .get_next_id = dquot_get_next_id,
- };
- static const struct quotactl_ops f2fs_quotactl_ops = {
- .quota_on = f2fs_quota_on,
- .quota_off = f2fs_quota_off,
- .quota_sync = f2fs_quota_sync,
- .get_state = dquot_get_state,
- .set_info = dquot_set_dqinfo,
- .get_dqblk = dquot_get_dqblk,
- .set_dqblk = dquot_set_dqblk,
- .get_nextdqblk = dquot_get_next_dqblk,
- };
- #else
- int f2fs_dquot_initialize(struct inode *inode)
- {
- return 0;
- }
- int f2fs_quota_sync(struct super_block *sb, int type)
- {
- return 0;
- }
- void f2fs_quota_off_umount(struct super_block *sb)
- {
- }
- #endif
- static const struct super_operations f2fs_sops = {
- .alloc_inode = f2fs_alloc_inode,
- .free_inode = f2fs_free_inode,
- .drop_inode = f2fs_drop_inode,
- .write_inode = f2fs_write_inode,
- .dirty_inode = f2fs_dirty_inode,
- .show_options = f2fs_show_options,
- #ifdef CONFIG_QUOTA
- .quota_read = f2fs_quota_read,
- .quota_write = f2fs_quota_write,
- .get_dquots = f2fs_get_dquots,
- #endif
- .evict_inode = f2fs_evict_inode,
- .put_super = f2fs_put_super,
- .sync_fs = f2fs_sync_fs,
- .freeze_fs = f2fs_freeze,
- .unfreeze_fs = f2fs_unfreeze,
- .statfs = f2fs_statfs,
- .remount_fs = f2fs_remount,
- };
- #ifdef CONFIG_FS_ENCRYPTION
- static int f2fs_get_context(struct inode *inode, void *ctx, size_t len)
- {
- return f2fs_getxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
- F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
- ctx, len, NULL);
- }
- static int f2fs_set_context(struct inode *inode, const void *ctx, size_t len,
- void *fs_data)
- {
- struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
- /*
- * Encrypting the root directory is not allowed because fsck
- * expects lost+found directory to exist and remain unencrypted
- * if LOST_FOUND feature is enabled.
- *
- */
- if (f2fs_sb_has_lost_found(sbi) &&
- inode->i_ino == F2FS_ROOT_INO(sbi))
- return -EPERM;
- return f2fs_setxattr(inode, F2FS_XATTR_INDEX_ENCRYPTION,
- F2FS_XATTR_NAME_ENCRYPTION_CONTEXT,
- ctx, len, fs_data, XATTR_CREATE);
- }
- static const union fscrypt_policy *f2fs_get_dummy_policy(struct super_block *sb)
- {
- return F2FS_OPTION(F2FS_SB(sb)).dummy_enc_policy.policy;
- }
- static bool f2fs_has_stable_inodes(struct super_block *sb)
- {
- return true;
- }
- static void f2fs_get_ino_and_lblk_bits(struct super_block *sb,
- int *ino_bits_ret, int *lblk_bits_ret)
- {
- *ino_bits_ret = 8 * sizeof(nid_t);
- *lblk_bits_ret = 8 * sizeof(block_t);
- }
- static struct block_device **f2fs_get_devices(struct super_block *sb,
- unsigned int *num_devs)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- struct block_device **devs;
- int i;
- if (!f2fs_is_multi_device(sbi))
- return NULL;
- devs = kmalloc_array(sbi->s_ndevs, sizeof(*devs), GFP_KERNEL);
- if (!devs)
- return ERR_PTR(-ENOMEM);
- for (i = 0; i < sbi->s_ndevs; i++)
- devs[i] = FDEV(i).bdev;
- *num_devs = sbi->s_ndevs;
- return devs;
- }
- static const struct fscrypt_operations f2fs_cryptops = {
- .flags = FS_CFLG_SUPPORTS_SUBBLOCK_DATA_UNITS,
- .key_prefix = "f2fs:",
- .get_context = f2fs_get_context,
- .set_context = f2fs_set_context,
- .get_dummy_policy = f2fs_get_dummy_policy,
- .empty_dir = f2fs_empty_dir,
- .has_stable_inodes = f2fs_has_stable_inodes,
- .get_ino_and_lblk_bits = f2fs_get_ino_and_lblk_bits,
- .get_devices = f2fs_get_devices,
- };
- #endif
- static struct inode *f2fs_nfs_get_inode(struct super_block *sb,
- u64 ino, u32 generation)
- {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- struct inode *inode;
- if (f2fs_check_nid_range(sbi, ino))
- return ERR_PTR(-ESTALE);
- /*
- * f2fs_iget isn't quite right if the inode is currently unallocated!
- * However f2fs_iget currently does appropriate checks to handle stale
- * inodes so everything is OK.
- */
- inode = f2fs_iget(sb, ino);
- if (IS_ERR(inode))
- return ERR_CAST(inode);
- if (unlikely(generation && inode->i_generation != generation)) {
- /* we didn't find the right inode.. */
- iput(inode);
- return ERR_PTR(-ESTALE);
- }
- return inode;
- }
- static struct dentry *f2fs_fh_to_dentry(struct super_block *sb, struct fid *fid,
- int fh_len, int fh_type)
- {
- return generic_fh_to_dentry(sb, fid, fh_len, fh_type,
- f2fs_nfs_get_inode);
- }
- static struct dentry *f2fs_fh_to_parent(struct super_block *sb, struct fid *fid,
- int fh_len, int fh_type)
- {
- return generic_fh_to_parent(sb, fid, fh_len, fh_type,
- f2fs_nfs_get_inode);
- }
- static const struct export_operations f2fs_export_ops = {
- .fh_to_dentry = f2fs_fh_to_dentry,
- .fh_to_parent = f2fs_fh_to_parent,
- .get_parent = f2fs_get_parent,
- };
- loff_t max_file_blocks(struct inode *inode)
- {
- loff_t result = 0;
- loff_t leaf_count;
- /*
- * note: previously, result is equal to (DEF_ADDRS_PER_INODE -
- * DEFAULT_INLINE_XATTR_ADDRS), but now f2fs try to reserve more
- * space in inode.i_addr, it will be more safe to reassign
- * result as zero.
- */
- if (inode && f2fs_compressed_file(inode))
- leaf_count = ADDRS_PER_BLOCK(inode);
- else
- leaf_count = DEF_ADDRS_PER_BLOCK;
- /* two direct node blocks */
- result += (leaf_count * 2);
- /* two indirect node blocks */
- leaf_count *= NIDS_PER_BLOCK;
- result += (leaf_count * 2);
- /* one double indirect node block */
- leaf_count *= NIDS_PER_BLOCK;
- result += leaf_count;
- /*
- * For compatibility with FSCRYPT_POLICY_FLAG_IV_INO_LBLK_{64,32} with
- * a 4K crypto data unit, we must restrict the max filesize to what can
- * fit within U32_MAX + 1 data units.
- */
- result = min(result, (((loff_t)U32_MAX + 1) * 4096) >> F2FS_BLKSIZE_BITS);
- return result;
- }
- static int __f2fs_commit_super(struct buffer_head *bh,
- struct f2fs_super_block *super)
- {
- lock_buffer(bh);
- if (super)
- memcpy(bh->b_data + F2FS_SUPER_OFFSET, super, sizeof(*super));
- set_buffer_dirty(bh);
- unlock_buffer(bh);
- /* it's rare case, we can do fua all the time */
- return __sync_dirty_buffer(bh, REQ_SYNC | REQ_PREFLUSH | REQ_FUA);
- }
- static inline bool sanity_check_area_boundary(struct f2fs_sb_info *sbi,
- struct buffer_head *bh)
- {
- struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
- (bh->b_data + F2FS_SUPER_OFFSET);
- struct super_block *sb = sbi->sb;
- u32 segment0_blkaddr = le32_to_cpu(raw_super->segment0_blkaddr);
- u32 cp_blkaddr = le32_to_cpu(raw_super->cp_blkaddr);
- u32 sit_blkaddr = le32_to_cpu(raw_super->sit_blkaddr);
- u32 nat_blkaddr = le32_to_cpu(raw_super->nat_blkaddr);
- u32 ssa_blkaddr = le32_to_cpu(raw_super->ssa_blkaddr);
- u32 main_blkaddr = le32_to_cpu(raw_super->main_blkaddr);
- u32 segment_count_ckpt = le32_to_cpu(raw_super->segment_count_ckpt);
- u32 segment_count_sit = le32_to_cpu(raw_super->segment_count_sit);
- u32 segment_count_nat = le32_to_cpu(raw_super->segment_count_nat);
- u32 segment_count_ssa = le32_to_cpu(raw_super->segment_count_ssa);
- u32 segment_count_main = le32_to_cpu(raw_super->segment_count_main);
- u32 segment_count = le32_to_cpu(raw_super->segment_count);
- u32 log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
- u64 main_end_blkaddr = main_blkaddr +
- (segment_count_main << log_blocks_per_seg);
- u64 seg_end_blkaddr = segment0_blkaddr +
- (segment_count << log_blocks_per_seg);
- if (segment0_blkaddr != cp_blkaddr) {
- f2fs_info(sbi, "Mismatch start address, segment0(%u) cp_blkaddr(%u)",
- segment0_blkaddr, cp_blkaddr);
- return true;
- }
- if (cp_blkaddr + (segment_count_ckpt << log_blocks_per_seg) !=
- sit_blkaddr) {
- f2fs_info(sbi, "Wrong CP boundary, start(%u) end(%u) blocks(%u)",
- cp_blkaddr, sit_blkaddr,
- segment_count_ckpt << log_blocks_per_seg);
- return true;
- }
- if (sit_blkaddr + (segment_count_sit << log_blocks_per_seg) !=
- nat_blkaddr) {
- f2fs_info(sbi, "Wrong SIT boundary, start(%u) end(%u) blocks(%u)",
- sit_blkaddr, nat_blkaddr,
- segment_count_sit << log_blocks_per_seg);
- return true;
- }
- if (nat_blkaddr + (segment_count_nat << log_blocks_per_seg) !=
- ssa_blkaddr) {
- f2fs_info(sbi, "Wrong NAT boundary, start(%u) end(%u) blocks(%u)",
- nat_blkaddr, ssa_blkaddr,
- segment_count_nat << log_blocks_per_seg);
- return true;
- }
- if (ssa_blkaddr + (segment_count_ssa << log_blocks_per_seg) !=
- main_blkaddr) {
- f2fs_info(sbi, "Wrong SSA boundary, start(%u) end(%u) blocks(%u)",
- ssa_blkaddr, main_blkaddr,
- segment_count_ssa << log_blocks_per_seg);
- return true;
- }
- if (main_end_blkaddr > seg_end_blkaddr) {
- f2fs_info(sbi, "Wrong MAIN_AREA boundary, start(%u) end(%llu) block(%u)",
- main_blkaddr, seg_end_blkaddr,
- segment_count_main << log_blocks_per_seg);
- return true;
- } else if (main_end_blkaddr < seg_end_blkaddr) {
- int err = 0;
- char *res;
- /* fix in-memory information all the time */
- raw_super->segment_count = cpu_to_le32((main_end_blkaddr -
- segment0_blkaddr) >> log_blocks_per_seg);
- if (f2fs_readonly(sb) || f2fs_hw_is_readonly(sbi)) {
- set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
- res = "internally";
- } else {
- err = __f2fs_commit_super(bh, NULL);
- res = err ? "failed" : "done";
- }
- f2fs_info(sbi, "Fix alignment : %s, start(%u) end(%llu) block(%u)",
- res, main_blkaddr, seg_end_blkaddr,
- segment_count_main << log_blocks_per_seg);
- if (err)
- return true;
- }
- return false;
- }
- static int sanity_check_raw_super(struct f2fs_sb_info *sbi,
- struct buffer_head *bh)
- {
- block_t segment_count, segs_per_sec, secs_per_zone, segment_count_main;
- block_t total_sections, blocks_per_seg;
- struct f2fs_super_block *raw_super = (struct f2fs_super_block *)
- (bh->b_data + F2FS_SUPER_OFFSET);
- size_t crc_offset = 0;
- __u32 crc = 0;
- if (le32_to_cpu(raw_super->magic) != F2FS_SUPER_MAGIC) {
- f2fs_info(sbi, "Magic Mismatch, valid(0x%x) - read(0x%x)",
- F2FS_SUPER_MAGIC, le32_to_cpu(raw_super->magic));
- return -EINVAL;
- }
- /* Check checksum_offset and crc in superblock */
- if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_SB_CHKSUM)) {
- crc_offset = le32_to_cpu(raw_super->checksum_offset);
- if (crc_offset !=
- offsetof(struct f2fs_super_block, crc)) {
- f2fs_info(sbi, "Invalid SB checksum offset: %zu",
- crc_offset);
- return -EFSCORRUPTED;
- }
- crc = le32_to_cpu(raw_super->crc);
- if (!f2fs_crc_valid(sbi, crc, raw_super, crc_offset)) {
- f2fs_info(sbi, "Invalid SB checksum value: %u", crc);
- return -EFSCORRUPTED;
- }
- }
- /* Currently, support only 4KB block size */
- if (le32_to_cpu(raw_super->log_blocksize) != F2FS_BLKSIZE_BITS) {
- f2fs_info(sbi, "Invalid log_blocksize (%u), supports only %u",
- le32_to_cpu(raw_super->log_blocksize),
- F2FS_BLKSIZE_BITS);
- return -EFSCORRUPTED;
- }
- /* check log blocks per segment */
- if (le32_to_cpu(raw_super->log_blocks_per_seg) != 9) {
- f2fs_info(sbi, "Invalid log blocks per segment (%u)",
- le32_to_cpu(raw_super->log_blocks_per_seg));
- return -EFSCORRUPTED;
- }
- /* Currently, support 512/1024/2048/4096/16K bytes sector size */
- if (le32_to_cpu(raw_super->log_sectorsize) >
- F2FS_MAX_LOG_SECTOR_SIZE ||
- le32_to_cpu(raw_super->log_sectorsize) <
- F2FS_MIN_LOG_SECTOR_SIZE) {
- f2fs_info(sbi, "Invalid log sectorsize (%u)",
- le32_to_cpu(raw_super->log_sectorsize));
- return -EFSCORRUPTED;
- }
- if (le32_to_cpu(raw_super->log_sectors_per_block) +
- le32_to_cpu(raw_super->log_sectorsize) !=
- F2FS_MAX_LOG_SECTOR_SIZE) {
- f2fs_info(sbi, "Invalid log sectors per block(%u) log sectorsize(%u)",
- le32_to_cpu(raw_super->log_sectors_per_block),
- le32_to_cpu(raw_super->log_sectorsize));
- return -EFSCORRUPTED;
- }
- segment_count = le32_to_cpu(raw_super->segment_count);
- segment_count_main = le32_to_cpu(raw_super->segment_count_main);
- segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
- secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
- total_sections = le32_to_cpu(raw_super->section_count);
- /* blocks_per_seg should be 512, given the above check */
- blocks_per_seg = BIT(le32_to_cpu(raw_super->log_blocks_per_seg));
- if (segment_count > F2FS_MAX_SEGMENT ||
- segment_count < F2FS_MIN_SEGMENTS) {
- f2fs_info(sbi, "Invalid segment count (%u)", segment_count);
- return -EFSCORRUPTED;
- }
- if (total_sections > segment_count_main || total_sections < 1 ||
- segs_per_sec > segment_count || !segs_per_sec) {
- f2fs_info(sbi, "Invalid segment/section count (%u, %u x %u)",
- segment_count, total_sections, segs_per_sec);
- return -EFSCORRUPTED;
- }
- if (segment_count_main != total_sections * segs_per_sec) {
- f2fs_info(sbi, "Invalid segment/section count (%u != %u * %u)",
- segment_count_main, total_sections, segs_per_sec);
- return -EFSCORRUPTED;
- }
- if ((segment_count / segs_per_sec) < total_sections) {
- f2fs_info(sbi, "Small segment_count (%u < %u * %u)",
- segment_count, segs_per_sec, total_sections);
- return -EFSCORRUPTED;
- }
- if (segment_count > (le64_to_cpu(raw_super->block_count) >> 9)) {
- f2fs_info(sbi, "Wrong segment_count / block_count (%u > %llu)",
- segment_count, le64_to_cpu(raw_super->block_count));
- return -EFSCORRUPTED;
- }
- if (RDEV(0).path[0]) {
- block_t dev_seg_count = le32_to_cpu(RDEV(0).total_segments);
- int i = 1;
- while (i < MAX_DEVICES && RDEV(i).path[0]) {
- dev_seg_count += le32_to_cpu(RDEV(i).total_segments);
- i++;
- }
- if (segment_count != dev_seg_count) {
- f2fs_info(sbi, "Segment count (%u) mismatch with total segments from devices (%u)",
- segment_count, dev_seg_count);
- return -EFSCORRUPTED;
- }
- } else {
- if (__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_BLKZONED) &&
- !bdev_is_zoned(sbi->sb->s_bdev)) {
- f2fs_info(sbi, "Zoned block device path is missing");
- return -EFSCORRUPTED;
- }
- }
- if (secs_per_zone > total_sections || !secs_per_zone) {
- f2fs_info(sbi, "Wrong secs_per_zone / total_sections (%u, %u)",
- secs_per_zone, total_sections);
- return -EFSCORRUPTED;
- }
- if (le32_to_cpu(raw_super->extension_count) > F2FS_MAX_EXTENSION ||
- raw_super->hot_ext_count > F2FS_MAX_EXTENSION ||
- (le32_to_cpu(raw_super->extension_count) +
- raw_super->hot_ext_count) > F2FS_MAX_EXTENSION) {
- f2fs_info(sbi, "Corrupted extension count (%u + %u > %u)",
- le32_to_cpu(raw_super->extension_count),
- raw_super->hot_ext_count,
- F2FS_MAX_EXTENSION);
- return -EFSCORRUPTED;
- }
- if (le32_to_cpu(raw_super->cp_payload) >=
- (blocks_per_seg - F2FS_CP_PACKS -
- NR_CURSEG_PERSIST_TYPE)) {
- f2fs_info(sbi, "Insane cp_payload (%u >= %u)",
- le32_to_cpu(raw_super->cp_payload),
- blocks_per_seg - F2FS_CP_PACKS -
- NR_CURSEG_PERSIST_TYPE);
- return -EFSCORRUPTED;
- }
- /* check reserved ino info */
- if (le32_to_cpu(raw_super->node_ino) != 1 ||
- le32_to_cpu(raw_super->meta_ino) != 2 ||
- le32_to_cpu(raw_super->root_ino) != 3) {
- f2fs_info(sbi, "Invalid Fs Meta Ino: node(%u) meta(%u) root(%u)",
- le32_to_cpu(raw_super->node_ino),
- le32_to_cpu(raw_super->meta_ino),
- le32_to_cpu(raw_super->root_ino));
- return -EFSCORRUPTED;
- }
- /* check CP/SIT/NAT/SSA/MAIN_AREA area boundary */
- if (sanity_check_area_boundary(sbi, bh))
- return -EFSCORRUPTED;
- return 0;
- }
- int f2fs_sanity_check_ckpt(struct f2fs_sb_info *sbi)
- {
- unsigned int total, fsmeta;
- struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
- struct f2fs_checkpoint *ckpt = F2FS_CKPT(sbi);
- unsigned int ovp_segments, reserved_segments;
- unsigned int main_segs, blocks_per_seg;
- unsigned int sit_segs, nat_segs;
- unsigned int sit_bitmap_size, nat_bitmap_size;
- unsigned int log_blocks_per_seg;
- unsigned int segment_count_main;
- unsigned int cp_pack_start_sum, cp_payload;
- block_t user_block_count, valid_user_blocks;
- block_t avail_node_count, valid_node_count;
- unsigned int nat_blocks, nat_bits_bytes, nat_bits_blocks;
- int i, j;
- total = le32_to_cpu(raw_super->segment_count);
- fsmeta = le32_to_cpu(raw_super->segment_count_ckpt);
- sit_segs = le32_to_cpu(raw_super->segment_count_sit);
- fsmeta += sit_segs;
- nat_segs = le32_to_cpu(raw_super->segment_count_nat);
- fsmeta += nat_segs;
- fsmeta += le32_to_cpu(ckpt->rsvd_segment_count);
- fsmeta += le32_to_cpu(raw_super->segment_count_ssa);
- if (unlikely(fsmeta >= total))
- return 1;
- ovp_segments = le32_to_cpu(ckpt->overprov_segment_count);
- reserved_segments = le32_to_cpu(ckpt->rsvd_segment_count);
- if (!f2fs_sb_has_readonly(sbi) &&
- unlikely(fsmeta < F2FS_MIN_META_SEGMENTS ||
- ovp_segments == 0 || reserved_segments == 0)) {
- f2fs_err(sbi, "Wrong layout: check mkfs.f2fs version");
- return 1;
- }
- user_block_count = le64_to_cpu(ckpt->user_block_count);
- segment_count_main = le32_to_cpu(raw_super->segment_count_main) +
- (f2fs_sb_has_readonly(sbi) ? 1 : 0);
- log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
- if (!user_block_count || user_block_count >=
- segment_count_main << log_blocks_per_seg) {
- f2fs_err(sbi, "Wrong user_block_count: %u",
- user_block_count);
- return 1;
- }
- valid_user_blocks = le64_to_cpu(ckpt->valid_block_count);
- if (valid_user_blocks > user_block_count) {
- f2fs_err(sbi, "Wrong valid_user_blocks: %u, user_block_count: %u",
- valid_user_blocks, user_block_count);
- return 1;
- }
- valid_node_count = le32_to_cpu(ckpt->valid_node_count);
- avail_node_count = sbi->total_node_count - F2FS_RESERVED_NODE_NUM;
- if (valid_node_count > avail_node_count) {
- f2fs_err(sbi, "Wrong valid_node_count: %u, avail_node_count: %u",
- valid_node_count, avail_node_count);
- return 1;
- }
- main_segs = le32_to_cpu(raw_super->segment_count_main);
- blocks_per_seg = sbi->blocks_per_seg;
- for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
- if (le32_to_cpu(ckpt->cur_node_segno[i]) >= main_segs ||
- le16_to_cpu(ckpt->cur_node_blkoff[i]) >= blocks_per_seg)
- return 1;
- if (f2fs_sb_has_readonly(sbi))
- goto check_data;
- for (j = i + 1; j < NR_CURSEG_NODE_TYPE; j++) {
- if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
- le32_to_cpu(ckpt->cur_node_segno[j])) {
- f2fs_err(sbi, "Node segment (%u, %u) has the same segno: %u",
- i, j,
- le32_to_cpu(ckpt->cur_node_segno[i]));
- return 1;
- }
- }
- }
- check_data:
- for (i = 0; i < NR_CURSEG_DATA_TYPE; i++) {
- if (le32_to_cpu(ckpt->cur_data_segno[i]) >= main_segs ||
- le16_to_cpu(ckpt->cur_data_blkoff[i]) >= blocks_per_seg)
- return 1;
- if (f2fs_sb_has_readonly(sbi))
- goto skip_cross;
- for (j = i + 1; j < NR_CURSEG_DATA_TYPE; j++) {
- if (le32_to_cpu(ckpt->cur_data_segno[i]) ==
- le32_to_cpu(ckpt->cur_data_segno[j])) {
- f2fs_err(sbi, "Data segment (%u, %u) has the same segno: %u",
- i, j,
- le32_to_cpu(ckpt->cur_data_segno[i]));
- return 1;
- }
- }
- }
- for (i = 0; i < NR_CURSEG_NODE_TYPE; i++) {
- for (j = 0; j < NR_CURSEG_DATA_TYPE; j++) {
- if (le32_to_cpu(ckpt->cur_node_segno[i]) ==
- le32_to_cpu(ckpt->cur_data_segno[j])) {
- f2fs_err(sbi, "Node segment (%u) and Data segment (%u) has the same segno: %u",
- i, j,
- le32_to_cpu(ckpt->cur_node_segno[i]));
- return 1;
- }
- }
- }
- skip_cross:
- sit_bitmap_size = le32_to_cpu(ckpt->sit_ver_bitmap_bytesize);
- nat_bitmap_size = le32_to_cpu(ckpt->nat_ver_bitmap_bytesize);
- if (sit_bitmap_size != ((sit_segs / 2) << log_blocks_per_seg) / 8 ||
- nat_bitmap_size != ((nat_segs / 2) << log_blocks_per_seg) / 8) {
- f2fs_err(sbi, "Wrong bitmap size: sit: %u, nat:%u",
- sit_bitmap_size, nat_bitmap_size);
- return 1;
- }
- cp_pack_start_sum = __start_sum_addr(sbi);
- cp_payload = __cp_payload(sbi);
- if (cp_pack_start_sum < cp_payload + 1 ||
- cp_pack_start_sum > blocks_per_seg - 1 -
- NR_CURSEG_PERSIST_TYPE) {
- f2fs_err(sbi, "Wrong cp_pack_start_sum: %u",
- cp_pack_start_sum);
- return 1;
- }
- if (__is_set_ckpt_flags(ckpt, CP_LARGE_NAT_BITMAP_FLAG) &&
- le32_to_cpu(ckpt->checksum_offset) != CP_MIN_CHKSUM_OFFSET) {
- f2fs_warn(sbi, "using deprecated layout of large_nat_bitmap, "
- "please run fsck v1.13.0 or higher to repair, chksum_offset: %u, "
- "fixed with patch: \"f2fs-tools: relocate chksum_offset for large_nat_bitmap feature\"",
- le32_to_cpu(ckpt->checksum_offset));
- return 1;
- }
- nat_blocks = nat_segs << log_blocks_per_seg;
- nat_bits_bytes = nat_blocks / BITS_PER_BYTE;
- nat_bits_blocks = F2FS_BLK_ALIGN((nat_bits_bytes << 1) + 8);
- if (__is_set_ckpt_flags(ckpt, CP_NAT_BITS_FLAG) &&
- (cp_payload + F2FS_CP_PACKS +
- NR_CURSEG_PERSIST_TYPE + nat_bits_blocks >= blocks_per_seg)) {
- f2fs_warn(sbi, "Insane cp_payload: %u, nat_bits_blocks: %u)",
- cp_payload, nat_bits_blocks);
- return 1;
- }
- if (unlikely(f2fs_cp_error(sbi))) {
- f2fs_err(sbi, "A bug case: need to run fsck");
- return 1;
- }
- return 0;
- }
- static void init_sb_info(struct f2fs_sb_info *sbi)
- {
- struct f2fs_super_block *raw_super = sbi->raw_super;
- int i;
- sbi->log_sectors_per_block =
- le32_to_cpu(raw_super->log_sectors_per_block);
- sbi->log_blocksize = le32_to_cpu(raw_super->log_blocksize);
- sbi->blocksize = BIT(sbi->log_blocksize);
- sbi->log_blocks_per_seg = le32_to_cpu(raw_super->log_blocks_per_seg);
- sbi->blocks_per_seg = BIT(sbi->log_blocks_per_seg);
- sbi->segs_per_sec = le32_to_cpu(raw_super->segs_per_sec);
- sbi->secs_per_zone = le32_to_cpu(raw_super->secs_per_zone);
- sbi->total_sections = le32_to_cpu(raw_super->section_count);
- sbi->total_node_count =
- (le32_to_cpu(raw_super->segment_count_nat) / 2)
- * sbi->blocks_per_seg * NAT_ENTRY_PER_BLOCK;
- F2FS_ROOT_INO(sbi) = le32_to_cpu(raw_super->root_ino);
- F2FS_NODE_INO(sbi) = le32_to_cpu(raw_super->node_ino);
- F2FS_META_INO(sbi) = le32_to_cpu(raw_super->meta_ino);
- sbi->cur_victim_sec = NULL_SECNO;
- sbi->gc_mode = GC_NORMAL;
- sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
- sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
- sbi->max_victim_search = DEF_MAX_VICTIM_SEARCH;
- sbi->migration_granularity = sbi->segs_per_sec;
- sbi->seq_file_ra_mul = MIN_RA_MUL;
- sbi->max_fragment_chunk = DEF_FRAGMENT_SIZE;
- sbi->max_fragment_hole = DEF_FRAGMENT_SIZE;
- spin_lock_init(&sbi->gc_remaining_trials_lock);
- atomic64_set(&sbi->current_atomic_write, 0);
- sbi->dir_level = DEF_DIR_LEVEL;
- sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
- sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL;
- sbi->interval_time[DISCARD_TIME] = DEF_IDLE_INTERVAL;
- sbi->interval_time[GC_TIME] = DEF_IDLE_INTERVAL;
- sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_INTERVAL;
- sbi->interval_time[UMOUNT_DISCARD_TIMEOUT] =
- DEF_UMOUNT_DISCARD_TIMEOUT;
- clear_sbi_flag(sbi, SBI_NEED_FSCK);
- for (i = 0; i < NR_COUNT_TYPE; i++)
- atomic_set(&sbi->nr_pages[i], 0);
- for (i = 0; i < META; i++)
- atomic_set(&sbi->wb_sync_req[i], 0);
- INIT_LIST_HEAD(&sbi->s_list);
- mutex_init(&sbi->umount_mutex);
- init_f2fs_rwsem(&sbi->io_order_lock);
- spin_lock_init(&sbi->cp_lock);
- sbi->dirty_device = 0;
- spin_lock_init(&sbi->dev_lock);
- init_f2fs_rwsem(&sbi->sb_lock);
- init_f2fs_rwsem(&sbi->pin_sem);
- }
- static int init_percpu_info(struct f2fs_sb_info *sbi)
- {
- int err;
- err = percpu_counter_init(&sbi->alloc_valid_block_count, 0, GFP_KERNEL);
- if (err)
- return err;
- err = percpu_counter_init(&sbi->rf_node_block_count, 0, GFP_KERNEL);
- if (err)
- goto err_valid_block;
- err = percpu_counter_init(&sbi->total_valid_inode_count, 0,
- GFP_KERNEL);
- if (err)
- goto err_node_block;
- return 0;
- err_node_block:
- percpu_counter_destroy(&sbi->rf_node_block_count);
- err_valid_block:
- percpu_counter_destroy(&sbi->alloc_valid_block_count);
- return err;
- }
- #ifdef CONFIG_BLK_DEV_ZONED
- struct f2fs_report_zones_args {
- struct f2fs_sb_info *sbi;
- struct f2fs_dev_info *dev;
- };
- static int f2fs_report_zone_cb(struct blk_zone *zone, unsigned int idx,
- void *data)
- {
- struct f2fs_report_zones_args *rz_args = data;
- block_t unusable_blocks = (zone->len - zone->capacity) >>
- F2FS_LOG_SECTORS_PER_BLOCK;
- if (zone->type == BLK_ZONE_TYPE_CONVENTIONAL)
- return 0;
- set_bit(idx, rz_args->dev->blkz_seq);
- if (!rz_args->sbi->unusable_blocks_per_sec) {
- rz_args->sbi->unusable_blocks_per_sec = unusable_blocks;
- return 0;
- }
- if (rz_args->sbi->unusable_blocks_per_sec != unusable_blocks) {
- f2fs_err(rz_args->sbi, "F2FS supports single zone capacity\n");
- return -EINVAL;
- }
- return 0;
- }
- static int init_blkz_info(struct f2fs_sb_info *sbi, int devi)
- {
- struct block_device *bdev = FDEV(devi).bdev;
- sector_t nr_sectors = bdev_nr_sectors(bdev);
- struct f2fs_report_zones_args rep_zone_arg;
- u64 zone_sectors;
- int ret;
- if (!f2fs_sb_has_blkzoned(sbi))
- return 0;
- zone_sectors = bdev_zone_sectors(bdev);
- if (!is_power_of_2(zone_sectors)) {
- f2fs_err(sbi, "F2FS does not support non power of 2 zone sizes\n");
- return -EINVAL;
- }
- if (sbi->blocks_per_blkz && sbi->blocks_per_blkz !=
- SECTOR_TO_BLOCK(zone_sectors))
- return -EINVAL;
- sbi->blocks_per_blkz = SECTOR_TO_BLOCK(zone_sectors);
- FDEV(devi).nr_blkz = div_u64(SECTOR_TO_BLOCK(nr_sectors),
- sbi->blocks_per_blkz);
- if (nr_sectors & (zone_sectors - 1))
- FDEV(devi).nr_blkz++;
- FDEV(devi).blkz_seq = f2fs_kvzalloc(sbi,
- BITS_TO_LONGS(FDEV(devi).nr_blkz)
- * sizeof(unsigned long),
- GFP_KERNEL);
- if (!FDEV(devi).blkz_seq)
- return -ENOMEM;
- rep_zone_arg.sbi = sbi;
- rep_zone_arg.dev = &FDEV(devi);
- ret = blkdev_report_zones(bdev, 0, BLK_ALL_ZONES, f2fs_report_zone_cb,
- &rep_zone_arg);
- if (ret < 0)
- return ret;
- return 0;
- }
- #endif
- /*
- * Read f2fs raw super block.
- * Because we have two copies of super block, so read both of them
- * to get the first valid one. If any one of them is broken, we pass
- * them recovery flag back to the caller.
- */
- static int read_raw_super_block(struct f2fs_sb_info *sbi,
- struct f2fs_super_block **raw_super,
- int *valid_super_block, int *recovery)
- {
- struct super_block *sb = sbi->sb;
- int block;
- struct buffer_head *bh;
- struct f2fs_super_block *super;
- int err = 0;
- super = kzalloc(sizeof(struct f2fs_super_block), GFP_KERNEL);
- if (!super)
- return -ENOMEM;
- for (block = 0; block < 2; block++) {
- bh = sb_bread(sb, block);
- if (!bh) {
- f2fs_err(sbi, "Unable to read %dth superblock",
- block + 1);
- err = -EIO;
- *recovery = 1;
- continue;
- }
- /* sanity checking of raw super */
- err = sanity_check_raw_super(sbi, bh);
- if (err) {
- f2fs_err(sbi, "Can't find valid F2FS filesystem in %dth superblock",
- block + 1);
- brelse(bh);
- *recovery = 1;
- continue;
- }
- if (!*raw_super) {
- memcpy(super, bh->b_data + F2FS_SUPER_OFFSET,
- sizeof(*super));
- *valid_super_block = block;
- *raw_super = super;
- }
- brelse(bh);
- }
- /* No valid superblock */
- if (!*raw_super)
- kfree(super);
- else
- err = 0;
- return err;
- }
- int f2fs_commit_super(struct f2fs_sb_info *sbi, bool recover)
- {
- struct buffer_head *bh;
- __u32 crc = 0;
- int err;
- if ((recover && f2fs_readonly(sbi->sb)) ||
- f2fs_hw_is_readonly(sbi)) {
- set_sbi_flag(sbi, SBI_NEED_SB_WRITE);
- return -EROFS;
- }
- /* we should update superblock crc here */
- if (!recover && f2fs_sb_has_sb_chksum(sbi)) {
- crc = f2fs_crc32(sbi, F2FS_RAW_SUPER(sbi),
- offsetof(struct f2fs_super_block, crc));
- F2FS_RAW_SUPER(sbi)->crc = cpu_to_le32(crc);
- }
- /* write back-up superblock first */
- bh = sb_bread(sbi->sb, sbi->valid_super_block ? 0 : 1);
- if (!bh)
- return -EIO;
- err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
- brelse(bh);
- /* if we are in recovery path, skip writing valid superblock */
- if (recover || err)
- return err;
- /* write current valid superblock */
- bh = sb_bread(sbi->sb, sbi->valid_super_block);
- if (!bh)
- return -EIO;
- err = __f2fs_commit_super(bh, F2FS_RAW_SUPER(sbi));
- brelse(bh);
- return err;
- }
- void f2fs_handle_stop(struct f2fs_sb_info *sbi, unsigned char reason)
- {
- struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
- int err;
- f2fs_down_write(&sbi->sb_lock);
- if (raw_super->s_stop_reason[reason] < GENMASK(BITS_PER_BYTE - 1, 0))
- raw_super->s_stop_reason[reason]++;
- err = f2fs_commit_super(sbi, false);
- if (err)
- f2fs_err(sbi, "f2fs_commit_super fails to record reason:%u err:%d",
- reason, err);
- f2fs_up_write(&sbi->sb_lock);
- }
- void f2fs_save_errors(struct f2fs_sb_info *sbi, unsigned char flag)
- {
- spin_lock(&sbi->error_lock);
- if (!test_bit(flag, (unsigned long *)sbi->errors)) {
- set_bit(flag, (unsigned long *)sbi->errors);
- sbi->error_dirty = true;
- }
- spin_unlock(&sbi->error_lock);
- }
- static bool f2fs_update_errors(struct f2fs_sb_info *sbi)
- {
- bool need_update = false;
- spin_lock(&sbi->error_lock);
- if (sbi->error_dirty) {
- memcpy(F2FS_RAW_SUPER(sbi)->s_errors, sbi->errors,
- MAX_F2FS_ERRORS);
- sbi->error_dirty = false;
- need_update = true;
- }
- spin_unlock(&sbi->error_lock);
- return need_update;
- }
- void f2fs_handle_error(struct f2fs_sb_info *sbi, unsigned char error)
- {
- int err;
- f2fs_save_errors(sbi, error);
- f2fs_down_write(&sbi->sb_lock);
- if (!f2fs_update_errors(sbi))
- goto out_unlock;
- err = f2fs_commit_super(sbi, false);
- if (err)
- f2fs_err(sbi, "f2fs_commit_super fails to record errors:%u, err:%d",
- error, err);
- out_unlock:
- f2fs_up_write(&sbi->sb_lock);
- }
- static int f2fs_scan_devices(struct f2fs_sb_info *sbi)
- {
- struct f2fs_super_block *raw_super = F2FS_RAW_SUPER(sbi);
- unsigned int max_devices = MAX_DEVICES;
- unsigned int logical_blksize;
- int i;
- /* Initialize single device information */
- if (!RDEV(0).path[0]) {
- if (!bdev_is_zoned(sbi->sb->s_bdev))
- return 0;
- max_devices = 1;
- }
- /*
- * Initialize multiple devices information, or single
- * zoned block device information.
- */
- sbi->devs = f2fs_kzalloc(sbi,
- array_size(max_devices,
- sizeof(struct f2fs_dev_info)),
- GFP_KERNEL);
- if (!sbi->devs)
- return -ENOMEM;
- logical_blksize = bdev_logical_block_size(sbi->sb->s_bdev);
- sbi->aligned_blksize = true;
- for (i = 0; i < max_devices; i++) {
- if (i > 0 && !RDEV(i).path[0])
- break;
- if (max_devices == 1) {
- /* Single zoned block device mount */
- FDEV(0).bdev =
- blkdev_get_by_dev(sbi->sb->s_bdev->bd_dev,
- sbi->sb->s_mode, sbi->sb->s_type);
- } else {
- /* Multi-device mount */
- memcpy(FDEV(i).path, RDEV(i).path, MAX_PATH_LEN);
- FDEV(i).total_segments =
- le32_to_cpu(RDEV(i).total_segments);
- if (i == 0) {
- FDEV(i).start_blk = 0;
- FDEV(i).end_blk = FDEV(i).start_blk +
- (FDEV(i).total_segments <<
- sbi->log_blocks_per_seg) - 1 +
- le32_to_cpu(raw_super->segment0_blkaddr);
- } else {
- FDEV(i).start_blk = FDEV(i - 1).end_blk + 1;
- FDEV(i).end_blk = FDEV(i).start_blk +
- (FDEV(i).total_segments <<
- sbi->log_blocks_per_seg) - 1;
- }
- FDEV(i).bdev = blkdev_get_by_path(FDEV(i).path,
- sbi->sb->s_mode, sbi->sb->s_type);
- }
- if (IS_ERR(FDEV(i).bdev))
- return PTR_ERR(FDEV(i).bdev);
- /* to release errored devices */
- sbi->s_ndevs = i + 1;
- if (logical_blksize != bdev_logical_block_size(FDEV(i).bdev))
- sbi->aligned_blksize = false;
- #ifdef CONFIG_BLK_DEV_ZONED
- if (bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HM &&
- !f2fs_sb_has_blkzoned(sbi)) {
- f2fs_err(sbi, "Zoned block device feature not enabled");
- return -EINVAL;
- }
- if (bdev_zoned_model(FDEV(i).bdev) != BLK_ZONED_NONE) {
- if (init_blkz_info(sbi, i)) {
- f2fs_err(sbi, "Failed to initialize F2FS blkzone information");
- return -EINVAL;
- }
- if (max_devices == 1)
- break;
- f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x (zone: %s)",
- i, FDEV(i).path,
- FDEV(i).total_segments,
- FDEV(i).start_blk, FDEV(i).end_blk,
- bdev_zoned_model(FDEV(i).bdev) == BLK_ZONED_HA ?
- "Host-aware" : "Host-managed");
- continue;
- }
- #endif
- f2fs_info(sbi, "Mount Device [%2d]: %20s, %8u, %8x - %8x",
- i, FDEV(i).path,
- FDEV(i).total_segments,
- FDEV(i).start_blk, FDEV(i).end_blk);
- }
- f2fs_info(sbi,
- "IO Block Size: %8ld KB", F2FS_IO_SIZE_KB(sbi));
- return 0;
- }
- static int f2fs_setup_casefold(struct f2fs_sb_info *sbi)
- {
- #if IS_ENABLED(CONFIG_UNICODE)
- if (f2fs_sb_has_casefold(sbi) && !sbi->sb->s_encoding) {
- const struct f2fs_sb_encodings *encoding_info;
- struct unicode_map *encoding;
- __u16 encoding_flags;
- encoding_info = f2fs_sb_read_encoding(sbi->raw_super);
- if (!encoding_info) {
- f2fs_err(sbi,
- "Encoding requested by superblock is unknown");
- return -EINVAL;
- }
- encoding_flags = le16_to_cpu(sbi->raw_super->s_encoding_flags);
- encoding = utf8_load(encoding_info->version);
- if (IS_ERR(encoding)) {
- f2fs_err(sbi,
- "can't mount with superblock charset: %s-%u.%u.%u "
- "not supported by the kernel. flags: 0x%x.",
- encoding_info->name,
- unicode_major(encoding_info->version),
- unicode_minor(encoding_info->version),
- unicode_rev(encoding_info->version),
- encoding_flags);
- return PTR_ERR(encoding);
- }
- f2fs_info(sbi, "Using encoding defined by superblock: "
- "%s-%u.%u.%u with flags 0x%hx", encoding_info->name,
- unicode_major(encoding_info->version),
- unicode_minor(encoding_info->version),
- unicode_rev(encoding_info->version),
- encoding_flags);
- sbi->sb->s_encoding = encoding;
- sbi->sb->s_encoding_flags = encoding_flags;
- }
- #else
- if (f2fs_sb_has_casefold(sbi)) {
- f2fs_err(sbi, "Filesystem with casefold feature cannot be mounted without CONFIG_UNICODE");
- return -EINVAL;
- }
- #endif
- return 0;
- }
- static void f2fs_tuning_parameters(struct f2fs_sb_info *sbi)
- {
- /* adjust parameters according to the volume size */
- if (MAIN_SEGS(sbi) <= SMALL_VOLUME_SEGMENTS) {
- if (f2fs_block_unit_discard(sbi))
- SM_I(sbi)->dcc_info->discard_granularity =
- MIN_DISCARD_GRANULARITY;
- if (!f2fs_lfs_mode(sbi))
- SM_I(sbi)->ipu_policy = BIT(F2FS_IPU_FORCE) |
- BIT(F2FS_IPU_HONOR_OPU_WRITE);
- }
- sbi->readdir_ra = true;
- }
- static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
- {
- struct f2fs_sb_info *sbi;
- struct f2fs_super_block *raw_super;
- struct inode *root;
- int err;
- bool skip_recovery = false, need_fsck = false;
- char *options = NULL;
- int recovery, i, valid_super_block;
- struct curseg_info *seg_i;
- int retry_cnt = 1;
- #ifdef CONFIG_QUOTA
- bool quota_enabled = false;
- #endif
- try_onemore:
- err = -EINVAL;
- raw_super = NULL;
- valid_super_block = -1;
- recovery = 0;
- /* allocate memory for f2fs-specific super block info */
- sbi = kzalloc(sizeof(struct f2fs_sb_info), GFP_KERNEL);
- if (!sbi)
- return -ENOMEM;
- sbi->sb = sb;
- /* initialize locks within allocated memory */
- init_f2fs_rwsem(&sbi->gc_lock);
- mutex_init(&sbi->writepages);
- init_f2fs_rwsem(&sbi->cp_global_sem);
- init_f2fs_rwsem(&sbi->node_write);
- init_f2fs_rwsem(&sbi->node_change);
- spin_lock_init(&sbi->stat_lock);
- init_f2fs_rwsem(&sbi->cp_rwsem);
- init_f2fs_rwsem(&sbi->quota_sem);
- init_waitqueue_head(&sbi->cp_wait);
- spin_lock_init(&sbi->error_lock);
- for (i = 0; i < NR_INODE_TYPE; i++) {
- INIT_LIST_HEAD(&sbi->inode_list[i]);
- spin_lock_init(&sbi->inode_lock[i]);
- }
- mutex_init(&sbi->flush_lock);
- /* Load the checksum driver */
- sbi->s_chksum_driver = crypto_alloc_shash("crc32", 0, 0);
- if (IS_ERR(sbi->s_chksum_driver)) {
- f2fs_err(sbi, "Cannot load crc32 driver.");
- err = PTR_ERR(sbi->s_chksum_driver);
- sbi->s_chksum_driver = NULL;
- goto free_sbi;
- }
- /* set a block size */
- if (unlikely(!sb_set_blocksize(sb, F2FS_BLKSIZE))) {
- f2fs_err(sbi, "unable to set blocksize");
- goto free_sbi;
- }
- err = read_raw_super_block(sbi, &raw_super, &valid_super_block,
- &recovery);
- if (err)
- goto free_sbi;
- sb->s_fs_info = sbi;
- sbi->raw_super = raw_super;
- memcpy(sbi->errors, raw_super->s_errors, MAX_F2FS_ERRORS);
- /* precompute checksum seed for metadata */
- if (f2fs_sb_has_inode_chksum(sbi))
- sbi->s_chksum_seed = f2fs_chksum(sbi, ~0, raw_super->uuid,
- sizeof(raw_super->uuid));
- default_options(sbi);
- /* parse mount options */
- options = kstrdup((const char *)data, GFP_KERNEL);
- if (data && !options) {
- err = -ENOMEM;
- goto free_sb_buf;
- }
- err = parse_options(sb, options, false);
- if (err)
- goto free_options;
- sb->s_maxbytes = max_file_blocks(NULL) <<
- le32_to_cpu(raw_super->log_blocksize);
- sb->s_max_links = F2FS_LINK_MAX;
- err = f2fs_setup_casefold(sbi);
- if (err)
- goto free_options;
- #ifdef CONFIG_QUOTA
- sb->dq_op = &f2fs_quota_operations;
- sb->s_qcop = &f2fs_quotactl_ops;
- sb->s_quota_types = QTYPE_MASK_USR | QTYPE_MASK_GRP | QTYPE_MASK_PRJ;
- if (f2fs_sb_has_quota_ino(sbi)) {
- for (i = 0; i < MAXQUOTAS; i++) {
- if (f2fs_qf_ino(sbi->sb, i))
- sbi->nquota_files++;
- }
- }
- #endif
- sb->s_op = &f2fs_sops;
- #ifdef CONFIG_FS_ENCRYPTION
- sb->s_cop = &f2fs_cryptops;
- #endif
- #ifdef CONFIG_FS_VERITY
- sb->s_vop = &f2fs_verityops;
- #endif
- sb->s_xattr = f2fs_xattr_handlers;
- sb->s_export_op = &f2fs_export_ops;
- sb->s_magic = F2FS_SUPER_MAGIC;
- sb->s_time_gran = 1;
- sb->s_flags = (sb->s_flags & ~SB_POSIXACL) |
- (test_opt(sbi, POSIX_ACL) ? SB_POSIXACL : 0);
- memcpy(&sb->s_uuid, raw_super->uuid, sizeof(raw_super->uuid));
- sb->s_iflags |= SB_I_CGROUPWB;
- /* init f2fs-specific super block info */
- sbi->valid_super_block = valid_super_block;
- /* disallow all the data/node/meta page writes */
- set_sbi_flag(sbi, SBI_POR_DOING);
- err = f2fs_init_write_merge_io(sbi);
- if (err)
- goto free_bio_info;
- init_sb_info(sbi);
- err = f2fs_init_iostat(sbi);
- if (err)
- goto free_bio_info;
- err = init_percpu_info(sbi);
- if (err)
- goto free_iostat;
- if (F2FS_IO_ALIGNED(sbi)) {
- sbi->write_io_dummy =
- mempool_create_page_pool(2 * (F2FS_IO_SIZE(sbi) - 1), 0);
- if (!sbi->write_io_dummy) {
- err = -ENOMEM;
- goto free_percpu;
- }
- }
- /* init per sbi slab cache */
- err = f2fs_init_xattr_caches(sbi);
- if (err)
- goto free_io_dummy;
- err = f2fs_init_page_array_cache(sbi);
- if (err)
- goto free_xattr_cache;
- /* get an inode for meta space */
- sbi->meta_inode = f2fs_iget(sb, F2FS_META_INO(sbi));
- if (IS_ERR(sbi->meta_inode)) {
- f2fs_err(sbi, "Failed to read F2FS meta data inode");
- err = PTR_ERR(sbi->meta_inode);
- goto free_page_array_cache;
- }
- err = f2fs_get_valid_checkpoint(sbi);
- if (err) {
- f2fs_err(sbi, "Failed to get valid F2FS checkpoint");
- goto free_meta_inode;
- }
- if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_QUOTA_NEED_FSCK_FLAG))
- set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
- if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_DISABLED_QUICK_FLAG)) {
- set_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
- sbi->interval_time[DISABLE_TIME] = DEF_DISABLE_QUICK_INTERVAL;
- }
- if (__is_set_ckpt_flags(F2FS_CKPT(sbi), CP_FSCK_FLAG))
- set_sbi_flag(sbi, SBI_NEED_FSCK);
- /* Initialize device list */
- err = f2fs_scan_devices(sbi);
- if (err) {
- f2fs_err(sbi, "Failed to find devices");
- goto free_devices;
- }
- err = f2fs_init_post_read_wq(sbi);
- if (err) {
- f2fs_err(sbi, "Failed to initialize post read workqueue");
- goto free_devices;
- }
- sbi->total_valid_node_count =
- le32_to_cpu(sbi->ckpt->valid_node_count);
- percpu_counter_set(&sbi->total_valid_inode_count,
- le32_to_cpu(sbi->ckpt->valid_inode_count));
- sbi->user_block_count = le64_to_cpu(sbi->ckpt->user_block_count);
- sbi->total_valid_block_count =
- le64_to_cpu(sbi->ckpt->valid_block_count);
- sbi->last_valid_block_count = sbi->total_valid_block_count;
- sbi->reserved_blocks = 0;
- sbi->current_reserved_blocks = 0;
- limit_reserve_root(sbi);
- adjust_unusable_cap_perc(sbi);
- f2fs_init_extent_cache_info(sbi);
- f2fs_init_ino_entry_info(sbi);
- f2fs_init_fsync_node_info(sbi);
- /* setup checkpoint request control and start checkpoint issue thread */
- f2fs_init_ckpt_req_control(sbi);
- if (!f2fs_readonly(sb) && !test_opt(sbi, DISABLE_CHECKPOINT) &&
- test_opt(sbi, MERGE_CHECKPOINT)) {
- err = f2fs_start_ckpt_thread(sbi);
- if (err) {
- f2fs_err(sbi,
- "Failed to start F2FS issue_checkpoint_thread (%d)",
- err);
- goto stop_ckpt_thread;
- }
- }
- /* setup f2fs internal modules */
- err = f2fs_build_segment_manager(sbi);
- if (err) {
- f2fs_err(sbi, "Failed to initialize F2FS segment manager (%d)",
- err);
- goto free_sm;
- }
- err = f2fs_build_node_manager(sbi);
- if (err) {
- f2fs_err(sbi, "Failed to initialize F2FS node manager (%d)",
- err);
- goto free_nm;
- }
- err = adjust_reserved_segment(sbi);
- if (err)
- goto free_nm;
- /* For write statistics */
- sbi->sectors_written_start = f2fs_get_sectors_written(sbi);
- /* Read accumulated write IO statistics if exists */
- seg_i = CURSEG_I(sbi, CURSEG_HOT_NODE);
- if (__exist_node_summaries(sbi))
- sbi->kbytes_written =
- le64_to_cpu(seg_i->journal->info.kbytes_written);
- f2fs_build_gc_manager(sbi);
- err = f2fs_build_stats(sbi);
- if (err)
- goto free_nm;
- /* get an inode for node space */
- sbi->node_inode = f2fs_iget(sb, F2FS_NODE_INO(sbi));
- if (IS_ERR(sbi->node_inode)) {
- f2fs_err(sbi, "Failed to read node inode");
- err = PTR_ERR(sbi->node_inode);
- goto free_stats;
- }
- /* read root inode and dentry */
- root = f2fs_iget(sb, F2FS_ROOT_INO(sbi));
- if (IS_ERR(root)) {
- f2fs_err(sbi, "Failed to read root inode");
- err = PTR_ERR(root);
- goto free_node_inode;
- }
- if (!S_ISDIR(root->i_mode) || !root->i_blocks ||
- !root->i_size || !root->i_nlink) {
- iput(root);
- err = -EINVAL;
- goto free_node_inode;
- }
- sb->s_root = d_make_root(root); /* allocate root dentry */
- if (!sb->s_root) {
- err = -ENOMEM;
- goto free_node_inode;
- }
- err = f2fs_init_compress_inode(sbi);
- if (err)
- goto free_root_inode;
- err = f2fs_register_sysfs(sbi);
- if (err)
- goto free_compress_inode;
- #ifdef CONFIG_QUOTA
- /* Enable quota usage during mount */
- if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb)) {
- err = f2fs_enable_quotas(sb);
- if (err)
- f2fs_err(sbi, "Cannot turn on quotas: error %d", err);
- }
- quota_enabled = f2fs_recover_quota_begin(sbi);
- #endif
- /* if there are any orphan inodes, free them */
- err = f2fs_recover_orphan_inodes(sbi);
- if (err)
- goto free_meta;
- if (unlikely(is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)))
- goto reset_checkpoint;
- /* recover fsynced data */
- if (!test_opt(sbi, DISABLE_ROLL_FORWARD) &&
- !test_opt(sbi, NORECOVERY)) {
- /*
- * mount should be failed, when device has readonly mode, and
- * previous checkpoint was not done by clean system shutdown.
- */
- if (f2fs_hw_is_readonly(sbi)) {
- if (!is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
- err = f2fs_recover_fsync_data(sbi, true);
- if (err > 0) {
- err = -EROFS;
- f2fs_err(sbi, "Need to recover fsync data, but "
- "write access unavailable, please try "
- "mount w/ disable_roll_forward or norecovery");
- }
- if (err < 0)
- goto free_meta;
- }
- f2fs_info(sbi, "write access unavailable, skipping recovery");
- goto reset_checkpoint;
- }
- if (need_fsck)
- set_sbi_flag(sbi, SBI_NEED_FSCK);
- if (skip_recovery)
- goto reset_checkpoint;
- err = f2fs_recover_fsync_data(sbi, false);
- if (err < 0) {
- if (err != -ENOMEM)
- skip_recovery = true;
- need_fsck = true;
- f2fs_err(sbi, "Cannot recover all fsync data errno=%d",
- err);
- goto free_meta;
- }
- } else {
- err = f2fs_recover_fsync_data(sbi, true);
- if (!f2fs_readonly(sb) && err > 0) {
- err = -EINVAL;
- f2fs_err(sbi, "Need to recover fsync data");
- goto free_meta;
- }
- }
- #ifdef CONFIG_QUOTA
- f2fs_recover_quota_end(sbi, quota_enabled);
- #endif
- /*
- * If the f2fs is not readonly and fsync data recovery succeeds,
- * check zoned block devices' write pointer consistency.
- */
- if (!err && !f2fs_readonly(sb) && f2fs_sb_has_blkzoned(sbi)) {
- err = f2fs_check_write_pointer(sbi);
- if (err)
- goto free_meta;
- }
- reset_checkpoint:
- f2fs_init_inmem_curseg(sbi);
- /* f2fs_recover_fsync_data() cleared this already */
- clear_sbi_flag(sbi, SBI_POR_DOING);
- if (test_opt(sbi, DISABLE_CHECKPOINT)) {
- err = f2fs_disable_checkpoint(sbi);
- if (err)
- goto sync_free_meta;
- } else if (is_set_ckpt_flags(sbi, CP_DISABLED_FLAG)) {
- f2fs_enable_checkpoint(sbi);
- }
- /*
- * If filesystem is not mounted as read-only then
- * do start the gc_thread.
- */
- if ((F2FS_OPTION(sbi).bggc_mode != BGGC_MODE_OFF ||
- test_opt(sbi, GC_MERGE)) && !f2fs_readonly(sb)) {
- /* After POR, we can run background GC thread.*/
- err = f2fs_start_gc_thread(sbi);
- if (err)
- goto sync_free_meta;
- }
- kvfree(options);
- /* recover broken superblock */
- if (recovery) {
- err = f2fs_commit_super(sbi, true);
- f2fs_info(sbi, "Try to recover %dth superblock, ret: %d",
- sbi->valid_super_block ? 1 : 2, err);
- }
- f2fs_join_shrinker(sbi);
- f2fs_tuning_parameters(sbi);
- f2fs_notice(sbi, "Mounted with checkpoint version = %llx",
- cur_cp_version(F2FS_CKPT(sbi)));
- f2fs_update_time(sbi, CP_TIME);
- f2fs_update_time(sbi, REQ_TIME);
- clear_sbi_flag(sbi, SBI_CP_DISABLED_QUICK);
- cleancache_init_fs(sb);
- return 0;
- sync_free_meta:
- /* safe to flush all the data */
- sync_filesystem(sbi->sb);
- retry_cnt = 0;
- free_meta:
- #ifdef CONFIG_QUOTA
- f2fs_truncate_quota_inode_pages(sb);
- if (f2fs_sb_has_quota_ino(sbi) && !f2fs_readonly(sb))
- f2fs_quota_off_umount(sbi->sb);
- #endif
- /*
- * Some dirty meta pages can be produced by f2fs_recover_orphan_inodes()
- * failed by EIO. Then, iput(node_inode) can trigger balance_fs_bg()
- * followed by f2fs_write_checkpoint() through f2fs_write_node_pages(), which
- * falls into an infinite loop in f2fs_sync_meta_pages().
- */
- truncate_inode_pages_final(META_MAPPING(sbi));
- /* evict some inodes being cached by GC */
- evict_inodes(sb);
- f2fs_unregister_sysfs(sbi);
- free_compress_inode:
- f2fs_destroy_compress_inode(sbi);
- free_root_inode:
- dput(sb->s_root);
- sb->s_root = NULL;
- free_node_inode:
- f2fs_release_ino_entry(sbi, true);
- truncate_inode_pages_final(NODE_MAPPING(sbi));
- iput(sbi->node_inode);
- sbi->node_inode = NULL;
- free_stats:
- f2fs_destroy_stats(sbi);
- free_nm:
- /* stop discard thread before destroying node manager */
- f2fs_stop_discard_thread(sbi);
- f2fs_destroy_node_manager(sbi);
- free_sm:
- f2fs_destroy_segment_manager(sbi);
- stop_ckpt_thread:
- f2fs_stop_ckpt_thread(sbi);
- f2fs_destroy_post_read_wq(sbi);
- free_devices:
- destroy_device_list(sbi);
- kvfree(sbi->ckpt);
- free_meta_inode:
- make_bad_inode(sbi->meta_inode);
- iput(sbi->meta_inode);
- sbi->meta_inode = NULL;
- free_page_array_cache:
- f2fs_destroy_page_array_cache(sbi);
- free_xattr_cache:
- f2fs_destroy_xattr_caches(sbi);
- free_io_dummy:
- mempool_destroy(sbi->write_io_dummy);
- free_percpu:
- destroy_percpu_info(sbi);
- free_iostat:
- f2fs_destroy_iostat(sbi);
- free_bio_info:
- for (i = 0; i < NR_PAGE_TYPE; i++)
- kvfree(sbi->write_io[i]);
- #if IS_ENABLED(CONFIG_UNICODE)
- utf8_unload(sb->s_encoding);
- sb->s_encoding = NULL;
- #endif
- free_options:
- #ifdef CONFIG_QUOTA
- for (i = 0; i < MAXQUOTAS; i++)
- kfree(F2FS_OPTION(sbi).s_qf_names[i]);
- #endif
- fscrypt_free_dummy_policy(&F2FS_OPTION(sbi).dummy_enc_policy);
- kvfree(options);
- free_sb_buf:
- kfree(raw_super);
- free_sbi:
- if (sbi->s_chksum_driver)
- crypto_free_shash(sbi->s_chksum_driver);
- kfree(sbi);
- /* give only one another chance */
- if (retry_cnt > 0 && skip_recovery) {
- retry_cnt--;
- shrink_dcache_sb(sb);
- goto try_onemore;
- }
- return err;
- }
- static struct dentry *f2fs_mount(struct file_system_type *fs_type, int flags,
- const char *dev_name, void *data)
- {
- return mount_bdev(fs_type, flags, dev_name, data, f2fs_fill_super);
- }
- static void kill_f2fs_super(struct super_block *sb)
- {
- if (sb->s_root) {
- struct f2fs_sb_info *sbi = F2FS_SB(sb);
- set_sbi_flag(sbi, SBI_IS_CLOSE);
- f2fs_stop_gc_thread(sbi);
- f2fs_stop_discard_thread(sbi);
- #ifdef CONFIG_F2FS_FS_COMPRESSION
- /*
- * latter evict_inode() can bypass checking and invalidating
- * compress inode cache.
- */
- if (test_opt(sbi, COMPRESS_CACHE))
- truncate_inode_pages_final(COMPRESS_MAPPING(sbi));
- #endif
- if (is_sbi_flag_set(sbi, SBI_IS_DIRTY) ||
- !is_set_ckpt_flags(sbi, CP_UMOUNT_FLAG)) {
- struct cp_control cpc = {
- .reason = CP_UMOUNT,
- };
- f2fs_write_checkpoint(sbi, &cpc);
- }
- if (is_sbi_flag_set(sbi, SBI_IS_RECOVERED) && f2fs_readonly(sb))
- sb->s_flags &= ~SB_RDONLY;
- }
- kill_block_super(sb);
- }
- static struct file_system_type f2fs_fs_type = {
- .owner = THIS_MODULE,
- .name = "f2fs",
- .mount = f2fs_mount,
- .kill_sb = kill_f2fs_super,
- .fs_flags = FS_REQUIRES_DEV | FS_ALLOW_IDMAP,
- };
- MODULE_ALIAS_FS("f2fs");
- static int __init init_inodecache(void)
- {
- f2fs_inode_cachep = kmem_cache_create("f2fs_inode_cache",
- sizeof(struct f2fs_inode_info), 0,
- SLAB_RECLAIM_ACCOUNT|SLAB_ACCOUNT, NULL);
- return f2fs_inode_cachep ? 0 : -ENOMEM;
- }
- static void destroy_inodecache(void)
- {
- /*
- * Make sure all delayed rcu free inodes are flushed before we
- * destroy cache.
- */
- rcu_barrier();
- kmem_cache_destroy(f2fs_inode_cachep);
- }
- static int __init init_f2fs_fs(void)
- {
- int err;
- if (PAGE_SIZE != F2FS_BLKSIZE) {
- printk("F2FS not supported on PAGE_SIZE(%lu) != BLOCK_SIZE(%lu)\n",
- PAGE_SIZE, F2FS_BLKSIZE);
- return -EINVAL;
- }
- err = init_inodecache();
- if (err)
- goto fail;
- err = f2fs_create_node_manager_caches();
- if (err)
- goto free_inodecache;
- err = f2fs_create_segment_manager_caches();
- if (err)
- goto free_node_manager_caches;
- err = f2fs_create_checkpoint_caches();
- if (err)
- goto free_segment_manager_caches;
- err = f2fs_create_recovery_cache();
- if (err)
- goto free_checkpoint_caches;
- err = f2fs_create_extent_cache();
- if (err)
- goto free_recovery_cache;
- err = f2fs_create_garbage_collection_cache();
- if (err)
- goto free_extent_cache;
- err = f2fs_init_sysfs();
- if (err)
- goto free_garbage_collection_cache;
- err = register_shrinker(&f2fs_shrinker_info, "f2fs-shrinker");
- if (err)
- goto free_sysfs;
- err = register_filesystem(&f2fs_fs_type);
- if (err)
- goto free_shrinker;
- f2fs_create_root_stats();
- err = f2fs_init_post_read_processing();
- if (err)
- goto free_root_stats;
- err = f2fs_init_iostat_processing();
- if (err)
- goto free_post_read;
- err = f2fs_init_bio_entry_cache();
- if (err)
- goto free_iostat;
- err = f2fs_init_bioset();
- if (err)
- goto free_bio_entry_cache;
- err = f2fs_init_compress_mempool();
- if (err)
- goto free_bioset;
- err = f2fs_init_compress_cache();
- if (err)
- goto free_compress_mempool;
- err = f2fs_create_casefold_cache();
- if (err)
- goto free_compress_cache;
- return 0;
- free_compress_cache:
- f2fs_destroy_compress_cache();
- free_compress_mempool:
- f2fs_destroy_compress_mempool();
- free_bioset:
- f2fs_destroy_bioset();
- free_bio_entry_cache:
- f2fs_destroy_bio_entry_cache();
- free_iostat:
- f2fs_destroy_iostat_processing();
- free_post_read:
- f2fs_destroy_post_read_processing();
- free_root_stats:
- f2fs_destroy_root_stats();
- unregister_filesystem(&f2fs_fs_type);
- free_shrinker:
- unregister_shrinker(&f2fs_shrinker_info);
- free_sysfs:
- f2fs_exit_sysfs();
- free_garbage_collection_cache:
- f2fs_destroy_garbage_collection_cache();
- free_extent_cache:
- f2fs_destroy_extent_cache();
- free_recovery_cache:
- f2fs_destroy_recovery_cache();
- free_checkpoint_caches:
- f2fs_destroy_checkpoint_caches();
- free_segment_manager_caches:
- f2fs_destroy_segment_manager_caches();
- free_node_manager_caches:
- f2fs_destroy_node_manager_caches();
- free_inodecache:
- destroy_inodecache();
- fail:
- return err;
- }
- static void __exit exit_f2fs_fs(void)
- {
- f2fs_destroy_casefold_cache();
- f2fs_destroy_compress_cache();
- f2fs_destroy_compress_mempool();
- f2fs_destroy_bioset();
- f2fs_destroy_bio_entry_cache();
- f2fs_destroy_iostat_processing();
- f2fs_destroy_post_read_processing();
- f2fs_destroy_root_stats();
- unregister_filesystem(&f2fs_fs_type);
- unregister_shrinker(&f2fs_shrinker_info);
- f2fs_exit_sysfs();
- f2fs_destroy_garbage_collection_cache();
- f2fs_destroy_extent_cache();
- f2fs_destroy_recovery_cache();
- f2fs_destroy_checkpoint_caches();
- f2fs_destroy_segment_manager_caches();
- f2fs_destroy_node_manager_caches();
- destroy_inodecache();
- }
- module_init(init_f2fs_fs)
- module_exit(exit_f2fs_fs)
- MODULE_AUTHOR("Samsung Electronics's Praesto Team");
- MODULE_DESCRIPTION("Flash Friendly File System");
- MODULE_LICENSE("GPL");
- MODULE_SOFTDEP("pre: crc32");
|