inode.c 26 KB

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  1. // SPDX-License-Identifier: GPL-2.0
  2. /*
  3. * fs/f2fs/inode.c
  4. *
  5. * Copyright (c) 2012 Samsung Electronics Co., Ltd.
  6. * http://www.samsung.com/
  7. */
  8. #include <linux/fs.h>
  9. #include <linux/f2fs_fs.h>
  10. #include <linux/buffer_head.h>
  11. #include <linux/writeback.h>
  12. #include <linux/sched/mm.h>
  13. #include "f2fs.h"
  14. #include "node.h"
  15. #include "segment.h"
  16. #include "xattr.h"
  17. #include <trace/events/f2fs.h>
  18. #ifdef CONFIG_F2FS_FS_COMPRESSION
  19. extern const struct address_space_operations f2fs_compress_aops;
  20. #endif
  21. void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync)
  22. {
  23. if (is_inode_flag_set(inode, FI_NEW_INODE))
  24. return;
  25. if (f2fs_inode_dirtied(inode, sync))
  26. return;
  27. mark_inode_dirty_sync(inode);
  28. }
  29. void f2fs_set_inode_flags(struct inode *inode)
  30. {
  31. unsigned int flags = F2FS_I(inode)->i_flags;
  32. unsigned int new_fl = 0;
  33. if (flags & F2FS_SYNC_FL)
  34. new_fl |= S_SYNC;
  35. if (flags & F2FS_APPEND_FL)
  36. new_fl |= S_APPEND;
  37. if (flags & F2FS_IMMUTABLE_FL)
  38. new_fl |= S_IMMUTABLE;
  39. if (flags & F2FS_NOATIME_FL)
  40. new_fl |= S_NOATIME;
  41. if (flags & F2FS_DIRSYNC_FL)
  42. new_fl |= S_DIRSYNC;
  43. if (file_is_encrypt(inode))
  44. new_fl |= S_ENCRYPTED;
  45. if (file_is_verity(inode))
  46. new_fl |= S_VERITY;
  47. if (flags & F2FS_CASEFOLD_FL)
  48. new_fl |= S_CASEFOLD;
  49. inode_set_flags(inode, new_fl,
  50. S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC|
  51. S_ENCRYPTED|S_VERITY|S_CASEFOLD);
  52. }
  53. static void __get_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
  54. {
  55. int extra_size = get_extra_isize(inode);
  56. if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
  57. S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
  58. if (ri->i_addr[extra_size])
  59. inode->i_rdev = old_decode_dev(
  60. le32_to_cpu(ri->i_addr[extra_size]));
  61. else
  62. inode->i_rdev = new_decode_dev(
  63. le32_to_cpu(ri->i_addr[extra_size + 1]));
  64. }
  65. }
  66. static int __written_first_block(struct f2fs_sb_info *sbi,
  67. struct f2fs_inode *ri)
  68. {
  69. block_t addr = le32_to_cpu(ri->i_addr[offset_in_addr(ri)]);
  70. if (!__is_valid_data_blkaddr(addr))
  71. return 1;
  72. if (!f2fs_is_valid_blkaddr(sbi, addr, DATA_GENERIC_ENHANCE)) {
  73. f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
  74. return -EFSCORRUPTED;
  75. }
  76. return 0;
  77. }
  78. static void __set_inode_rdev(struct inode *inode, struct f2fs_inode *ri)
  79. {
  80. int extra_size = get_extra_isize(inode);
  81. if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode)) {
  82. if (old_valid_dev(inode->i_rdev)) {
  83. ri->i_addr[extra_size] =
  84. cpu_to_le32(old_encode_dev(inode->i_rdev));
  85. ri->i_addr[extra_size + 1] = 0;
  86. } else {
  87. ri->i_addr[extra_size] = 0;
  88. ri->i_addr[extra_size + 1] =
  89. cpu_to_le32(new_encode_dev(inode->i_rdev));
  90. ri->i_addr[extra_size + 2] = 0;
  91. }
  92. }
  93. }
  94. static void __recover_inline_status(struct inode *inode, struct page *ipage)
  95. {
  96. void *inline_data = inline_data_addr(inode, ipage);
  97. __le32 *start = inline_data;
  98. __le32 *end = start + MAX_INLINE_DATA(inode) / sizeof(__le32);
  99. while (start < end) {
  100. if (*start++) {
  101. f2fs_wait_on_page_writeback(ipage, NODE, true, true);
  102. set_inode_flag(inode, FI_DATA_EXIST);
  103. set_raw_inline(inode, F2FS_INODE(ipage));
  104. set_page_dirty(ipage);
  105. return;
  106. }
  107. }
  108. return;
  109. }
  110. static bool f2fs_enable_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
  111. {
  112. struct f2fs_inode *ri = &F2FS_NODE(page)->i;
  113. if (!f2fs_sb_has_inode_chksum(sbi))
  114. return false;
  115. if (!IS_INODE(page) || !(ri->i_inline & F2FS_EXTRA_ATTR))
  116. return false;
  117. if (!F2FS_FITS_IN_INODE(ri, le16_to_cpu(ri->i_extra_isize),
  118. i_inode_checksum))
  119. return false;
  120. return true;
  121. }
  122. static __u32 f2fs_inode_chksum(struct f2fs_sb_info *sbi, struct page *page)
  123. {
  124. struct f2fs_node *node = F2FS_NODE(page);
  125. struct f2fs_inode *ri = &node->i;
  126. __le32 ino = node->footer.ino;
  127. __le32 gen = ri->i_generation;
  128. __u32 chksum, chksum_seed;
  129. __u32 dummy_cs = 0;
  130. unsigned int offset = offsetof(struct f2fs_inode, i_inode_checksum);
  131. unsigned int cs_size = sizeof(dummy_cs);
  132. chksum = f2fs_chksum(sbi, sbi->s_chksum_seed, (__u8 *)&ino,
  133. sizeof(ino));
  134. chksum_seed = f2fs_chksum(sbi, chksum, (__u8 *)&gen, sizeof(gen));
  135. chksum = f2fs_chksum(sbi, chksum_seed, (__u8 *)ri, offset);
  136. chksum = f2fs_chksum(sbi, chksum, (__u8 *)&dummy_cs, cs_size);
  137. offset += cs_size;
  138. chksum = f2fs_chksum(sbi, chksum, (__u8 *)ri + offset,
  139. F2FS_BLKSIZE - offset);
  140. return chksum;
  141. }
  142. bool f2fs_inode_chksum_verify(struct f2fs_sb_info *sbi, struct page *page)
  143. {
  144. struct f2fs_inode *ri;
  145. __u32 provided, calculated;
  146. if (unlikely(is_sbi_flag_set(sbi, SBI_IS_SHUTDOWN)))
  147. return true;
  148. #ifdef CONFIG_F2FS_CHECK_FS
  149. if (!f2fs_enable_inode_chksum(sbi, page))
  150. #else
  151. if (!f2fs_enable_inode_chksum(sbi, page) ||
  152. PageDirty(page) || PageWriteback(page))
  153. #endif
  154. return true;
  155. ri = &F2FS_NODE(page)->i;
  156. provided = le32_to_cpu(ri->i_inode_checksum);
  157. calculated = f2fs_inode_chksum(sbi, page);
  158. if (provided != calculated)
  159. f2fs_warn(sbi, "checksum invalid, nid = %lu, ino_of_node = %x, %x vs. %x",
  160. page->index, ino_of_node(page), provided, calculated);
  161. return provided == calculated;
  162. }
  163. void f2fs_inode_chksum_set(struct f2fs_sb_info *sbi, struct page *page)
  164. {
  165. struct f2fs_inode *ri = &F2FS_NODE(page)->i;
  166. if (!f2fs_enable_inode_chksum(sbi, page))
  167. return;
  168. ri->i_inode_checksum = cpu_to_le32(f2fs_inode_chksum(sbi, page));
  169. }
  170. static bool sanity_check_inode(struct inode *inode, struct page *node_page)
  171. {
  172. struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
  173. struct f2fs_inode_info *fi = F2FS_I(inode);
  174. struct f2fs_inode *ri = F2FS_INODE(node_page);
  175. unsigned long long iblocks;
  176. iblocks = le64_to_cpu(F2FS_INODE(node_page)->i_blocks);
  177. if (!iblocks) {
  178. set_sbi_flag(sbi, SBI_NEED_FSCK);
  179. f2fs_warn(sbi, "%s: corrupted inode i_blocks i_ino=%lx iblocks=%llu, run fsck to fix.",
  180. __func__, inode->i_ino, iblocks);
  181. return false;
  182. }
  183. if (ino_of_node(node_page) != nid_of_node(node_page)) {
  184. set_sbi_flag(sbi, SBI_NEED_FSCK);
  185. f2fs_warn(sbi, "%s: corrupted inode footer i_ino=%lx, ino,nid: [%u, %u] run fsck to fix.",
  186. __func__, inode->i_ino,
  187. ino_of_node(node_page), nid_of_node(node_page));
  188. return false;
  189. }
  190. if (f2fs_sb_has_flexible_inline_xattr(sbi)
  191. && !f2fs_has_extra_attr(inode)) {
  192. set_sbi_flag(sbi, SBI_NEED_FSCK);
  193. f2fs_warn(sbi, "%s: corrupted inode ino=%lx, run fsck to fix.",
  194. __func__, inode->i_ino);
  195. return false;
  196. }
  197. if (f2fs_has_extra_attr(inode) &&
  198. !f2fs_sb_has_extra_attr(sbi)) {
  199. set_sbi_flag(sbi, SBI_NEED_FSCK);
  200. f2fs_warn(sbi, "%s: inode (ino=%lx) is with extra_attr, but extra_attr feature is off",
  201. __func__, inode->i_ino);
  202. return false;
  203. }
  204. if (fi->i_extra_isize > F2FS_TOTAL_EXTRA_ATTR_SIZE ||
  205. fi->i_extra_isize % sizeof(__le32)) {
  206. set_sbi_flag(sbi, SBI_NEED_FSCK);
  207. f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_extra_isize: %d, max: %zu",
  208. __func__, inode->i_ino, fi->i_extra_isize,
  209. F2FS_TOTAL_EXTRA_ATTR_SIZE);
  210. return false;
  211. }
  212. if (f2fs_has_extra_attr(inode) &&
  213. f2fs_sb_has_flexible_inline_xattr(sbi) &&
  214. f2fs_has_inline_xattr(inode) &&
  215. (!fi->i_inline_xattr_size ||
  216. fi->i_inline_xattr_size > MAX_INLINE_XATTR_SIZE)) {
  217. set_sbi_flag(sbi, SBI_NEED_FSCK);
  218. f2fs_warn(sbi, "%s: inode (ino=%lx) has corrupted i_inline_xattr_size: %d, max: %lu",
  219. __func__, inode->i_ino, fi->i_inline_xattr_size,
  220. MAX_INLINE_XATTR_SIZE);
  221. return false;
  222. }
  223. if (f2fs_sanity_check_inline_data(inode)) {
  224. set_sbi_flag(sbi, SBI_NEED_FSCK);
  225. f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_data, run fsck to fix",
  226. __func__, inode->i_ino, inode->i_mode);
  227. return false;
  228. }
  229. if (f2fs_has_inline_dentry(inode) && !S_ISDIR(inode->i_mode)) {
  230. set_sbi_flag(sbi, SBI_NEED_FSCK);
  231. f2fs_warn(sbi, "%s: inode (ino=%lx, mode=%u) should not have inline_dentry, run fsck to fix",
  232. __func__, inode->i_ino, inode->i_mode);
  233. return false;
  234. }
  235. if ((fi->i_flags & F2FS_CASEFOLD_FL) && !f2fs_sb_has_casefold(sbi)) {
  236. set_sbi_flag(sbi, SBI_NEED_FSCK);
  237. f2fs_warn(sbi, "%s: inode (ino=%lx) has casefold flag, but casefold feature is off",
  238. __func__, inode->i_ino);
  239. return false;
  240. }
  241. if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
  242. fi->i_flags & F2FS_COMPR_FL &&
  243. F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
  244. i_log_cluster_size)) {
  245. if (ri->i_compress_algorithm >= COMPRESS_MAX) {
  246. set_sbi_flag(sbi, SBI_NEED_FSCK);
  247. f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
  248. "compress algorithm: %u, run fsck to fix",
  249. __func__, inode->i_ino,
  250. ri->i_compress_algorithm);
  251. return false;
  252. }
  253. if (le64_to_cpu(ri->i_compr_blocks) >
  254. SECTOR_TO_BLOCK(inode->i_blocks)) {
  255. set_sbi_flag(sbi, SBI_NEED_FSCK);
  256. f2fs_warn(sbi, "%s: inode (ino=%lx) has inconsistent "
  257. "i_compr_blocks:%llu, i_blocks:%llu, run fsck to fix",
  258. __func__, inode->i_ino,
  259. le64_to_cpu(ri->i_compr_blocks),
  260. SECTOR_TO_BLOCK(inode->i_blocks));
  261. return false;
  262. }
  263. if (ri->i_log_cluster_size < MIN_COMPRESS_LOG_SIZE ||
  264. ri->i_log_cluster_size > MAX_COMPRESS_LOG_SIZE) {
  265. set_sbi_flag(sbi, SBI_NEED_FSCK);
  266. f2fs_warn(sbi, "%s: inode (ino=%lx) has unsupported "
  267. "log cluster size: %u, run fsck to fix",
  268. __func__, inode->i_ino,
  269. ri->i_log_cluster_size);
  270. return false;
  271. }
  272. }
  273. return true;
  274. }
  275. static void init_idisk_time(struct inode *inode)
  276. {
  277. struct f2fs_inode_info *fi = F2FS_I(inode);
  278. fi->i_disk_time[0] = inode->i_atime;
  279. fi->i_disk_time[1] = inode->i_ctime;
  280. fi->i_disk_time[2] = inode->i_mtime;
  281. }
  282. static int do_read_inode(struct inode *inode)
  283. {
  284. struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
  285. struct f2fs_inode_info *fi = F2FS_I(inode);
  286. struct page *node_page;
  287. struct f2fs_inode *ri;
  288. projid_t i_projid;
  289. int err;
  290. /* Check if ino is within scope */
  291. if (f2fs_check_nid_range(sbi, inode->i_ino))
  292. return -EINVAL;
  293. node_page = f2fs_get_node_page(sbi, inode->i_ino);
  294. if (IS_ERR(node_page))
  295. return PTR_ERR(node_page);
  296. ri = F2FS_INODE(node_page);
  297. inode->i_mode = le16_to_cpu(ri->i_mode);
  298. i_uid_write(inode, le32_to_cpu(ri->i_uid));
  299. i_gid_write(inode, le32_to_cpu(ri->i_gid));
  300. set_nlink(inode, le32_to_cpu(ri->i_links));
  301. inode->i_size = le64_to_cpu(ri->i_size);
  302. inode->i_blocks = SECTOR_FROM_BLOCK(le64_to_cpu(ri->i_blocks) - 1);
  303. inode->i_atime.tv_sec = le64_to_cpu(ri->i_atime);
  304. inode->i_ctime.tv_sec = le64_to_cpu(ri->i_ctime);
  305. inode->i_mtime.tv_sec = le64_to_cpu(ri->i_mtime);
  306. inode->i_atime.tv_nsec = le32_to_cpu(ri->i_atime_nsec);
  307. inode->i_ctime.tv_nsec = le32_to_cpu(ri->i_ctime_nsec);
  308. inode->i_mtime.tv_nsec = le32_to_cpu(ri->i_mtime_nsec);
  309. inode->i_generation = le32_to_cpu(ri->i_generation);
  310. if (S_ISDIR(inode->i_mode))
  311. fi->i_current_depth = le32_to_cpu(ri->i_current_depth);
  312. else if (S_ISREG(inode->i_mode))
  313. fi->i_gc_failures[GC_FAILURE_PIN] =
  314. le16_to_cpu(ri->i_gc_failures);
  315. fi->i_xattr_nid = le32_to_cpu(ri->i_xattr_nid);
  316. fi->i_flags = le32_to_cpu(ri->i_flags);
  317. if (S_ISREG(inode->i_mode))
  318. fi->i_flags &= ~F2FS_PROJINHERIT_FL;
  319. bitmap_zero(fi->flags, FI_MAX);
  320. fi->i_advise = ri->i_advise;
  321. fi->i_pino = le32_to_cpu(ri->i_pino);
  322. fi->i_dir_level = ri->i_dir_level;
  323. get_inline_info(inode, ri);
  324. fi->i_extra_isize = f2fs_has_extra_attr(inode) ?
  325. le16_to_cpu(ri->i_extra_isize) : 0;
  326. if (f2fs_sb_has_flexible_inline_xattr(sbi)) {
  327. fi->i_inline_xattr_size = le16_to_cpu(ri->i_inline_xattr_size);
  328. } else if (f2fs_has_inline_xattr(inode) ||
  329. f2fs_has_inline_dentry(inode)) {
  330. fi->i_inline_xattr_size = DEFAULT_INLINE_XATTR_ADDRS;
  331. } else {
  332. /*
  333. * Previous inline data or directory always reserved 200 bytes
  334. * in inode layout, even if inline_xattr is disabled. In order
  335. * to keep inline_dentry's structure for backward compatibility,
  336. * we get the space back only from inline_data.
  337. */
  338. fi->i_inline_xattr_size = 0;
  339. }
  340. if (!sanity_check_inode(inode, node_page)) {
  341. f2fs_put_page(node_page, 1);
  342. f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
  343. return -EFSCORRUPTED;
  344. }
  345. /* check data exist */
  346. if (f2fs_has_inline_data(inode) && !f2fs_exist_data(inode))
  347. __recover_inline_status(inode, node_page);
  348. /* try to recover cold bit for non-dir inode */
  349. if (!S_ISDIR(inode->i_mode) && !is_cold_node(node_page)) {
  350. f2fs_wait_on_page_writeback(node_page, NODE, true, true);
  351. set_cold_node(node_page, false);
  352. set_page_dirty(node_page);
  353. }
  354. /* get rdev by using inline_info */
  355. __get_inode_rdev(inode, ri);
  356. if (S_ISREG(inode->i_mode)) {
  357. err = __written_first_block(sbi, ri);
  358. if (err < 0) {
  359. f2fs_put_page(node_page, 1);
  360. return err;
  361. }
  362. if (!err)
  363. set_inode_flag(inode, FI_FIRST_BLOCK_WRITTEN);
  364. }
  365. if (!f2fs_need_inode_block_update(sbi, inode->i_ino))
  366. fi->last_disk_size = inode->i_size;
  367. if (fi->i_flags & F2FS_PROJINHERIT_FL)
  368. set_inode_flag(inode, FI_PROJ_INHERIT);
  369. if (f2fs_has_extra_attr(inode) && f2fs_sb_has_project_quota(sbi) &&
  370. F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_projid))
  371. i_projid = (projid_t)le32_to_cpu(ri->i_projid);
  372. else
  373. i_projid = F2FS_DEF_PROJID;
  374. fi->i_projid = make_kprojid(&init_user_ns, i_projid);
  375. if (f2fs_has_extra_attr(inode) && f2fs_sb_has_inode_crtime(sbi) &&
  376. F2FS_FITS_IN_INODE(ri, fi->i_extra_isize, i_crtime)) {
  377. fi->i_crtime.tv_sec = le64_to_cpu(ri->i_crtime);
  378. fi->i_crtime.tv_nsec = le32_to_cpu(ri->i_crtime_nsec);
  379. }
  380. if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
  381. (fi->i_flags & F2FS_COMPR_FL)) {
  382. if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
  383. i_log_cluster_size)) {
  384. unsigned short compress_flag;
  385. atomic_set(&fi->i_compr_blocks,
  386. le64_to_cpu(ri->i_compr_blocks));
  387. fi->i_compress_algorithm = ri->i_compress_algorithm;
  388. fi->i_log_cluster_size = ri->i_log_cluster_size;
  389. compress_flag = le16_to_cpu(ri->i_compress_flag);
  390. fi->i_compress_level = compress_flag >>
  391. COMPRESS_LEVEL_OFFSET;
  392. fi->i_compress_flag = compress_flag &
  393. GENMASK(COMPRESS_LEVEL_OFFSET - 1, 0);
  394. fi->i_cluster_size = BIT(fi->i_log_cluster_size);
  395. set_inode_flag(inode, FI_COMPRESSED_FILE);
  396. }
  397. }
  398. init_idisk_time(inode);
  399. /* Need all the flag bits */
  400. f2fs_init_read_extent_tree(inode, node_page);
  401. f2fs_init_age_extent_tree(inode);
  402. if (!sanity_check_extent_cache(inode)) {
  403. f2fs_put_page(node_page, 1);
  404. f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
  405. return -EFSCORRUPTED;
  406. }
  407. f2fs_put_page(node_page, 1);
  408. stat_inc_inline_xattr(inode);
  409. stat_inc_inline_inode(inode);
  410. stat_inc_inline_dir(inode);
  411. stat_inc_compr_inode(inode);
  412. stat_add_compr_blocks(inode, atomic_read(&fi->i_compr_blocks));
  413. return 0;
  414. }
  415. static bool is_meta_ino(struct f2fs_sb_info *sbi, unsigned int ino)
  416. {
  417. return ino == F2FS_NODE_INO(sbi) || ino == F2FS_META_INO(sbi) ||
  418. ino == F2FS_COMPRESS_INO(sbi);
  419. }
  420. struct inode *f2fs_iget(struct super_block *sb, unsigned long ino)
  421. {
  422. struct f2fs_sb_info *sbi = F2FS_SB(sb);
  423. struct inode *inode;
  424. int ret = 0;
  425. inode = iget_locked(sb, ino);
  426. if (!inode)
  427. return ERR_PTR(-ENOMEM);
  428. if (!(inode->i_state & I_NEW)) {
  429. if (is_meta_ino(sbi, ino)) {
  430. f2fs_err(sbi, "inaccessible inode: %lu, run fsck to repair", ino);
  431. set_sbi_flag(sbi, SBI_NEED_FSCK);
  432. ret = -EFSCORRUPTED;
  433. trace_f2fs_iget_exit(inode, ret);
  434. iput(inode);
  435. f2fs_handle_error(sbi, ERROR_CORRUPTED_INODE);
  436. return ERR_PTR(ret);
  437. }
  438. trace_f2fs_iget(inode);
  439. return inode;
  440. }
  441. if (is_meta_ino(sbi, ino))
  442. goto make_now;
  443. ret = do_read_inode(inode);
  444. if (ret)
  445. goto bad_inode;
  446. make_now:
  447. if (ino == F2FS_NODE_INO(sbi)) {
  448. inode->i_mapping->a_ops = &f2fs_node_aops;
  449. mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
  450. } else if (ino == F2FS_META_INO(sbi)) {
  451. inode->i_mapping->a_ops = &f2fs_meta_aops;
  452. mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
  453. } else if (ino == F2FS_COMPRESS_INO(sbi)) {
  454. #ifdef CONFIG_F2FS_FS_COMPRESSION
  455. inode->i_mapping->a_ops = &f2fs_compress_aops;
  456. /*
  457. * generic_error_remove_page only truncates pages of regular
  458. * inode
  459. */
  460. inode->i_mode |= S_IFREG;
  461. #endif
  462. mapping_set_gfp_mask(inode->i_mapping,
  463. GFP_NOFS | __GFP_HIGHMEM | __GFP_MOVABLE);
  464. } else if (S_ISREG(inode->i_mode)) {
  465. inode->i_op = &f2fs_file_inode_operations;
  466. inode->i_fop = &f2fs_file_operations;
  467. inode->i_mapping->a_ops = &f2fs_dblock_aops;
  468. } else if (S_ISDIR(inode->i_mode)) {
  469. inode->i_op = &f2fs_dir_inode_operations;
  470. inode->i_fop = &f2fs_dir_operations;
  471. inode->i_mapping->a_ops = &f2fs_dblock_aops;
  472. mapping_set_gfp_mask(inode->i_mapping, GFP_NOFS);
  473. } else if (S_ISLNK(inode->i_mode)) {
  474. if (file_is_encrypt(inode))
  475. inode->i_op = &f2fs_encrypted_symlink_inode_operations;
  476. else
  477. inode->i_op = &f2fs_symlink_inode_operations;
  478. inode_nohighmem(inode);
  479. inode->i_mapping->a_ops = &f2fs_dblock_aops;
  480. } else if (S_ISCHR(inode->i_mode) || S_ISBLK(inode->i_mode) ||
  481. S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) {
  482. inode->i_op = &f2fs_special_inode_operations;
  483. init_special_inode(inode, inode->i_mode, inode->i_rdev);
  484. } else {
  485. ret = -EIO;
  486. goto bad_inode;
  487. }
  488. f2fs_set_inode_flags(inode);
  489. if (file_should_truncate(inode) &&
  490. !is_sbi_flag_set(sbi, SBI_POR_DOING)) {
  491. ret = f2fs_truncate(inode);
  492. if (ret)
  493. goto bad_inode;
  494. file_dont_truncate(inode);
  495. }
  496. unlock_new_inode(inode);
  497. trace_f2fs_iget(inode);
  498. return inode;
  499. bad_inode:
  500. f2fs_inode_synced(inode);
  501. iget_failed(inode);
  502. trace_f2fs_iget_exit(inode, ret);
  503. return ERR_PTR(ret);
  504. }
  505. struct inode *f2fs_iget_retry(struct super_block *sb, unsigned long ino)
  506. {
  507. struct inode *inode;
  508. retry:
  509. inode = f2fs_iget(sb, ino);
  510. if (IS_ERR(inode)) {
  511. if (PTR_ERR(inode) == -ENOMEM) {
  512. memalloc_retry_wait(GFP_NOFS);
  513. goto retry;
  514. }
  515. }
  516. return inode;
  517. }
  518. void f2fs_update_inode(struct inode *inode, struct page *node_page)
  519. {
  520. struct f2fs_inode *ri;
  521. struct extent_tree *et = F2FS_I(inode)->extent_tree[EX_READ];
  522. f2fs_wait_on_page_writeback(node_page, NODE, true, true);
  523. set_page_dirty(node_page);
  524. f2fs_inode_synced(inode);
  525. ri = F2FS_INODE(node_page);
  526. ri->i_mode = cpu_to_le16(inode->i_mode);
  527. ri->i_advise = F2FS_I(inode)->i_advise;
  528. ri->i_uid = cpu_to_le32(i_uid_read(inode));
  529. ri->i_gid = cpu_to_le32(i_gid_read(inode));
  530. ri->i_links = cpu_to_le32(inode->i_nlink);
  531. ri->i_blocks = cpu_to_le64(SECTOR_TO_BLOCK(inode->i_blocks) + 1);
  532. if (!f2fs_is_atomic_file(inode) ||
  533. is_inode_flag_set(inode, FI_ATOMIC_COMMITTED))
  534. ri->i_size = cpu_to_le64(i_size_read(inode));
  535. if (et) {
  536. read_lock(&et->lock);
  537. set_raw_read_extent(&et->largest, &ri->i_ext);
  538. read_unlock(&et->lock);
  539. } else {
  540. memset(&ri->i_ext, 0, sizeof(ri->i_ext));
  541. }
  542. set_raw_inline(inode, ri);
  543. ri->i_atime = cpu_to_le64(inode->i_atime.tv_sec);
  544. ri->i_ctime = cpu_to_le64(inode->i_ctime.tv_sec);
  545. ri->i_mtime = cpu_to_le64(inode->i_mtime.tv_sec);
  546. ri->i_atime_nsec = cpu_to_le32(inode->i_atime.tv_nsec);
  547. ri->i_ctime_nsec = cpu_to_le32(inode->i_ctime.tv_nsec);
  548. ri->i_mtime_nsec = cpu_to_le32(inode->i_mtime.tv_nsec);
  549. if (S_ISDIR(inode->i_mode))
  550. ri->i_current_depth =
  551. cpu_to_le32(F2FS_I(inode)->i_current_depth);
  552. else if (S_ISREG(inode->i_mode))
  553. ri->i_gc_failures =
  554. cpu_to_le16(F2FS_I(inode)->i_gc_failures[GC_FAILURE_PIN]);
  555. ri->i_xattr_nid = cpu_to_le32(F2FS_I(inode)->i_xattr_nid);
  556. ri->i_flags = cpu_to_le32(F2FS_I(inode)->i_flags);
  557. ri->i_pino = cpu_to_le32(F2FS_I(inode)->i_pino);
  558. ri->i_generation = cpu_to_le32(inode->i_generation);
  559. ri->i_dir_level = F2FS_I(inode)->i_dir_level;
  560. if (f2fs_has_extra_attr(inode)) {
  561. ri->i_extra_isize = cpu_to_le16(F2FS_I(inode)->i_extra_isize);
  562. if (f2fs_sb_has_flexible_inline_xattr(F2FS_I_SB(inode)))
  563. ri->i_inline_xattr_size =
  564. cpu_to_le16(F2FS_I(inode)->i_inline_xattr_size);
  565. if (f2fs_sb_has_project_quota(F2FS_I_SB(inode)) &&
  566. F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
  567. i_projid)) {
  568. projid_t i_projid;
  569. i_projid = from_kprojid(&init_user_ns,
  570. F2FS_I(inode)->i_projid);
  571. ri->i_projid = cpu_to_le32(i_projid);
  572. }
  573. if (f2fs_sb_has_inode_crtime(F2FS_I_SB(inode)) &&
  574. F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
  575. i_crtime)) {
  576. ri->i_crtime =
  577. cpu_to_le64(F2FS_I(inode)->i_crtime.tv_sec);
  578. ri->i_crtime_nsec =
  579. cpu_to_le32(F2FS_I(inode)->i_crtime.tv_nsec);
  580. }
  581. if (f2fs_sb_has_compression(F2FS_I_SB(inode)) &&
  582. F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
  583. i_log_cluster_size)) {
  584. unsigned short compress_flag;
  585. ri->i_compr_blocks =
  586. cpu_to_le64(atomic_read(
  587. &F2FS_I(inode)->i_compr_blocks));
  588. ri->i_compress_algorithm =
  589. F2FS_I(inode)->i_compress_algorithm;
  590. compress_flag = F2FS_I(inode)->i_compress_flag |
  591. F2FS_I(inode)->i_compress_level <<
  592. COMPRESS_LEVEL_OFFSET;
  593. ri->i_compress_flag = cpu_to_le16(compress_flag);
  594. ri->i_log_cluster_size =
  595. F2FS_I(inode)->i_log_cluster_size;
  596. }
  597. }
  598. __set_inode_rdev(inode, ri);
  599. /* deleted inode */
  600. if (inode->i_nlink == 0)
  601. clear_page_private_inline(node_page);
  602. init_idisk_time(inode);
  603. #ifdef CONFIG_F2FS_CHECK_FS
  604. f2fs_inode_chksum_set(F2FS_I_SB(inode), node_page);
  605. #endif
  606. }
  607. void f2fs_update_inode_page(struct inode *inode)
  608. {
  609. struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
  610. struct page *node_page;
  611. int count = 0;
  612. retry:
  613. node_page = f2fs_get_node_page(sbi, inode->i_ino);
  614. if (IS_ERR(node_page)) {
  615. int err = PTR_ERR(node_page);
  616. /* The node block was truncated. */
  617. if (err == -ENOENT)
  618. return;
  619. if (err == -ENOMEM || ++count <= DEFAULT_RETRY_IO_COUNT)
  620. goto retry;
  621. f2fs_stop_checkpoint(sbi, false, STOP_CP_REASON_UPDATE_INODE);
  622. return;
  623. }
  624. f2fs_update_inode(inode, node_page);
  625. f2fs_put_page(node_page, 1);
  626. }
  627. int f2fs_write_inode(struct inode *inode, struct writeback_control *wbc)
  628. {
  629. struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
  630. if (inode->i_ino == F2FS_NODE_INO(sbi) ||
  631. inode->i_ino == F2FS_META_INO(sbi))
  632. return 0;
  633. /*
  634. * atime could be updated without dirtying f2fs inode in lazytime mode
  635. */
  636. if (f2fs_is_time_consistent(inode) &&
  637. !is_inode_flag_set(inode, FI_DIRTY_INODE))
  638. return 0;
  639. if (!f2fs_is_checkpoint_ready(sbi))
  640. return -ENOSPC;
  641. /*
  642. * We need to balance fs here to prevent from producing dirty node pages
  643. * during the urgent cleaning time when running out of free sections.
  644. */
  645. f2fs_update_inode_page(inode);
  646. if (wbc && wbc->nr_to_write)
  647. f2fs_balance_fs(sbi, true);
  648. return 0;
  649. }
  650. /*
  651. * Called at the last iput() if i_nlink is zero
  652. */
  653. void f2fs_evict_inode(struct inode *inode)
  654. {
  655. struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
  656. struct f2fs_inode_info *fi = F2FS_I(inode);
  657. nid_t xnid = fi->i_xattr_nid;
  658. int err = 0;
  659. f2fs_abort_atomic_write(inode, true);
  660. if (fi->cow_inode) {
  661. clear_inode_flag(fi->cow_inode, FI_COW_FILE);
  662. iput(fi->cow_inode);
  663. fi->cow_inode = NULL;
  664. }
  665. trace_f2fs_evict_inode(inode);
  666. truncate_inode_pages_final(&inode->i_data);
  667. if ((inode->i_nlink || is_bad_inode(inode)) &&
  668. test_opt(sbi, COMPRESS_CACHE) && f2fs_compressed_file(inode))
  669. f2fs_invalidate_compress_pages(sbi, inode->i_ino);
  670. if (inode->i_ino == F2FS_NODE_INO(sbi) ||
  671. inode->i_ino == F2FS_META_INO(sbi) ||
  672. inode->i_ino == F2FS_COMPRESS_INO(sbi))
  673. goto out_clear;
  674. f2fs_bug_on(sbi, get_dirty_pages(inode));
  675. f2fs_remove_dirty_inode(inode);
  676. f2fs_destroy_extent_tree(inode);
  677. if (inode->i_nlink || is_bad_inode(inode))
  678. goto no_delete;
  679. err = f2fs_dquot_initialize(inode);
  680. if (err) {
  681. err = 0;
  682. set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
  683. }
  684. f2fs_remove_ino_entry(sbi, inode->i_ino, APPEND_INO);
  685. f2fs_remove_ino_entry(sbi, inode->i_ino, UPDATE_INO);
  686. f2fs_remove_ino_entry(sbi, inode->i_ino, FLUSH_INO);
  687. if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING))
  688. sb_start_intwrite(inode->i_sb);
  689. set_inode_flag(inode, FI_NO_ALLOC);
  690. i_size_write(inode, 0);
  691. retry:
  692. if (F2FS_HAS_BLOCKS(inode))
  693. err = f2fs_truncate(inode);
  694. if (time_to_inject(sbi, FAULT_EVICT_INODE))
  695. err = -EIO;
  696. if (!err) {
  697. f2fs_lock_op(sbi);
  698. err = f2fs_remove_inode_page(inode);
  699. f2fs_unlock_op(sbi);
  700. if (err == -ENOENT) {
  701. err = 0;
  702. /*
  703. * in fuzzed image, another node may has the same
  704. * block address as inode's, if it was truncated
  705. * previously, truncation of inode node will fail.
  706. */
  707. if (is_inode_flag_set(inode, FI_DIRTY_INODE)) {
  708. f2fs_warn(F2FS_I_SB(inode),
  709. "f2fs_evict_inode: inconsistent node id, ino:%lu",
  710. inode->i_ino);
  711. f2fs_inode_synced(inode);
  712. set_sbi_flag(sbi, SBI_NEED_FSCK);
  713. }
  714. }
  715. }
  716. /* give more chances, if ENOMEM case */
  717. if (err == -ENOMEM) {
  718. err = 0;
  719. goto retry;
  720. }
  721. if (err) {
  722. f2fs_update_inode_page(inode);
  723. if (dquot_initialize_needed(inode))
  724. set_sbi_flag(sbi, SBI_QUOTA_NEED_REPAIR);
  725. }
  726. if (!is_sbi_flag_set(sbi, SBI_IS_FREEZING))
  727. sb_end_intwrite(inode->i_sb);
  728. no_delete:
  729. dquot_drop(inode);
  730. stat_dec_inline_xattr(inode);
  731. stat_dec_inline_dir(inode);
  732. stat_dec_inline_inode(inode);
  733. stat_dec_compr_inode(inode);
  734. stat_sub_compr_blocks(inode,
  735. atomic_read(&fi->i_compr_blocks));
  736. if (likely(!f2fs_cp_error(sbi) &&
  737. !is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
  738. f2fs_bug_on(sbi, is_inode_flag_set(inode, FI_DIRTY_INODE));
  739. else
  740. f2fs_inode_synced(inode);
  741. /* for the case f2fs_new_inode() was failed, .i_ino is zero, skip it */
  742. if (inode->i_ino)
  743. invalidate_mapping_pages(NODE_MAPPING(sbi), inode->i_ino,
  744. inode->i_ino);
  745. if (xnid)
  746. invalidate_mapping_pages(NODE_MAPPING(sbi), xnid, xnid);
  747. if (inode->i_nlink) {
  748. if (is_inode_flag_set(inode, FI_APPEND_WRITE))
  749. f2fs_add_ino_entry(sbi, inode->i_ino, APPEND_INO);
  750. if (is_inode_flag_set(inode, FI_UPDATE_WRITE))
  751. f2fs_add_ino_entry(sbi, inode->i_ino, UPDATE_INO);
  752. }
  753. if (is_inode_flag_set(inode, FI_FREE_NID)) {
  754. f2fs_alloc_nid_failed(sbi, inode->i_ino);
  755. clear_inode_flag(inode, FI_FREE_NID);
  756. } else {
  757. /*
  758. * If xattr nid is corrupted, we can reach out error condition,
  759. * err & !f2fs_exist_written_data(sbi, inode->i_ino, ORPHAN_INO)).
  760. * In that case, f2fs_check_nid_range() is enough to give a clue.
  761. */
  762. }
  763. out_clear:
  764. fscrypt_put_encryption_info(inode);
  765. fsverity_cleanup_inode(inode);
  766. clear_inode(inode);
  767. }
  768. /* caller should call f2fs_lock_op() */
  769. void f2fs_handle_failed_inode(struct inode *inode)
  770. {
  771. struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
  772. struct node_info ni;
  773. int err;
  774. /*
  775. * clear nlink of inode in order to release resource of inode
  776. * immediately.
  777. */
  778. clear_nlink(inode);
  779. /*
  780. * we must call this to avoid inode being remained as dirty, resulting
  781. * in a panic when flushing dirty inodes in gdirty_list.
  782. */
  783. f2fs_update_inode_page(inode);
  784. f2fs_inode_synced(inode);
  785. /* don't make bad inode, since it becomes a regular file. */
  786. unlock_new_inode(inode);
  787. /*
  788. * Note: we should add inode to orphan list before f2fs_unlock_op()
  789. * so we can prevent losing this orphan when encoutering checkpoint
  790. * and following suddenly power-off.
  791. */
  792. err = f2fs_get_node_info(sbi, inode->i_ino, &ni, false);
  793. if (err) {
  794. set_sbi_flag(sbi, SBI_NEED_FSCK);
  795. set_inode_flag(inode, FI_FREE_NID);
  796. f2fs_warn(sbi, "May loss orphan inode, run fsck to fix.");
  797. goto out;
  798. }
  799. if (ni.blk_addr != NULL_ADDR) {
  800. err = f2fs_acquire_orphan_inode(sbi);
  801. if (err) {
  802. set_sbi_flag(sbi, SBI_NEED_FSCK);
  803. f2fs_warn(sbi, "Too many orphan inodes, run fsck to fix.");
  804. } else {
  805. f2fs_add_orphan_inode(inode);
  806. }
  807. f2fs_alloc_nid_done(sbi, inode->i_ino);
  808. } else {
  809. set_inode_flag(inode, FI_FREE_NID);
  810. }
  811. out:
  812. f2fs_unlock_op(sbi);
  813. /* iput will drop the inode object */
  814. iput(inode);
  815. }