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android_kernel_xiaomi_sm8450/fs
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Vyacheslav Dubeyko bd2c003532 hfsplus: fix remount issue 
Current implementation of HFS+ driver has small issue with remount
option.  Namely, for example, you are unable to remount from RO mode
into RW mode by means of command "mount -o remount,rw /dev/loop0
/mnt/hfsplus".  Trying to execute sequence of commands results in an
error message:

  mount /dev/loop0 /mnt/hfsplus
  mount -o remount,ro /dev/loop0 /mnt/hfsplus
  mount -o remount,rw /dev/loop0 /mnt/hfsplus

  mount: you must specify the filesystem type

  mount -t hfsplus -o remount,rw /dev/loop0 /mnt/hfsplus

  mount: /mnt/hfsplus not mounted or bad option

The reason of such issue is failure of mount syscall:

  mount("/dev/loop0", "/mnt/hfsplus", 0x2282a60, MS_MGC_VAL|MS_REMOUNT, NULL) = -1 EINVAL (Invalid argument)

Namely, hfsplus_parse_options_remount() method receives empty "input"
argument and return false in such case.  As a result, hfsplus_remount()
returns -EINVAL error code.

This patch fixes the issue by means of return true for the case of empty
"input" argument in hfsplus_parse_options_remount() method.

Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-03-04 07:55:49 -08:00
..
9p
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-01-28 08:38:04 -08:00
adfs
adfs: delayed freeing of sbi
2013-10-24 23:43:27 -04:00
affs
affs: use ->kill_sb() to simplify ->put_super() and failure exits of ->mount()
2014-01-25 03:13:01 -05:00
afs
afs: proc cells and rootcell are writeable
2014-02-01 10:59:39 -08:00
autofs4
autofs: fix symlinks aren't checked for expiry
2014-01-23 16:36:59 -08:00
befs
befs: iget_locked() doesn't return an ERR_PTR
2014-01-25 03:14:38 -05:00
bfs
truncate: drop 'oldsize' truncate_pagecache() parameter
2013-09-12 15:38:02 -07:00
btrfs
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs
2014-02-16 11:05:27 -08:00
cachefiles
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-11-13 15:34:18 +09:00
ceph
ceph: fix __dcache_readdir()
2014-02-17 12:37:13 -08:00
cifs
Merge branch 'for-linus' of git://git.samba.org/sfrench/cifs-2.6
2014-02-17 13:50:11 -08:00
coda
coda_revalidate_inode(): switch to passing inode...
2013-11-09 00:16:21 -05:00
configfs
configfs: fix race between dentry put and lookup
2013-11-21 16:42:27 -08:00
cramfs
cramfs: take headers to fs/cramfs
2014-01-25 03:13:02 -05:00
debugfs
debugfs: use list_next_entry() in debugfs_remove_recursive()
2013-11-13 12:09:24 +09:00
devpts
devpts: plug the memory leak in kill_sb
2013-11-13 12:09:36 +09:00
dlm
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
2014-01-25 11:17:34 -08:00
ecryptfs
ecryptfs: fix failure handling in ->readlink()
2014-01-25 03:13:00 -05:00
efivarfs
consolidate simple ->d_delete() instances
2013-11-15 22:04:17 -05:00
efs
efs: get rid of ->put_super()
2014-01-25 03:13:02 -05:00
exofs
exofs: Print less in r4w
2014-01-23 18:54:14 +02:00
exportfs
exportfs: fix quadratic behavior in filehandle lookup
2013-11-09 00:16:38 -05:00
ext2
ext2/3/4: use generic posix ACL infrastructure
2014-01-25 23:58:19 -05:00
ext3
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-01-28 08:38:04 -08:00
ext4
ext4: don't leave i_crtime.tv_sec uninitialized
2014-02-16 19:29:32 -05:00
f2fs
Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block
2014-01-30 11:19:05 -08:00
fat
fat: rcu-delay unloading nls and freeing sbi
2013-10-24 23:43:28 -04:00
freevxfs
[readdir] convert freevxfs
2013-06-29 12:56:53 +04:00
fscache
FS-Cache: Handle removal of unadded object to the fscache_object_list rb tree
2014-02-17 13:47:35 -08:00
fuse
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-01-28 08:38:04 -08:00
gfs2
Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block
2014-01-30 11:19:05 -08:00
hfs
fs/hfs/btree.h: remove duplicate defines
2013-11-13 12:09:32 +09:00
hfsplus
hfsplus: fix remount issue
2014-03-04 07:55:49 -08:00
hostfs
um: hostfs: make functions static
2014-01-26 11:51:09 +01:00
hpfs
hpfs: optimize quad buffer loading
2014-02-02 16:24:07 -08:00
hppfs
clean up scary strncpy(dst, src, strlen(src)) uses
2013-07-03 16:07:41 -07:00
hugetlbfs
cope with potentially long ->d_dname() output for shmem/hugetlb
2013-08-24 12:10:17 -04:00
isofs
isofs: don't pass dentry to isofs_hash{i,}_common()
2013-10-24 23:34:59 -04:00
jbd
jbd: Revise KERN_EMERG error messages
2013-12-04 12:27:46 +01:00
jbd2
jbd2: fix use after free in jbd2_journal_start_reserved()
2014-02-17 20:33:01 -05:00
jffs2
Merge tag 'for-linus-20140127' of git://git.infradead.org/linux-mtd
2014-01-28 18:56:37 -08:00
jfs
jfs: set i_ctime when setting ACL
2014-02-13 15:56:05 -06:00
kernfs
sysfs: fix namespace refcnt leak
2014-02-25 07:37:52 -08:00
lockd
lockd: send correct lock when granting a delayed lock.
2014-02-13 14:55:02 -05:00
logfs
Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block
2014-01-30 11:19:05 -08:00
minix
fs/minix: Drop dependency on H8300
2013-09-16 18:20:25 -07:00
ncpfs
ncpfs: rcu-delay unload_nls() and freeing ncp_server
2013-10-24 23:43:28 -04:00
nfs
Merge branch 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2014-02-20 12:01:09 -08:00
nfs_common
nfs_common: Update the translation between nfsv3 acls linux posix acls
2013-02-13 06:15:14 -08:00
nfsd
nfsd4: fix acl buffer overrun
2014-02-11 13:48:11 -05:00
nilfs2
Merge branch 'for-3.14/core' of git://git.kernel.dk/linux-block
2014-01-30 11:19:05 -08:00
nls
nls: have register_nls() set ->owner
2014-01-25 03:14:05 -05:00
notify
fsnotify: Allocate overflow events with proper type
2014-02-25 11:18:06 +01:00
ntfs
fix O_SYNC|O_APPEND syncing the wrong range on write()
2014-02-09 15:18:09 -05:00
ocfs2
ocfs2: fix quota file corruption
2014-03-04 07:55:48 -08:00
omfs
truncate: drop 'oldsize' truncate_pagecache() parameter
2013-09-12 15:38:02 -07:00
openpromfs
[readdir] convert openpromfs
2013-06-29 12:56:32 +04:00
proc
mm: close PageTail race
2014-03-04 07:55:47 -08:00
pstore
pstore: Don't allow high traffic options on fragile devices
2013-12-20 13:12:01 -08:00
qnx4
qnx4: clean qnx4_fill_super() up
2014-01-25 03:13:03 -05:00
qnx6
[readdir] convert qnx6
2013-06-29 12:56:39 +04:00
quota
quota: Fix race between dqput() and dquot_scan_active()
2014-02-20 21:57:04 +01:00
ramfs
fs/ramfs: move ramfs_aops to inode.c
2014-01-23 16:36:58 -08:00
reiserfs
reiserfs: fix utterly brain-damaged indentation.
2014-02-17 13:46:33 -08:00
romfs
romfs: fix returm err while getting inode in fill_super
2014-01-23 16:37:04 -08:00
squashfs
Squashfs: fix failure to unlock pages on decompress error
2013-11-24 01:02:50 +00:00
sysfs
sysfs: fix namespace refcnt leak
2014-02-25 07:37:52 -08:00
sysv
sysv: Add forgotten superblock lock init for v7 fs
2013-09-29 22:02:02 -04:00
ubifs
fs/ubifs: use rbtree postorder iteration helper instead of opencoding
2014-01-23 16:37:03 -08:00
udf
udf: Fix data corruption on file type conversion
2014-02-20 21:56:00 +01:00
ufs
truncate: drop 'oldsize' truncate_pagecache() parameter
2013-09-12 15:38:02 -07:00
xfs
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
2014-02-27 10:37:22 -08:00
aio.c
Merge git://git.kvack.org/~bcrl/aio-next
2013-12-22 11:03:49 -08:00
anon_inodes.c
... and kill anon_inode_getfile_private()
2013-11-09 00:16:28 -05:00
attr.c
fs: fix iversion handling
2013-12-05 16:36:21 -06:00
bad_inode.c
[readdir] ->readdir() is gone
2013-06-29 12:57:04 +04:00
binfmt_aout.c
dump_skip(): dump_seek() replacement taking coredump_params
2013-11-09 00:16:26 -05:00
binfmt_elf_fdpic.c
elf{,_fdpic} coredump: get rid of pointless if (siginfo->si_signo)
2013-11-09 00:16:30 -05:00
binfmt_elf.c
fs: binfmt_elf: remove unused defines INTERPRETER_NONE and INTERPRETER_ELF
2014-01-23 16:36:58 -08:00
binfmt_em86.c
file->f_op is never NULL...
2013-10-24 23:34:54 -04:00
binfmt_flat.c
new helper: read_code()
2013-04-29 15:40:23 -04:00
binfmt_misc.c
binfmt_misc: reuse string_unescape_inplace()
2013-04-30 17:04:03 -07:00
binfmt_script.c
exec: do not leave bprm->interp on stack
2012-12-20 17:40:19 -08:00
binfmt_som.c
get rid of pt_regs argument of ->load_binary()
2012-11-28 21:53:38 -05:00
bio-integrity.c
fs: Mark function as static in fs/bio-integrity.c
2014-02-09 13:56:23 -07:00
bio.c
block: Fix cloning of discard/write same bios
2014-02-11 08:40:45 -07:00
block_dev.c
Merge tag 'writeback-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux
2013-09-13 23:06:40 -04:00
buffer.c
mm: __set_page_dirty uses spin_lock_irqsave instead of spin_lock_irq
2014-02-06 13:48:51 -08:00
char_dev.c
Merge branch 'for-3.13/core' of git://git.kernel.dk/linux-block
2013-11-14 12:08:14 +09:00
compat_binfmt_elf.c
coredump: extend core dump note section to contain file names of mapped files
2012-10-06 03:05:17 +09:00
compat_ioctl.c
fs/compat_ioctl.c: fix an underflow issue (harmless)
2014-01-21 16:19:42 -08:00
compat.c
[readdir] constify ->actor
2013-06-29 12:57:05 +04:00
coredump.c
coredump: make __get_dumpable/get_dumpable inline, kill fs/coredump.h
2014-01-23 16:37:01 -08:00
dcache.c
__dentry_path() fixes
2014-01-26 12:37:55 -05:00
dcookies.c
fs/compat: fix lookup_dcookie() parameter handling
2014-01-29 16:22:40 -08:00
direct-io.c
block: Abstract out bvec iterator
2013-11-23 22:33:47 -08:00
drop_caches.c
shrinker: add node awareness
2013-09-10 18:56:31 -04:00
eventfd.c
eventfd_ctx_fdget(): use fdget() instead of fget()
2014-01-25 03:13:04 -05:00
eventpoll.c
epoll: do not take the nested ep->mtx on EPOLL_CTL_DEL
2014-01-02 14:40:30 -08:00
exec.c
execve: use 'struct filename *' for executable name passing
2014-02-05 12:54:53 -08:00
fcntl.c
file->f_op is never NULL...
2013-10-24 23:34:54 -04:00
fhandle.c
Merge branch 'for-3.8' of git://linux-nfs.org/~bfields/linux
2012-12-20 14:04:11 -08:00
file_table.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-11-13 15:34:18 +09:00
file.c
fs/file.c:fdtable: avoid triggering OOMs from alloc_fdmem
2014-02-10 16:01:41 -08:00
filesystems.c
fs: Limit sys_mount to only request filesystem modules.
2013-03-03 19:36:31 -08:00
fs_struct.c
seqcount: Add lockdep functionality to seqcount/seqlock structures
2013-11-06 12:40:26 +01:00
fs-writeback.c
Revert "writeback: do not sync data dirtied after sync start"
2014-02-22 02:02:28 +01:00
inode.c
locks: break delegations on any attribute modification
2013-11-09 00:16:44 -05:00
internal.h
get rid of s_files and files_lock
2013-11-09 00:16:20 -05:00
ioctl.c
file->f_op is never NULL...
2013-10-24 23:34:54 -04:00
ioprio.c
Merge branch 'for-3.5/core' of git://git.kernel.dk/linux-block
2012-05-30 08:52:42 -07:00
Kconfig
fs: remove generic_acl
2014-01-26 08:26:40 -05:00
Kconfig.binfmt
fs: make binfmt support for #! scripts modular and removable
2013-04-30 17:04:04 -07:00
libfs.c
consolidate simple ->d_delete() instances
2013-11-15 22:04:17 -05:00
locks.c
locks: missing unlock on error in generic_add_lease()
2013-11-13 07:30:53 -05:00
Makefile
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2014-01-28 08:38:04 -08:00
mbcache.c
fs: convert fs shrinkers to new scan/count API
2013-09-10 18:56:31 -04:00
mount.h
vfs: Is mounted should be testing mnt_ns for NULL or error.
2014-01-26 08:26:42 -05:00
mpage.c
block: Abstract out bvec iterator
2013-11-23 22:33:47 -08:00
namei.c
execve: use 'struct filename *' for executable name passing
2014-02-05 12:54:53 -08:00
namespace.c
Merge tag 'driver-core-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
2014-01-20 15:49:44 -08:00
no-block.c
llseek: automatically add .llseek fop
2010-10-15 15:53:27 +02:00
open.c
locks: break delegations on any attribute modification
2013-11-09 00:16:44 -05:00
pipe.c
fs/pipe.c: skip file_update_time on frozen fs
2014-01-23 16:37:00 -08:00
pnode.c
split __lookup_mnt() in two functions
2013-10-24 23:35:00 -04:00
pnode.h
vfs: Don't copy mount bind mounts of /proc/<pid>/ns/mnt between namespaces
2013-08-26 18:42:15 -07:00
posix_acl.c
fs: get_acl() must be allowed to return EOPNOTSUPP
2014-02-03 17:12:37 -05:00
proc_namespace.c
fs/proc_namespace.c: simplify testing nsp and nsp->mnt_ns
2014-01-23 16:37:02 -08:00
read_write.c
fs/compat: fix parameter handling for compat readv/writev syscalls
2014-01-29 16:22:39 -08:00
readdir.c
file->f_op is never NULL...
2013-10-24 23:34:54 -04:00
select.c
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2013-11-13 15:34:18 +09:00
seq_file.c
seq_file: always clear m->count when we free m->buf
2013-11-18 19:07:53 -08:00
signalfd.c
switch signalfd{,4}() to COMPAT_SYSCALL_DEFINE
2013-03-03 22:58:46 -05:00
splice.c
fuse: fix pipe_buf_operations
2014-01-22 19:36:57 +01:00
stack.c
fs: reduce the use of module.h wherever possible
2012-02-28 19:31:58 -05:00
stat.c
vfs: split out vfs_getattr_nosec
2013-11-09 00:16:31 -05:00
statfs.c
vfs: allow O_PATH file descriptors for fstatfs()
2013-10-12 13:12:31 -07:00
super.c
fs/super.c: sync ro remount after blocking writers
2014-01-31 14:29:36 -05:00
sync.c
Revert "writeback: do not sync data dirtied after sync start"
2014-02-22 02:02:28 +01:00
timerfd.c
timerfd: Add alarm timers
2013-05-29 12:57:34 -07:00
utimes.c
locks: break delegations on any attribute modification
2013-11-09 00:16:44 -05:00
xattr.c
vfs: make lremovexattr retry once on ESTALE error
2012-12-20 18:50:11 -05:00