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a46b3d8498
android_kernel_xiaomi_sm8450/fs/ext4
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Ye Bin a46b3d8498 ext4: fix symlink file size not match to file content 
commit a2b0b205d125f27cddfb4f7280e39affdaf46686 upstream.

We got issue as follows:
[home]# fsck.ext4  -fn  ram0yb
e2fsck 1.45.6 (20-Mar-2020)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Symlink /p3/d14/d1a/l3d (inode #3494) is invalid.
Clear? no
Entry 'l3d' in /p3/d14/d1a (3383) has an incorrect filetype (was 7, should be 0).
Fix? no

As the symlink file size does not match the file content. If the writeback
of the symlink data block failed, ext4_finish_bio() handles the end of IO.
However this function fails to mark the buffer with BH_write_io_error and
so when unmount does journal checkpoint it cannot detect the writeback
error and will cleanup the journal. Thus we've lost the correct data in the
journal area. To solve this issue, mark the buffer as BH_write_io_error in
ext4_finish_bio().

Cc: stable@kernel.org
Signed-off-by: Ye Bin <yebin10@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20220321144438.201685-1-yebin10@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-27 13:53:56 +02:00
..
acl.c ext4: main fast-commit commit path 2020-10-21 23:22:37 -04:00
acl.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: shrink race window in ext4_should_retry_alloc() 2021-04-07 15:00:03 +02:00
bitmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
block_validity.c ext4: rename system_blks to s_system_blks inside ext4_sb_info 2020-10-18 10:36:59 -04:00
dir.c ext4: fix potential infinite loop in ext4_dx_readdir() 2021-10-06 15:56:02 +02:00
ext4_extents.h ext4: fix EXT_MAX_EXTENT/INDEX to check for zeroed eh_max 2020-06-03 23:16:49 -04:00
ext4_jbd2.c ext4: fix null-ptr-deref in '__ext4_journal_ensure_credits' 2022-01-27 10:54:28 +01:00
ext4_jbd2.h ext4: drop ext4_journal_free_reserved() 2020-06-03 23:16:53 -04:00
ext4.h ext4: fix fallocate to use file_modified to update permissions consistently 2022-04-27 13:53:56 +02:00
extents_status.c ext4: remove check for zero nr_to_scan in ext4_es_scan() 2021-07-14 16:55:41 +02:00
extents_status.h ext4: fix extent_status trace points 2020-01-25 02:03:03 -05:00
extents.c ext4: fix fallocate to use file_modified to update permissions consistently 2022-04-27 13:53:56 +02:00
fast_commit.c ext4: fix incorrect type issue during replay_del_range 2022-02-08 18:30:41 +01:00
fast_commit.h ext4: fix fast commit alignment issues 2021-06-10 13:39:26 +02:00
file.c ext4: Fix occasional generic/418 failure 2021-05-11 14:47:38 +02:00
fsmap.c treewide: Change list_sort to use const pointers 2021-09-30 10:11:04 +02:00
fsmap.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
fsync.c ext4: make s_mount_flags modifications atomic 2020-11-06 23:01:05 -05:00
hash.c ext4: use generic casefolding support 2020-10-28 13:43:13 -04:00
ialloc.c ext4: fix avefreec in find_group_orlov 2021-07-14 16:55:41 +02:00
indirect.c ext4: use ext4_sb_bread() instead of sb_bread() 2020-10-18 10:37:14 -04:00
inline.c ext4: fix fs corruption when tring to remove a non-empty directory with IO error 2022-04-08 14:39:55 +02:00
inode-test.c kunit: allow kunit tests to be loaded as a module 2020-01-09 16:42:29 -07:00
inode.c ext4: fix fallocate to use file_modified to update permissions consistently 2022-04-27 13:53:56 +02:00
ioctl.c ext4: avoid trim error on fs with small groups 2022-01-27 10:54:04 +01:00
Kconfig ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting it 2021-03-04 11:38:15 +01:00
Makefile ext4 / jbd2: add fast commit initialization 2020-10-21 23:22:26 -04:00
mballoc.c ext4: fix ext4_mb_mark_bb() with flex_bg with fast_commit 2022-04-08 14:40:32 +02:00
mballoc.h ext4: limit the length of per-inode prealloc list 2020-08-19 12:04:36 -04:00
migrate.c ext4: don't use the orphan list when migrating an inode 2022-01-27 10:54:28 +01:00
mmp.c ext4: fix possible UAF when remounting r/o a mmp-protected file system 2021-11-02 19:48:18 +01:00
move_extent.c ext4: use common helpers in all places reading metadata buffers 2020-10-18 10:37:14 -04:00
namei.c ext4: fix fs corruption when tring to remove a non-empty directory with IO error 2022-04-08 14:39:55 +02:00
page-io.c ext4: fix symlink file size not match to file content 2022-04-27 13:53:56 +02:00
readpage.c Improvements to ext4's block allocator performance for very large file 2020-08-21 11:03:38 -07:00
resize.c ext4: add check to prevent attempting to resize an fs with sparse_super2 2022-03-16 14:16:03 +01:00
super.c ext4: destroy ext4_fc_dentry_cachep kmemcache on module removal 2022-01-27 10:54:28 +01:00
symlink.c ext4: report correct st_size for encrypted symlinks 2021-09-08 08:48:59 +02:00
sysfs.c ext4: shrink race window in ext4_should_retry_alloc() 2021-04-07 15:00:03 +02:00
truncate.h ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
verity.c ext4: fix error handling in ext4_end_enable_verity() 2021-03-25 09:04:17 +01:00
xattr_hurd.c ext4: support xattr gnu.* namespace for the Hurd 2020-06-12 13:23:34 -04:00
xattr_security.c ext4: use XATTR_CREATE in ext4_initxattrs() 2018-05-10 11:52:14 -04:00
xattr_trusted.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr_user.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr.c ext4: add reclaim checks to xattr code 2021-03-30 14:32:08 +02:00
xattr.h ext4: support xattr gnu.* namespace for the Hurd 2020-06-12 13:23:34 -04:00