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d48b7eea94
android_kernel_xiaomi_sm8450/fs/ext4
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Jan Kara d48b7eea94 ext4: fix lockdep warning when enabling MMP 
[ Upstream commit 949f95ff39bf188e594e7ecd8e29b82eb108f5bf ]

When we enable MMP in ext4_multi_mount_protect() during mount or
remount, we end up calling sb_start_write() from write_mmp_block(). This
triggers lockdep warning because freeze protection ranks above s_umount
semaphore we are holding during mount / remount. The problem is harmless
because we are guaranteed the filesystem is not frozen during mount /
remount but still let's fix the warning by not grabbing freeze
protection from ext4_multi_mount_protect().

Cc: stable@kernel.org
Reported-by: syzbot+6b7df7d5506b32467149@syzkaller.appspotmail.com
Link: https://syzkaller.appspot.com/bug?id=ab7e5b6f400b7778d46f01841422e5718fb81843
Signed-off-by: Jan Kara <jack@suse.cz>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Link: https://lore.kernel.org/r/20230411121019.21940-1-jack@suse.cz
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-05-30 12:57:47 +01:00
..
acl.c ext4: use ext4_journal_start/stop for fast commit transactions 2023-05-17 11:47:32 +02:00
acl.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: fix WARNING in mb_find_extent 2023-05-17 11:48:16 +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: add ext4_sb_block_valid() refactored out of ext4_inode_block_valid() 2023-03-17 08:45:16 +01:00
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: add ext4_sb_block_valid() refactored out of ext4_inode_block_valid() 2023-03-17 08:45:16 +01:00
extents_status.c ext4: fix data races when using cached status extents 2023-05-17 11:48:17 +02:00
extents_status.h ext4: fix extent_status trace points 2020-01-25 02:03:03 -05:00
extents.c ext4: fix use-after-free read in ext4_find_extent for bigalloc + inline 2023-05-17 11:48:03 +02:00
fast_commit.c ext4: don't set up encryption key during jbd2 transaction 2023-01-14 10:16:51 +01:00
fast_commit.h ext4: disable fast-commit of encrypted dir operations 2023-01-14 10:16:51 +01:00
file.c ext4: use ext4_journal_start/stop for fast commit transactions 2023-05-17 11:47:32 +02:00
fsmap.c ext4: fix another off-by-one fsmap error on 1k block filesystems 2023-03-17 08:45:06 +01:00
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: make directory inode spreading reflect flexbg size 2022-09-28 11:10:41 +02:00
indirect.c ext4: fix various seppling typos 2023-01-14 10:16:43 +01:00
inline.c ext4: bail out of ext4_xattr_ibody_get() fails for any reason 2023-05-17 11:48:17 +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: check iomap type only if ext4_iomap_begin() does not fail 2023-05-17 11:48:17 +02:00
ioctl.c ext4: use ext4_journal_start/stop for fast commit transactions 2023-05-17 11:47:32 +02:00
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: remove a BUG_ON in ext4_mb_release_group_pa() 2023-05-17 11:48:17 +02:00
mballoc.h ext4: fix various seppling typos 2023-01-14 10:16:43 +01:00
migrate.c ext4: fix various seppling typos 2023-01-14 10:16:43 +01:00
mmp.c ext4: fix lockdep warning when enabling MMP 2023-05-30 12:57:47 +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 possible double unlock when moving a directory 2023-03-22 13:30:02 +01:00
page-io.c ext4: fix cgroup writeback accounting with fs-layer encryption 2023-03-17 08:45:06 +01:00
readpage.c Improvements to ext4's block allocator performance for very large file 2020-08-21 11:03:38 -07:00
resize.c ext4: fix corruption when online resizing a 1K bigalloc fs 2023-01-14 10:16:39 +01:00
super.c ext4: don't clear SB_RDONLY when remounting r/w until quota is re-enabled 2023-05-30 12:57:47 +01:00
symlink.c ext4: report correct st_size for encrypted symlinks 2021-09-08 08:48:59 +02:00
sysfs.c ext4: Fix function prototype mismatch for ext4_feat_ktype 2023-02-25 11:55:04 +01:00
truncate.h ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
verity.c fs: ext4: initialize fsdata in pagecache_write() 2023-01-14 10:16:43 +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: fix invalid free tracking in ext4_xattr_move_to_block() 2023-05-17 11:48:18 +02:00
xattr.h ext4: remove duplicate definition of ext4_xattr_ibody_inline_set() 2023-04-26 11:27:41 +02:00