linux/fs/ext4
Baokun Li bda3efaf77 ext4: use pre-allocated es in __es_remove_extent()
When splitting extent, if the second extent can not be dropped, we return
-ENOMEM and use GFP_NOFAIL to preallocate an extent_status outside of
i_es_lock and pass it to __es_remove_extent() to be used as the second
extent. This ensures that __es_remove_extent() is executed successfully,
thus ensuring consistency in the extent status tree. If the second extent
is not undroppable, we simply drop it and return 0. Then retry is no longer
necessary, remove it.

Now, __es_remove_extent() will always remove what it should, maybe more.

Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Baokun Li <libaokun1@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230424033846.4732-6-libaokun1@huawei.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2023-06-26 19:35:12 -04:00
..
.kunitconfig ext4: add .kunitconfig fragment to enable ext4-specific tests 2021-02-11 23:16:30 -05:00
acl.c fs: port acl to mnt_idmap 2023-01-19 09:24:28 +01:00
acl.h fs: port ->set_acl() to pass mnt_idmap 2023-01-19 09:24:27 +01:00
balloc.c ext4: drop the call to ext4_error() from ext4_get_group_info() 2023-06-14 22:24:05 -04:00
bitmap.c ext4: remove useless conditional branch code 2023-04-19 23:39:08 -04:00
block_validity.c ext4: add ext4_sb_block_valid() refactored out of ext4_inode_block_valid() 2022-02-25 21:34:56 -05:00
crypto.c ext4: refactor and move ext4_ioctl_get_encryption_pwsalt() 2022-05-21 22:24:24 -04:00
dir.c ext4: fix spelling errors in comments 2022-05-11 15:19:06 -04:00
ext4_extents.h ext4: fix sparse warnings 2021-08-30 23:36:50 -04:00
ext4_jbd2.c ext4: split ext4_journal_start trace for debug 2022-12-01 10:46:54 -05:00
ext4_jbd2.h ext4: split ext4_journal_start trace for debug 2022-12-01 10:46:54 -05:00
ext4.h ext4: Give symbolic names to mballoc criterias 2023-06-26 19:34:56 -04:00
extents_status.c ext4: use pre-allocated es in __es_remove_extent() 2023-06-26 19:35:12 -04:00
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 2023-04-28 12:56:35 -04:00
fast_commit.c ext4: use ext4_fc_tl_mem in fast-commit replay path 2023-02-09 10:43:23 -05:00
fast_commit.h ext4: add missing validation of fast-commit record lengths 2022-12-08 21:49:24 -05:00
file.c fs: add FMODE_DIO_PARALLEL_WRITE flag 2023-04-03 07:14:20 -06:00
fsmap.c ext4: fix another off-by-one fsmap error on 1k block filesystems 2023-03-07 20:20:48 -05:00
fsmap.h ext4: fsmap: fix the block/inode bitmap comment 2021-06-24 09:48:29 -04:00
fsync.c ext4: fix fsync for non-directories 2023-05-30 15:33:57 -04:00
hash.c ext4: improve error handling from ext4_dirhash() 2023-05-13 18:05:05 -04:00
ialloc.c ext4: allow ext4_get_group_info() to fail 2023-05-13 18:02:46 -04:00
indirect.c ext4: only update i_reserved_data_blocks on successful block allocation 2023-06-26 19:34:56 -04:00
inline.c ext4: Make ext4_write_inline_data_end() use folio 2023-06-15 00:02:10 -04:00
inode-test.c fs: ext4: Modify inode-test.c to use KUnit parameterized testing feature 2020-12-02 16:07:25 -07:00
inode.c ext4: only update i_reserved_data_blocks on successful block allocation 2023-06-26 19:34:56 -04:00
ioctl.c Bug fixes and regressions for ext4, the most serious of which is a 2023-03-12 08:55:55 -07:00
Kconfig ext: EXT4_KUNIT_TESTS should depend on EXT4_FS instead of selecting it 2021-02-11 23:12:59 -05:00
Makefile ext4: move ext4 crypto code to its own file crypto.c 2022-05-21 22:24:24 -04:00
mballoc.c ext4: Give symbolic names to mballoc criterias 2023-06-26 19:34:56 -04:00
mballoc.h ext4: Give symbolic names to mballoc criterias 2023-06-26 19:34:56 -04:00
migrate.c ext4: avoid deadlock in fs reclaim with page writeback 2023-05-13 18:05:04 -04:00
mmp.c ext4: fix lockdep warning when enabling MMP 2023-05-07 21:11:18 -04:00
move_extent.c - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 2023-04-27 19:42:02 -07:00
namei.c ext4: improve error handling from ext4_dirhash() 2023-05-13 18:05:05 -04:00
orphan.c ext4: remove trailing newline from ext4_msg() message 2022-12-08 21:49:23 -05:00
page-io.c ext4: remove unneeded check of nr_to_submit 2023-04-19 23:38:33 -04:00
readpage.c ext4: Call fsverity_verify_folio() 2023-06-15 00:02:10 -04:00
resize.c ext4: remove unused group parameter in ext4_block_bitmap_csum_set 2023-03-23 23:00:08 -04:00
super.c ext4: Ensure ext4_mb_prefetch_fini() is called for all prefetched BGs 2023-06-26 19:34:56 -04:00
symlink.c fs: port ->getattr() to pass mnt_idmap 2023-01-19 09:24:25 +01:00
sysfs.c ext4: Give symbolic names to mballoc criterias 2023-06-26 19:34:56 -04:00
truncate.h ext4: Convert to use mapping->invalidate_lock 2021-07-13 14:29:00 +02:00
verity.c - Nick Piggin's "shoot lazy tlbs" series, to improve the peformance of 2023-04-27 19:42:02 -07:00
xattr_hurd.c fs: port xattr to mnt_idmap 2023-01-19 09:24:28 +01:00
xattr_security.c fs: port xattr to mnt_idmap 2023-01-19 09:24:28 +01:00
xattr_trusted.c fs: port xattr to mnt_idmap 2023-01-19 09:24:28 +01:00
xattr_user.c fs: port xattr to mnt_idmap 2023-01-19 09:24:28 +01:00
xattr.c ext4: only check dquot_initialize_needed() when debugging 2023-06-08 10:06:40 -04:00
xattr.h ext4: remove EA inode entry from mbcache on inode eviction 2022-08-02 23:56:25 -04:00