linux/fs/ext4
Zhang Yi 200627f46e ext4: correct the hole length returned by ext4_map_blocks()
[ Upstream commit 6430dea07e ]

In ext4_map_blocks(), if we can't find a range of mapping in the
extents cache, we are calling ext4_ext_map_blocks() to search the real
path and ext4_ext_determine_hole() to determine the hole range. But if
the querying range was partially or completely overlaped by a delalloc
extent, we can't find it in the real extent path, so the returned hole
length could be incorrect.

Fortunately, ext4_ext_put_gap_in_cache() have already handle delalloc
extent, but it searches start from the expanded hole_start, doesn't
start from the querying range, so the delalloc extent found could not be
the one that overlaped the querying range, plus, it also didn't adjust
the hole length. Let's just remove ext4_ext_put_gap_in_cache(), handle
delalloc and insert adjusted hole extent in ext4_ext_determine_hole().

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Suggested-by: Jan Kara <jack@suse.cz>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20240127015825.1608160-4-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-01 13:26:28 +01:00
..
.kunitconfig ext4: add .kunitconfig fragment to enable ext4-specific tests 2021-02-11 23:16:30 -05:00
acl.c fs/ext4: fix comments mentioning i_mutex 2022-02-03 10:57:53 -05:00
acl.h ext4: apply umask if ACL support is disabled 2023-11-28 17:07:21 +00:00
balloc.c ext4: add correct group descriptors and reserved GDT blocks to system zone 2023-09-19 12:28:05 +02:00
bitmap.c
block_validity.c ext4: add correct group descriptors and reserved GDT blocks to system zone 2023-09-19 12:28:05 +02:00
crypto.c ext4: fix memory leaks in ext4_fname_{setup_filename,prepare_lookup} 2023-09-19 12:28:05 +02:00
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: use ext4_debug() instead of jbd_debug() 2022-08-02 23:52:19 -04:00
ext4_jbd2.h fs/ext4: fix comments mentioning i_mutex 2022-02-03 10:57:53 -05:00
ext4.h ext4: add correct group descriptors and reserved GDT blocks to system zone 2023-09-19 12:28:05 +02:00
extents_status.c ext4: make sure allocate pending entry not fail 2023-12-03 07:32:10 +01:00
extents_status.h
extents.c ext4: correct the hole length returned by ext4_map_blocks() 2024-03-01 13:26:28 +01:00
fast_commit.c ext4: use ext4_fc_tl_mem in fast-commit replay path 2023-03-11 13:55:22 +01:00
fast_commit.h ext4: add missing validation of fast-commit record lengths 2023-01-07 11:12:00 +01:00
file.c ext4: fix warning in ext4_dio_write_end_io() 2023-12-20 17:00:14 +01:00
fsmap.c ext4: fix another off-by-one fsmap error on 1k block filesystems 2023-03-17 08:50:16 +01:00
fsmap.h ext4: fsmap: fix the block/inode bitmap comment 2021-06-24 09:48:29 -04:00
fsync.c block: use an on-stack bio in blkdev_issue_flush 2021-01-27 09:51:48 -07:00
hash.c ext4: improve error handling from ext4_dirhash() 2023-05-17 11:53:58 +02:00
ialloc.c ext4: allow ext4_get_group_info() to fail 2023-05-24 17:32:33 +01:00
indirect.c ext4: only update i_reserved_data_blocks on successful block allocation 2023-07-23 13:49:34 +02:00
inline.c ext4: bail out of ext4_xattr_ibody_get() fails for any reason 2023-05-17 11:53:58 +02:00
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: mark buffer new if it is unwritten to avoid stale data exposure 2023-11-28 17:07:21 +00:00
ioctl.c ext4: fix to check return value of freeze_bdev() in ext4_shutdown() 2023-07-23 13:49:34 +02:00
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: avoid allocating blocks from corrupted group in ext4_mb_find_by_goal() 2024-03-01 13:26:26 +01:00
mballoc.h ext4: add two helper functions extent_logical_end() and pa_logical_end() 2023-11-02 09:35:32 +01:00
migrate.c ext4: fix warning in 'ext4_da_release_space' 2022-11-06 01:07:59 -04:00
mmp.c ext4: reflect error codes from ext4_multi_mount_protect() to its callers 2023-05-24 17:32:33 +01:00
move_extent.c ext4: fix double-free of blocks due to wrong extents moved_len 2024-02-23 09:12:39 +01:00
namei.c ext4: fix rec_len verify error 2023-09-23 11:11:12 +02:00
orphan.c ext4: remove trailing newline from ext4_msg() message 2023-01-07 11:11:58 +01:00
page-io.c ext4: fix cgroup writeback accounting with fs-layer encryption 2023-03-17 08:50:16 +01:00
readpage.c fscrypt: stop using PG_error to track error status 2022-09-06 15:15:56 -07:00
resize.c ext4: avoid online resizing failures due to oversized flex bg 2024-02-05 20:12:49 +00:00
super.c ext4: turn quotas off if mount failed after enabling quotas 2023-07-23 13:49:34 +02:00
symlink.c ext4: fix reading leftover inlined symlinks 2022-08-02 23:37:50 -04:00
sysfs.c ext4: Fix function prototype mismatch for ext4_feat_ktype 2023-02-25 11:25:43 +01:00
truncate.h ext4: Convert to use mapping->invalidate_lock 2021-07-13 14:29:00 +02:00
verity.c fs: ext4: initialize fsdata in pagecache_write() 2023-01-07 11:11:58 +01:00
xattr_hurd.c acl: handle idmapped mounts 2021-01-24 14:27:17 +01:00
xattr_security.c acl: handle idmapped mounts 2021-01-24 14:27:17 +01:00
xattr_trusted.c acl: handle idmapped mounts 2021-01-24 14:27:17 +01:00
xattr_user.c acl: handle idmapped mounts 2021-01-24 14:27:17 +01:00
xattr.c ext4: correct inline offset when handling xattrs in inode body 2023-07-27 08:50:31 +02:00
xattr.h ext4: remove EA inode entry from mbcache on inode eviction 2022-08-02 23:56:25 -04:00