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| author | Zhang Yi <yi.zhang@huawei.com> | 2026-10-09 18:30:04 +0800 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2026-10-15 10:53:11 -0400 |
| commit | 5b7a0efa8590929e44ae6b3777502314bd6a07a0 (patch) | |
| tree | 03a818d1d2f5fcfd2d35eb0d8fbea9bf60b6e388 /scripts/Makefile.thinlto | |
| parent | bbe1fc8a29c052237493cd8f56ef1d81f81865dc (diff) | |
| download | linux-5b7a0efa8590929e44ae6b3777502314bd6a07a0.tar.gz linux-5b7a0efa8590929e44ae6b3777502314bd6a07a0.zip | |
ext4: set EXT4_MAP_NEW flag for delayed allocated blocks
Set EXT4_MAP_NEW in ext4_da_map_blocks() to properly indicate that a
new delayed allocation block has been inserted, allowing callers to
distinguish newly created delayed extents from existing ones.
Currently, the buffer_head caller, ext4_da_get_block_prep(), does not
consume this flag. It intercepts EXT4_MAP_DELAYED and returns early, and
unconditionally calls set_buffer_new(bh) so EXT4_MAP_NEW is not used.
The flag is prepared for the iomap buffered I/O path added later.
Reported-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Link: https://lore.kernel.org/linux-ext4/cc05c17d-163e-4251-b2c9-aa3a6f9555d7@huaweicloud.com/
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Ojaswin Mujoo <ojaswin@linux.ibm.com>
Tested-by: syzbot@syzkaller.appspotmail.com
Link: https://patch.msgid.link/20261009103033.2920530-4-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Diffstat (limited to 'scripts/Makefile.thinlto')
0 files changed, 0 insertions, 0 deletions