f2fs: return writeback error from collapse range

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f2fs_collapse_range() writes back pages moved by f2fs_do_collapse(),
but ignores the return value. If writeback fails, the ioctl can still
truncate page cache, shrink blocks, and report success.

Return the error before truncating page cache or updating the file size.

Fixes: b4ace33703 ("f2fs: support FALLOC_FL_COLLAPSE_RANGE")
Cc: stable@kernel.org
Assisted-by: Codex:gpt-5.5
Signed-off-by: Wenjie Qi <qiwenjie@xiaomi.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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Wenjie Qi 2026-07-27 15:49:10 +08:00 • committed by Jaegeuk Kim

parent 8517133274

commit f8a4108800

1 changed files with 4 additions and 1 deletions

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fs/f2fs/file.c

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