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linux/fs/f2fs/file.c
Chao Yu 9239611af7 f2fs: fix to mitigate overhead of f2fs_zero_post_eof_page() 
[ Upstream commit c2f7c32b25 ]

f2fs_zero_post_eof_page() may cuase more overhead due to invalidate_lock
and page lookup, change as below to mitigate its overhead:
- check new_size before grabbing invalidate_lock
- lookup and invalidate pages only in range of [old_size, new_size]

Fixes: ba8dac350f ("f2fs: fix to zero post-eof page")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2025-10-15 12:03:59 +02:00

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