f2fs: give priority to select unpinned section for foreground GC

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Previously, during foreground GC, if victims contain data of pinned file,
it will fail migration of the data, and meanwhile i_gc_failures of that
pinned file may increase, and when it exceeds threshold, GC will unpin
the file, result in breaking pinfile's semantics.

In order to mitigate such condition, let's record and skip section which
has pinned file's data and give priority to select unpinned one.

Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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Chao Yu 2022-05-06 18:30:31 +08:00 • committed by Jaegeuk Kim

parent 6b8beca0ed

commit 7141912962

3 changed files with 82 additions and 14 deletions

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85

fs/f2fs/gc.c

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8

fs/f2fs/segment.c

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3

fs/f2fs/segment.h

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