Revert "f2fs: add ovp valid_blocks check for bg gc victim to fg_gc"

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For extreme case:
10 section, op = 10%, no_fggc_threshold = 90%
All section usage: 85% 85% 85% 85% 90% 90% 95% 95% 95% 95%

During foreground GC, if we skip select dirty section whose usage
is larger than no_fggc_threshold, we can only recycle 80% invalid
space from four 85% usage sections and two 90% usage sections,
result in encountering out-of-space issue.

This reverts commit e93b986525 to
fix this issue, besides, we keep the logic that we scan all dirty
section when searching a victim, so that GC can select victim with
least valid blocks.

Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>

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Chao Yu 2018-04-26 17:05:51 +08:00 • committed by Jaegeuk Kim

parent 868de6135f

commit 299254d85d

3 changed files with 0 additions and 28 deletions

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3

fs/f2fs/f2fs.h

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16

fs/f2fs/gc.c

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9

fs/f2fs/segment.h

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