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f2fs: avoid frequent checkpoint during f2fs_gc

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Now we're doing SSR aggressively more than ever before, so once we reach to
the reserved_segment, f2fs_balance_fs will call f2fs_gc, which triggers
checkpoint everytime. We actually must avoid that.

Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Jaegeuk Kim 2017-04-07 17:25:54 -07:00
parent 4ddb1a4d4d
commit 8fd5a37efa
1 changed files with 5 additions and 3 deletions
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8
fs/f2fs/gc.c
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@ -966,9 +966,11 @@ int f2fs_gc(struct f2fs_sb_info *sbi, bool sync, bool background)
* threshold, we can make them free by checkpoint. Then, we
* secure free segments which doesn't need fggc any more.
*/
ret = write_checkpoint(sbi, &cpc);
if (ret)
goto stop;
if (prefree_segments(sbi)) {
ret = write_checkpoint(sbi, &cpc);
if (ret)
goto stop;
}
if (has_not_enough_free_secs(sbi, 0, 0))
gc_type = FG_GC;
}