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f2fs: add GC_URGENT_LOW mode in gc_urgent

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Added a new gc_urgent mode, GC_URGENT_LOW, in which mode
F2FS will lower the bar of checking idle in order to
process outstanding discard commands and GC a little bit
aggressively.

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Daeho Jeong
2020-07-02 13:14:14 +09:00
committed by Jaegeuk Kim
parent 6b12367da2
commit 0e5e81114d
5 changed files with 23 additions and 11 deletions
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4
fs/f2fs/segment.c
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@@ -174,7 +174,7 @@ bool f2fs_need_SSR(struct f2fs_sb_info *sbi)
if (f2fs_lfs_mode(sbi))
return false;
if (sbi->gc_mode == GC_URGENT)
if (sbi->gc_mode == GC_URGENT_HIGH)
return true;
if (unlikely(is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
return true;
@@ -1759,7 +1759,7 @@ static int issue_discard_thread(void *data)
continue;
}
if (sbi->gc_mode == GC_URGENT)
if (sbi->gc_mode == GC_URGENT_HIGH)
__init_discard_policy(sbi, &dpolicy, DPOLICY_FORCE, 1);
sb_start_intwrite(sbi->sb);