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f2fs: use aggressive GC policy during f2fs_disable_checkpoint()

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Let's enable GC_URGENT_HIGH mode during f2fs_disable_checkpoint(),
so that we can use SSR allocator for GCed data/node persistence,
it can improve the performance due to it avoiding migration of
data/node locates in selected target segment of SSR allocator.

Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Chao Yu 2022-03-18 17:02:30 +08:00 committed by Jaegeuk Kim
parent 9b56adcf52
commit 98e92867b9
1 changed files with 5 additions and 0 deletions
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5
fs/f2fs/super.c
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@ -2080,6 +2080,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
{
unsigned int s_flags = sbi->sb->s_flags;
struct cp_control cpc;
unsigned int gc_mode;
int err = 0;
int ret;
block_t unusable;
@ -2092,6 +2093,9 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
f2fs_update_time(sbi, DISABLE_TIME);
gc_mode = sbi->gc_mode;
sbi->gc_mode = GC_URGENT_HIGH;
while (!f2fs_time_over(sbi, DISABLE_TIME)) {
f2fs_down_write(&sbi->gc_lock);
err = f2fs_gc(sbi, true, false, false, NULL_SEGNO);
@ -2129,6 +2133,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
out_unlock:
f2fs_up_write(&sbi->gc_lock);
restore_flag:
sbi->gc_mode = gc_mode;
sbi->sb->s_flags = s_flags; /* Restore SB_RDONLY status */
return err;
}