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BACKPORT: f2fs: skip GC if possible when checkpoint disabling

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If the number of unusable blocks is not larger than
unusable capacity, we can skip GC when checkpoint
disabling.

Bug: 278486610
Signed-off-by: Weichao Guo <guoweichao@oppo.com>
Signed-off-by: Chao Yu <chao@kernel.org>
[Jaegeuk Kim: Fix missing gc_mode assignment]
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
(cherry picked from commit 2880f47b94)
[ qixiaoyu1: Resolved minor conflict in fs/f2fs/super.c ]
Change-Id: Ic37debb3fbb9d863cb1b0f539cc992dd08ad9f77
This commit is contained in:
Weichao Guo
2022-05-07 00:28:14 +08:00
committed by Todd Kjos
parent 851de32d27
commit a4420dc21f
1 changed files with 6 additions and 0 deletions
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6
fs/f2fs/super.c
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@@ -1995,6 +1995,11 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
}
sbi->sb->s_flags |= SB_ACTIVE;
/* check if we need more GC first */
unusable = f2fs_get_unusable_blocks(sbi);
if (!f2fs_disable_cp_again(sbi, unusable))
goto skip_gc;
f2fs_update_time(sbi, DISABLE_TIME);
while (!f2fs_time_over(sbi, DISABLE_TIME)) {
@@ -2020,6 +2025,7 @@ static int f2fs_disable_checkpoint(struct f2fs_sb_info *sbi)
goto restore_flag;
}
skip_gc:
f2fs_down_write(&sbi->gc_lock);
cpc.reason = CP_PAUSE;
set_sbi_flag(sbi, SBI_CP_DISABLED);