BACKPORT: f2fs: skip GC if possible when checkpoint disabling
If the number of unusable blocks is not larger than
unusable capacity, we can skip GC when checkpoint
disabling.
Bug: 278486610
Bug: 285499270
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 2880f47b949f1f49e2d861ffbba91d57416be7d9)
[ qixiaoyu1: Resolved minor conflict in fs/f2fs/super.c ]
Change-Id: Ic37debb3fbb9d863cb1b0f539cc992dd08ad9f77
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 75340cd..a3c1359 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1995,6 +1995,11 @@
}
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 @@
goto restore_flag;
}
+skip_gc:
f2fs_down_write(&sbi->gc_lock);
cpc.reason = CP_PAUSE;
set_sbi_flag(sbi, SBI_CP_DISABLED);
