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authorChao Yu <chao@kernel.org>2022-03-18 17:02:30 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2022-03-18 09:13:02 -0700
commit98e92867b99761979f6d4c155b7d5a5b523412a3 (patch)
tree3af8cbdbf8e32a7c7c52aabd7d577719d1330dd6 /fs/f2fs
parent9b56adcf525522e9ffa52471260298d91fc1d395 (diff)
downloadlinux-98e92867b99761979f6d4c155b7d5a5b523412a3.tar.bz2
f2fs: use aggressive GC policy during f2fs_disable_checkpoint()
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>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/super.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 9176597fdf94..caceb80b87ec 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -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;
}