f2fs: avoid unnecessary checkpoints

During the f2fs_put_super procedure, we don't need to conduct checkpoint all
the time, since we don't need to do that if superblock is clean.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index fde8e6aca9be..539c009d4138 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -372,7 +372,9 @@ static void f2fs_put_super(struct super_block *sb)
         f2fs_destroy_stats(sbi);
         stop_gc_thread(sbi);
 
-        write_checkpoint(sbi, true);
+        /* We don't need to do checkpoint when it's clean */
+        if (sbi->s_dirty && get_pages(sbi, F2FS_DIRTY_NODES))
+                write_checkpoint(sbi, true);
 
         iput(sbi->node_inode);
         iput(sbi->meta_inode);