f2fs: introduce f2fs_balance_fs_bg for some background jobs

This patch merges some background jobs into this new function.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 62b52f2f293a..8e5ca2869913 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -36,6 +36,14 @@ void f2fs_balance_fs(struct f2fs_sb_info *sbi)
         }
 }
 
+void f2fs_balance_fs_bg(struct f2fs_sb_info *sbi)
+{
+        /* check the # of cached NAT entries and prefree segments */
+        if (try_to_free_nats(sbi, NAT_ENTRY_PER_BLOCK) ||
+                                excess_prefree_segs(sbi))
+                f2fs_sync_fs(sbi->sb, true);
+}
+
 static void __locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno,
                 enum dirty_type dirty_type)
 {