[PATCH 2/3] f2fs: introduce f2fs_flush_merged_bios for cleanup

[Chao Yu <chao2.yu@samsung.com>]

Add a new helper f2fs_flush_merged_bios to clean up redundant codes.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
---
 fs/f2fs/checkpoint.c | 4 +---
 fs/f2fs/data.c       | 7 +++++++
 fs/f2fs/f2fs.h       | 1 +
 fs/f2fs/super.c      | 7 ++-----
 4 files changed, 11 insertions(+), 8 deletions(-)

diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 2bac8a1..64bbd06 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -1141,9 +1141,7 @@ int write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
 
 	trace_f2fs_write_checkpoint(sbi->sb, cpc->reason, "finish block_ops");
 
-	f2fs_submit_merged_bio(sbi, DATA, WRITE);
-	f2fs_submit_merged_bio(sbi, NODE, WRITE);
-	f2fs_submit_merged_bio(sbi, META, WRITE);
+	f2fs_flush_merged_bios(sbi);
 
 	/*
 	 * update checkpoint pack index
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 060c5f7..e5c762b 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -200,6 +200,13 @@ void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *sbi,
 		__f2fs_submit_merged_bio(sbi, inode, page, ino, type, rw);
 }
 
+void f2fs_flush_merged_bios(struct f2fs_sb_info *sbi)
+{
+	f2fs_submit_merged_bio(sbi, DATA, WRITE);
+	f2fs_submit_merged_bio(sbi, NODE, WRITE);
+	f2fs_submit_merged_bio(sbi, META, WRITE);
+}
+
 /*
  * Fill the locked page with data located in the block address.
  * Return unlocked page.
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 6e88a66..0d25430 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1873,6 +1873,7 @@ void destroy_checkpoint_caches(void);
 void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int);
 void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *,
 				struct page *, nid_t, enum page_type, int);
+void f2fs_flush_merged_bios(struct f2fs_sb_info *);
 int f2fs_submit_page_bio(struct f2fs_io_info *);
 void f2fs_submit_page_mbio(struct f2fs_io_info *);
 void set_data_blkaddr(struct dnode_of_data *);
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index 10a32cf..7b62016 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -575,11 +575,8 @@ static void f2fs_put_super(struct super_block *sb)
 	mutex_unlock(&sbi->umount_mutex);
 
 	/* our cp_error case, we can wait for any writeback page */
-	if (get_pages(sbi, F2FS_WRITEBACK)) {
-		f2fs_submit_merged_bio(sbi, DATA, WRITE);
-		f2fs_submit_merged_bio(sbi, NODE, WRITE);
-		f2fs_submit_merged_bio(sbi, META, WRITE);
-	}
+	if (get_pages(sbi, F2FS_WRITEBACK))
+		f2fs_flush_merged_bios(sbi);
 
 	iput(sbi->node_inode);
 	iput(sbi->meta_inode);
-- 
2.7.0