f2fs: release cp and dnode lock before IPU

We don't need to rewrite the page under cp_rwsem and dnode locks.

Signed-off-by: Hou Pengyang <houpengyang@huawei.com>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 656e151..e302f30 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -312,6 +312,7 @@ static int __commit_inmem_pages(struct inode *inode,
 			fio.page = page;
 			fio.old_blkaddr = NULL_ADDR;
 			fio.encrypted_page = NULL;
+			fio.need_lock = false,
 			err = do_write_data_page(&fio);
 			if (err) {
 				unlock_page(page);