f2fs: make locate_dirty_segment() as static

It's used only locally and could be static.

Signed-off-by: Haicheng Li <[email protected]>
Signed-off-by: Jaegeuk Kim <[email protected]>
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 77f31c0..b15debc 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -94,7 +94,7 @@
  * Adding dirty entry into seglist is not critical operation.
  * If a given segment is one of current working segments, it won't be added.
  */
-void locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno)
+static void locate_dirty_segment(struct f2fs_sb_info *sbi, unsigned int segno)
 {
 	struct dirty_seglist_info *dirty_i = DIRTY_I(sbi);
 	unsigned short valid_blocks;