[PATCH 10/11] writeback: remove redirty_tail()

[Fengguang Wu <wfg@mail.ustc.edu.cn>]

Remove redirty_tail(). It's no longer used.

Cc: Michael Rubin <mrubin@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Fengguang Wu <wfg@mail.ustc.edu.cn>
---
 fs/fs-writeback.c |   24 ------------------------
 1 file changed, 24 deletions(-)

--- linux-2.6.24-rc6-mm1.orig/fs/fs-writeback.c
+++ linux-2.6.24-rc6-mm1/fs/fs-writeback.c
@@ -146,34 +146,10 @@ static int write_inode(struct inode *ino
 		return inode->i_sb->s_op->write_inode(inode, sync);
 	return 0;
 }
 
 /*
- * Redirty an inode: set its when-it-was dirtied timestamp and move it to the
- * furthest end of its superblock's dirty-inode list.
- *
- * Before stamping the inode's ->dirtied_when, we check to see whether it is
- * already the most-recently-dirtied inode on the s_dirty list.  If that is
- * the case then the inode must have been redirtied while it was being written
- * out and we don't reset its dirtied_when.
- */
-static void redirty_tail(struct inode *inode)
-{
-	struct super_block *sb = inode->i_sb;
-
-	if (!list_empty(&sb->s_dirty)) {
-		struct inode *tail_inode;
-
-		tail_inode = list_entry(sb->s_dirty.next, struct inode, i_list);
-		if (!time_after_eq(inode->dirtied_when,
-				tail_inode->dirtied_when))
-			inode->dirtied_when = jiffies;
-	}
-	list_move(&inode->i_list, &sb->s_dirty);
-}
-
-/*
  * requeue inode for re-scanning after sb->s_io list is exhausted.
  */
 static void requeue_io(struct inode *inode)
 {
 	list_move(&inode->i_list, &inode->i_sb->s_more_io);

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