[PATCH] use list_add_tail in buffer_insert_list

[Christoph Hellwig]

This is a really old patch from the XFS tree.

We need to call list_add_tail in buffer_insert_list to preserve buffer
ordering.  This essential for a good extent layout with XFS's delayed
allocation and a while ago the reiserfs group requested the same change.

ACKed by sct.


--- 1.77/fs/buffer.c	Sun Aug  3 16:49:59 2003
+++ edited/fs/buffer.c	Tue Aug  5 01:42:38 2003
@@ -619,7 +655,7 @@
 	if (buffer_attached(bh))
 		list_del(&bh->b_inode_buffers);
 	set_buffer_attached(bh);
-	list_add(&bh->b_inode_buffers, list);
+	list_add_tail(&bh->b_inode_buffers, list);
 	spin_unlock(&lru_list_lock);
 }
 
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