[PATCH] use list_add_tail() instead of list_add()

This patch converts list_add(A, B.prev) to list_add_tail(A, &B) for
readability.

Acked-by: Karsten Keil <kkeil@suse.de>
Cc: Jan Harkes <jaharkes@cs.cmu.edu>
Acked-by: Jan Kara <jack@suse.cz>
AOLed-by: David Woodhouse <dwmw2@infradead.org>
Cc: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/fs/dcache.c b/fs/dcache.c
index b85fda3..6aa635f 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -638,7 +638,7 @@
 		 * of the unused list for prune_dcache
 		 */
 		if (!atomic_read(&dentry->d_count)) {
-			list_add(&dentry->d_lru, dentry_unused.prev);
+			list_add_tail(&dentry->d_lru, &dentry_unused);
 			dentry_stat.nr_unused++;
 			found++;
 		}