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Subject: [PATCH] mb_cache_shrink() frees unexpected caches
From: Akinobu Mita <amgta@yacht.ocn.ne.jp>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@zip.com.au>
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Date: Thu, 14 Jul 2005 22:07:24 +0900
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mb_cache_shrink() tries to free all sort of mbcache in the lru list.

All user of mb_cache_shrink() are ext2/ext3 xattr.

Signed-off-by: Akinobu Mita <amgta@yacht.ocn.ne.jp>

--- 2.6-rc/fs/mbcache.c.orig	2005-07-14 20:40:34.000000000 +0900
+++ 2.6-rc/fs/mbcache.c	2005-07-14 20:43:42.000000000 +0900
@@ -329,7 +329,7 @@ mb_cache_shrink(struct mb_cache *cache, 
 	list_for_each_safe(l, ltmp, &mb_cache_lru_list) {
 		struct mb_cache_entry *ce =
 			list_entry(l, struct mb_cache_entry, e_lru_list);
-		if (ce->e_bdev == bdev) {
+		if (ce->e_cache == cache && ce->e_bdev == bdev) {
 			list_move_tail(&ce->e_lru_list, &free_list);
 			__mb_cache_entry_unhash(ce);
 		}