From: Dan Magenheimer on
[PATCH V2 6/7] Cleancache (was Transcendent Memory): ext4 hook

Filesystems must explicitly enable cleancache. For ext4,
all other cleancache hooks are in the VFS layer.

Signed-off-by: Dan Magenheimer <dan.magenheimer(a)oracle.com>
Acked-by: Andreas Dilger <adilger(a)sun.com>

Diffstat:
super.c | 2 ++
1 file changed, 2 insertions(+)

--- linux-2.6.34/fs/ext4/super.c 2010-05-16 15:17:36.000000000 -0600
+++ linux-2.6.34-cleancache/fs/ext4/super.c 2010-05-24 12:14:44.000000000 -0600
@@ -39,6 +39,7 @@
#include <linux/ctype.h>
#include <linux/log2.h>
#include <linux/crc16.h>
+#include <linux/cleancache.h>
#include <asm/uaccess.h>

#include "ext4.h"
@@ -1784,6 +1785,7 @@ static int ext4_setup_super(struct super
EXT4_INODES_PER_GROUP(sb),
sbi->s_mount_opt);

+ sb->cleancache_poolid = cleancache_init_fs(PAGE_SIZE);
return res;
}

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