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Support defragmentation for extX filesystem inodes
Reviewed-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
fs/ext4/super.c | 8 ++++++++
1 file changed, 8 insertions(+)
Index: linux-2.6/fs/ext4/super.c
===================================================================
--- linux-2.6.orig/fs/ext4/super.c 2008-05-07 21:23:41.961409593 -0700
+++ linux-2.6/fs/ext4/super.c 2008-05-07 21:27:18.215159859 -0700
@@ -599,6 +599,12 @@ static void init_once(struct kmem_cache
inode_init_once(&ei->vfs_inode);
}
+static void *ext4_get_inodes(struct kmem_cache *s, int nr, void **v)
+{
+ return fs_get_inodes(s, nr, v,
+ offsetof(struct ext4_inode_info, vfs_inode));
+}
+
static int init_inodecache(void)
{
ext4_inode_cachep = kmem_cache_create("ext4_inode_cache",
@@ -608,6 +614,8 @@ static int init_inodecache(void)
init_once);
if (ext4_inode_cachep == NULL)
return -ENOMEM;
+ kmem_cache_setup_defrag(ext4_inode_cachep,
+ ext4_get_inodes, kick_inodes);
return 0;
}
--
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