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Subject[patch 16/26] Slab defragmentation: Support defragmentation for extX filesystem inodes
Signed-off-by: Christoph Lameter <clameter@sgi.com>

---
fs/ext2/super.c | 16 ++++++++++++++--
fs/ext3/super.c | 14 +++++++++++++-
fs/ext4/super.c | 14 +++++++++++++-
3 files changed, 40 insertions(+), 4 deletions(-)

Index: slub/fs/ext2/super.c
===================================================================
--- slub.orig/fs/ext2/super.c 2007-06-07 14:09:36.000000000 -0700
+++ slub/fs/ext2/super.c 2007-06-07 14:28:47.000000000 -0700
@@ -168,14 +168,26 @@ static void init_once(void * foo, struct
mutex_init(&ei->truncate_mutex);
inode_init_once(&ei->vfs_inode);
}
-
+
+static void *ext2_get_inodes(struct kmem_cache *s, int nr, void **v)
+{
+ return fs_get_inodes(s, nr, v,
+ offsetof(struct ext2_inode_info, vfs_inode));
+}
+
+static struct kmem_cache_ops ext2_kmem_cache_ops = {
+ .get = ext2_get_inodes,
+ .kick = kick_inodes
+};
+
static int init_inodecache(void)
{
ext2_inode_cachep = kmem_cache_create("ext2_inode_cache",
sizeof(struct ext2_inode_info),
0, (SLAB_RECLAIM_ACCOUNT|
SLAB_MEM_SPREAD),
- init_once, NULL);
+ init_once,
+ &ext2_kmem_cache_ops);
if (ext2_inode_cachep == NULL)
return -ENOMEM;
return 0;
Index: slub/fs/ext3/super.c
===================================================================
--- slub.orig/fs/ext3/super.c 2007-06-07 14:09:36.000000000 -0700
+++ slub/fs/ext3/super.c 2007-06-07 14:28:47.000000000 -0700
@@ -483,13 +483,25 @@ static void init_once(void * foo, struct
inode_init_once(&ei->vfs_inode);
}

+static void *ext3_get_inodes(struct kmem_cache *s, int nr, void **v)
+{
+ return fs_get_inodes(s, nr, v,
+ offsetof(struct ext3_inode_info, vfs_inode));
+}
+
+static struct kmem_cache_ops ext3_kmem_cache_ops = {
+ .get = ext3_get_inodes,
+ .kick = kick_inodes
+};
+
static int init_inodecache(void)
{
ext3_inode_cachep = kmem_cache_create("ext3_inode_cache",
sizeof(struct ext3_inode_info),
0, (SLAB_RECLAIM_ACCOUNT|
SLAB_MEM_SPREAD),
- init_once, NULL);
+ init_once,
+ &ext3_kmem_cache_ops);
if (ext3_inode_cachep == NULL)
return -ENOMEM;
return 0;
Index: slub/fs/ext4/super.c
===================================================================
--- slub.orig/fs/ext4/super.c 2007-06-07 14:09:36.000000000 -0700
+++ slub/fs/ext4/super.c 2007-06-07 14:29:49.000000000 -0700
@@ -543,13 +543,25 @@ static void init_once(void * foo, struct
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 struct kmem_cache_ops ext4_kmem_cache_ops = {
+ .get = ext4_get_inodes,
+ .kick = kick_inodes
+};
+
static int init_inodecache(void)
{
ext4_inode_cachep = kmem_cache_create("ext4_inode_cache",
sizeof(struct ext4_inode_info),
0, (SLAB_RECLAIM_ACCOUNT|
SLAB_MEM_SPREAD),
- init_once, NULL);
+ init_once,
+ &ext4_kmem_cache_ops);
if (ext4_inode_cachep == NULL)
return -ENOMEM;
return 0;
--
-
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