Add slab defrag support.

Signed-off-by: Christoph Lameter <[EMAIL PROTECTED]>

---
 fs/xfs/linux-2.6/kmem.h      |    5 +++--
 fs/xfs/linux-2.6/xfs_buf.c   |    2 +-
 fs/xfs/linux-2.6/xfs_super.c |   13 ++++++++++++-
 3 files changed, 16 insertions(+), 4 deletions(-)

Index: slub/fs/xfs/linux-2.6/kmem.h
===================================================================
--- slub.orig/fs/xfs/linux-2.6/kmem.h   2007-05-18 00:54:30.000000000 -0700
+++ slub/fs/xfs/linux-2.6/kmem.h        2007-05-18 00:58:38.000000000 -0700
@@ -79,9 +79,10 @@ kmem_zone_init(int size, char *zone_name
 
 static inline kmem_zone_t *
 kmem_zone_init_flags(int size, char *zone_name, unsigned long flags,
-                    void (*construct)(void *, kmem_zone_t *, unsigned long))
+                    void (*construct)(void *, kmem_zone_t *, unsigned long),
+                    const struct kmem_cache_ops *ops)
 {
-       return kmem_cache_create(zone_name, size, 0, flags, construct, NULL);
+       return kmem_cache_create(zone_name, size, 0, flags, construct, ops);
 }
 
 static inline void
Index: slub/fs/xfs/linux-2.6/xfs_buf.c
===================================================================
--- slub.orig/fs/xfs/linux-2.6/xfs_buf.c        2007-05-18 00:54:30.000000000 
-0700
+++ slub/fs/xfs/linux-2.6/xfs_buf.c     2007-05-18 00:58:38.000000000 -0700
@@ -1832,7 +1832,7 @@ xfs_buf_init(void)
 #endif
 
        xfs_buf_zone = kmem_zone_init_flags(sizeof(xfs_buf_t), "xfs_buf",
-                                               KM_ZONE_HWALIGN, NULL);
+                                               KM_ZONE_HWALIGN, NULL, NULL);
        if (!xfs_buf_zone)
                goto out_free_trace_buf;
 
Index: slub/fs/xfs/linux-2.6/xfs_super.c
===================================================================
--- slub.orig/fs/xfs/linux-2.6/xfs_super.c      2007-05-18 00:54:30.000000000 
-0700
+++ slub/fs/xfs/linux-2.6/xfs_super.c   2007-05-18 00:58:38.000000000 -0700
@@ -355,13 +355,24 @@ xfs_fs_inode_init_once(
        inode_init_once(vn_to_inode((bhv_vnode_t *)vnode));
 }
 
+static void *xfs_get_inodes(struct kmem_cache *s, int nr, void **v)
+{
+       return fs_get_inodes(s, nr, v, offsetof(bhv_vnode_t, v_inode));
+};
+
+static struct kmem_cache_ops xfs_kmem_cache_ops = {
+       .get = xfs_get_inodes,
+       .kick = kick_inodes
+};
+
 STATIC int
 xfs_init_zones(void)
 {
        xfs_vnode_zone = kmem_zone_init_flags(sizeof(bhv_vnode_t), "xfs_vnode",
                                        KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
                                        KM_ZONE_SPREAD,
-                                       xfs_fs_inode_init_once);
+                                       xfs_fs_inode_init_once,
+                                       &xfs_kmem_cache_ops);
        if (!xfs_vnode_zone)
                goto out;
 

-- 
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