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Subject[patch 10/12] Slab defragmentation: Support inode defragmentation for xfs
Add slab defrag support.

Signed-off-by: Christoph Lameter <clameter@sgi.com>

---
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 ++++++++++++-
fs/xfs/xfs_vfsops.c | 6 +++---
4 files changed, 19 insertions(+), 7 deletions(-)
Index: slub/fs/xfs/linux-2.6/kmem.h
===================================================================
--- slub.orig/fs/xfs/linux-2.6/kmem.h 2007-06-06 13:08:09.000000000 -0700
+++ slub/fs/xfs/linux-2.6/kmem.h 2007-06-06 13:32:58.000000000 -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 2007-06-06 13:08:09.000000000 -0700
+++ slub/fs/xfs/linux-2.6/xfs_buf.c 2007-06-06 13:32:58.000000000 -0700
@@ -1834,7 +1834,7 @@ 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 2007-06-06 13:08:09.000000000 -0700
+++ slub/fs/xfs/linux-2.6/xfs_super.c 2007-06-06 13:32:58.000000000 -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;

Index: slub/fs/xfs/xfs_vfsops.c
===================================================================
--- slub.orig/fs/xfs/xfs_vfsops.c 2007-06-06 15:19:52.000000000 -0700
+++ slub/fs/xfs/xfs_vfsops.c 2007-06-06 15:20:36.000000000 -0700
@@ -109,13 +109,13 @@ xfs_init(void)
xfs_inode_zone =
kmem_zone_init_flags(sizeof(xfs_inode_t), "xfs_inode",
KM_ZONE_HWALIGN | KM_ZONE_RECLAIM |
- KM_ZONE_SPREAD, NULL);
+ KM_ZONE_SPREAD, NULL, NULL);
xfs_ili_zone =
kmem_zone_init_flags(sizeof(xfs_inode_log_item_t), "xfs_ili",
- KM_ZONE_SPREAD, NULL);
+ KM_ZONE_SPREAD, NULL, NULL);
xfs_chashlist_zone =
kmem_zone_init_flags(sizeof(xfs_chashlist_t), "xfs_chashlist",
- KM_ZONE_SPREAD, NULL);
+ KM_ZONE_SPREAD, NULL, NULL);

/*
* Allocate global trace buffers.
--
-
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