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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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