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    Subject[slubllv3 13/21] slub: Pass kmem_cache struct to lock and freeze slab
    We need more information about the slab for the cmpxchg implementation.

    Signed-off-by: Christoph Lameter <cl@linux.com>

    ---
    mm/slub.c | 11 ++++++-----
    1 file changed, 6 insertions(+), 5 deletions(-)

    Index: linux-2.6/mm/slub.c
    ===================================================================
    --- linux-2.6.orig/mm/slub.c 2011-04-15 14:29:01.000000000 -0500
    +++ linux-2.6/mm/slub.c 2011-04-15 14:29:35.000000000 -0500
    @@ -1424,8 +1424,8 @@ static inline void remove_partial(struct
    *
    * Must hold list_lock.
    */
    -static inline int lock_and_freeze_slab(struct kmem_cache_node *n,
    - struct page *page)
    +static inline int lock_and_freeze_slab(struct kmem_cache *s,
    + struct kmem_cache_node *n, struct page *page)
    {
    if (slab_trylock(page)) {
    remove_partial(n, page);
    @@ -1437,7 +1437,8 @@ static inline int lock_and_freeze_slab(s
    /*
    * Try to allocate a partial slab from a specific node.
    */
    -static struct page *get_partial_node(struct kmem_cache_node *n)
    +static struct page *get_partial_node(struct kmem_cache *s,
    + struct kmem_cache_node *n)
    {
    struct page *page;

    @@ -1452,7 +1453,7 @@ static struct page *get_partial_node(str

    spin_lock(&n->list_lock);
    list_for_each_entry(page, &n->partial, lru)
    - if (lock_and_freeze_slab(n, page))
    + if (lock_and_freeze_slab(s, n, page))
    goto out;
    page = NULL;
    out:
    @@ -1503,7 +1504,7 @@ static struct page *get_any_partial(stru

    if (n && cpuset_zone_allowed_hardwall(zone, flags) &&
    n->nr_partial > s->min_partial) {
    - page = get_partial_node(n);
    + page = get_partial_node(s, n);
    if (page) {
    put_mems_allowed();
    return page;


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