[PATCH] slab: allocate node local memory for off-slab slabmanagement

Allocate off-slab slab descriptors from node local memory.

Signed-off-by: Alok N Kataria <alokk@calsoftinc.com>
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 6 insertions, 3 deletions

diff --git a/mm/slab.c b/mm/slab.c
index f055c1420216..afabad54c4c6 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -2318,13 +2318,15 @@ EXPORT_SYMBOL(kmem_cache_destroy);
 
 /* Get the memory for a slab management obj. */
 static struct slab *alloc_slabmgmt(struct kmem_cache *cachep, void *objp,
-                                   int colour_off, gfp_t local_flags)
+                                   int colour_off, gfp_t local_flags,
+                                   int nodeid)
 {
         struct slab *slabp;
 
         if (OFF_SLAB(cachep)) {
                 /* Slab management obj is off-slab. */
-                slabp = kmem_cache_alloc(cachep->slabp_cache, local_flags);
+                slabp = kmem_cache_alloc_node(cachep->slabp_cache,
+                                              local_flags, nodeid);
                 if (!slabp)
                         return NULL;
         } else {
@@ -2334,6 +2336,7 @@ static struct slab *alloc_slabmgmt(struct kmem_cache *cachep, void *objp,
         slabp->inuse = 0;
         slabp->colouroff = colour_off;
         slabp->s_mem = objp + colour_off;
+        slabp->nodeid = nodeid;
         return slabp;
 }
 
@@ -2519,7 +2522,7 @@ static int cache_grow(struct kmem_cache *cachep, gfp_t flags, int nodeid)
                 goto failed;
 
         /* Get slab management. */
-        slabp = alloc_slabmgmt(cachep, objp, offset, local_flags);
+        slabp = alloc_slabmgmt(cachep, objp, offset, local_flags, nodeid);
         if (!slabp)
                 goto opps1;