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

[Ravikiran G Thirumalai <kiran@scalex86.org>]

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>

Index: linux-2.6.16mm2/mm/slab.c
===================================================================
--- linux-2.6.16mm2.orig/mm/slab.c	2006-03-30 15:47:55.000000000 -0800
+++ linux-2.6.16mm2/mm/slab.c	2006-03-30 17:11:07.000000000 -0800
@@ -2330,13 +2330,15 @@ 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 {
@@ -2346,6 +2348,7 @@ static struct slab *alloc_slabmgmt(struc
 	slabp->inuse = 0;
 	slabp->colouroff = colour_off;
 	slabp->s_mem = objp + colour_off;
+	slabp->nodeid = nodeid;
 	return slabp;
 }
 
@@ -2532,7 +2535,7 @@ static int cache_grow(struct kmem_cache 
 		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;