[PATCH] patch-slab-split-03-tail

[Manfred Spraul]

This is a multi-part message in MIME format.
--------------010100020304010803080807
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

part 3:
[depends on -02-SMP]

If an object is freed from a slab, then move the slab to the tail of the 
partial list - this should increase the probability that the other 
objects from the same page are freed, too, and that a page can be 
returned to gfp later.

The cpu arrays are now always in front of the list, i.e. cache hit rates 
should not matter.

Please apply

--
	Manfred

--------------010100020304010803080807
Content-Type: text/plain;
 name="patch-slab-split-03-tail"
Content-Transfer-Encoding: 7bit
Content-Disposition: inline;
 filename="patch-slab-split-03-tail"

--- 2.5/mm/slab.c	Fri Oct  4 18:59:01 2002
+++ build-2.5/mm/slab.c	Fri Oct  4 18:59:11 2002
@@ -1478,7 +1478,7 @@
 		} else if (unlikely(inuse == cachep->num)) {
 			/* Was full. */
 			list_del(&slabp->list);
-			list_add(&slabp->list, &cachep->slabs_partial);
+			list_add_tail(&slabp->list, &cachep->slabs_partial);
 		}
 	}
 }

--------------010100020304010803080807--