slab: fix cache_cache bootstrap in kmem_cache_init()
Daniel Yeisley [Tue, 25 Mar 2008 21:59:08 +0000 (23:59 +0200)]
Commit 556a169dab38b5100df6f4a45b655dddd3db94c1 ("slab: fix bootstrap on
memoryless node") introduced bootstrap-time cache_cache list3s for all nodes
but forgot that initkmem_list3 needs to be accessed by [somevalue + node]. This
patch fixes list_add() corruption in mm/slab.c seen on the ES7000.

Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Olaf Hering <olaf@aepfle.de>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Dan Yeisley <dan.yeisley@unisys.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Christoph Lameter <clameter@sgi.com>

mm/slab.c

index bb4070e..04b308c 100644 (file)
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1481,7 +1481,7 @@ void __init kmem_cache_init(void)
        list_add(&cache_cache.next, &cache_chain);
        cache_cache.colour_off = cache_line_size();
        cache_cache.array[smp_processor_id()] = &initarray_cache.cache;
-       cache_cache.nodelists[node] = &initkmem_list3[CACHE_CACHE];
+       cache_cache.nodelists[node] = &initkmem_list3[CACHE_CACHE + node];
 
        /*
         * struct kmem_cache size depends on nr_node_ids, which
@@ -1602,7 +1602,7 @@ void __init kmem_cache_init(void)
                int nid;
 
                for_each_online_node(nid) {
-                       init_list(&cache_cache, &initkmem_list3[CACHE_CACHE], nid);
+                       init_list(&cache_cache, &initkmem_list3[CACHE_CACHE + nid], nid);
 
                        init_list(malloc_sizes[INDEX_AC].cs_cachep,
                                  &initkmem_list3[SIZE_AC + nid], nid);