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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 10:10:44 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 10:10:44 -0700
commit4867faab1e3eb8cc3f74e390357615d9b8e8cda6 (patch)
tree7a6cb9175c483a0f7e3672185e7f9fb25f74caa3 /include/linux
parent6fad2b5b649fa1fa6ee7293222815f5b62499889 (diff)
parentbfb91fb650e988c3c347e50fc75fedb7d4f0c018 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/slab-2.6: slub: Deal with hyperthetical case of PAGE_SIZE > 2M slub: Remove node check in slab_free slub: avoid label inside conditional slub: Make CONFIG_DEBUG_PAGE_ALLOC work with new fastpath slub: Avoid warning for !CONFIG_SLUB_DEBUG slub: Remove CONFIG_CMPXCHG_LOCAL ifdeffery slub: Move debug handlign in __slab_free slub: Move node determination out of hotpath slub: Eliminate repeated use of c->page through a new page variable slub: get_map() function to establish map of free objects in a slab slub: Use NUMA_NO_NODE in get_partial slub: Fix a typo in config name
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/slub_def.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h
index 45ca123e8002..c8668d161dd8 100644
--- a/include/linux/slub_def.h
+++ b/include/linux/slub_def.h
@@ -37,9 +37,7 @@ enum stat_item {
struct kmem_cache_cpu {
void **freelist; /* Pointer to next available object */
-#ifdef CONFIG_CMPXCHG_LOCAL
unsigned long tid; /* Globally unique transaction id */
-#endif
struct page *page; /* The slab from which we are allocating */
int node; /* The node of the page (or -1 for debug) */
#ifdef CONFIG_SLUB_STATS
@@ -179,7 +177,8 @@ static __always_inline int kmalloc_index(size_t size)
if (size <= 4 * 1024) return 12;
/*
* The following is only needed to support architectures with a larger page
- * size than 4k.
+ * size than 4k. We need to support 2 * PAGE_SIZE here. So for a 64k page
+ * size we would have to go up to 128k.
*/
if (size <= 8 * 1024) return 13;
if (size <= 16 * 1024) return 14;
@@ -190,7 +189,8 @@ static __always_inline int kmalloc_index(size_t size)
if (size <= 512 * 1024) return 19;
if (size <= 1024 * 1024) return 20;
if (size <= 2 * 1024 * 1024) return 21;
- return -1;
+ BUG();
+ return -1; /* Will never be reached */
/*
* What we really wanted to do and cannot do because of compiler issues is: