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authorLinus Torvalds <torvalds@linux-foundation.org>2014-02-02 11:30:08 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-02-02 11:30:08 -0800
commit7b383bef25e493cc4f047e44ebd6c3ccfd6d1cc5 (patch)
tree4a8379bb6d5929cf72c916da8e5bc7532aa43841 /include/linux/slab.h
parent87af5e5c22568201dfbda5cac9c76e96982adc9c (diff)
parentcb8ee1a3d429f8898972c869dd4792afb04e961a (diff)
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Merge branch 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux
Pull SLAB changes from Pekka Enberg: "Random bug fixes that have accumulated in my inbox over the past few months" * 'slab/next' of git://git.kernel.org/pub/scm/linux/kernel/git/penberg/linux: mm: Fix warning on make htmldocs caused by slab.c mm: slub: work around unneeded lockdep warning mm: sl[uo]b: fix misleading comments slub: Fix possible format string bug. slub: use lockdep_assert_held slub: Fix calculation of cpu slabs slab.h: remove duplicate kmalloc declaration and fix kernel-doc warnings
Diffstat (limited to 'include/linux/slab.h')
-rw-r--r--include/linux/slab.h8
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h
index a060142aa5f5..9260abdd67df 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -205,8 +205,8 @@ struct kmem_cache {
#ifdef CONFIG_SLUB
/*
- * SLUB allocates up to order 2 pages directly and otherwise
- * passes the request to the page allocator.
+ * SLUB directly allocates requests fitting in to an order-1 page
+ * (PAGE_SIZE*2). Larger requests are passed to the page allocator.
*/
#define KMALLOC_SHIFT_HIGH (PAGE_SHIFT + 1)
#define KMALLOC_SHIFT_MAX (MAX_ORDER + PAGE_SHIFT)
@@ -217,12 +217,12 @@ struct kmem_cache {
#ifdef CONFIG_SLOB
/*
- * SLOB passes all page size and larger requests to the page allocator.
+ * SLOB passes all requests larger than one page to the page allocator.
* No kmalloc array is necessary since objects of different sizes can
* be allocated from the same page.
*/
-#define KMALLOC_SHIFT_MAX 30
#define KMALLOC_SHIFT_HIGH PAGE_SHIFT
+#define KMALLOC_SHIFT_MAX 30
#ifndef KMALLOC_SHIFT_LOW
#define KMALLOC_SHIFT_LOW 3
#endif