From e0f06641031cd2e6c84c00146f95341d0826651c Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Sun, 6 May 2007 14:50:19 -0700 Subject: [PATCH] [PATCH] slob: fix page order calculation on not 4KB page SLOB doesn't calculate correct page order when page size is not 4KB. This patch fixes it with using get_order() instead of find_order() which is SLOB version of get_order(). Signed-off-by: Akinobu Mita Acked-by: Matt Mackall Signed-off-by: Andrew Morton Signed-off-by: Chris Wright --- mm/slob.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/mm/slob.c b/mm/slob.c index 5adc29cb58dd..c683d356a30e 100644 --- a/mm/slob.c +++ b/mm/slob.c @@ -150,15 +150,6 @@ static void slob_free(void *block, int size) spin_unlock_irqrestore(&slob_lock, flags); } -static int FASTCALL(find_order(int size)); -static int fastcall find_order(int size) -{ - int order = 0; - for ( ; size > 4096 ; size >>=1) - order++; - return order; -} - void *__kmalloc(size_t size, gfp_t gfp) { slob_t *m; @@ -174,7 +165,7 @@ void *__kmalloc(size_t size, gfp_t gfp) if (!bb) return 0; - bb->order = find_order(size); + bb->order = get_order(size); bb->pages = (void *)__get_free_pages(gfp, bb->order); if (bb->pages) { @@ -284,7 +275,7 @@ void *kmem_cache_alloc(struct kmem_cache *c, gfp_t flags) if (c->size < PAGE_SIZE) b = slob_alloc(c->size, flags, c->align); else - b = (void *)__get_free_pages(flags, find_order(c->size)); + b = (void *)__get_free_pages(flags, get_order(c->size)); if (c->ctor) c->ctor(b, c, SLAB_CTOR_CONSTRUCTOR); @@ -311,7 +302,7 @@ void kmem_cache_free(struct kmem_cache *c, void *b) if (c->size < PAGE_SIZE) slob_free(b, c->size); else - free_pages((unsigned long)b, find_order(c->size)); + free_pages((unsigned long)b, get_order(c->size)); } EXPORT_SYMBOL(kmem_cache_free); -- 2.39.2