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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-05-17 18:24:04 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-05-17 18:24:04 +0200 |
| commit | ac1d426e825ab5778995f2f6f053ca2e6b45c622 (patch) | |
| tree | 75b91356ca39463e0112931aa6790802fb1e07a2 /mm/slab.c | |
| parent | Merge branch 'devel-pmu' into devel (diff) | |
| parent | Merge branch 'for-rmk/2635' of git://git.fluff.org/bjdooks/linux into devel-s... (diff) | |
| download | linux-ac1d426e825ab5778995f2f6f053ca2e6b45c622.tar.xz linux-ac1d426e825ab5778995f2f6f053ca2e6b45c622.zip | |
Merge branch 'devel-stable' into devel
Conflicts:
arch/arm/Kconfig
arch/arm/include/asm/system.h
arch/arm/mm/Kconfig
Diffstat (limited to 'mm/slab.c')
| -rw-r--r-- | mm/slab.c | 13 |
1 files changed, 1 insertions, 12 deletions
diff --git a/mm/slab.c b/mm/slab.c index a9f325b28bed..bac0f4fcc216 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -3602,21 +3602,10 @@ EXPORT_SYMBOL(kmem_cache_alloc_notrace); */ int kmem_ptr_validate(struct kmem_cache *cachep, const void *ptr) { - unsigned long addr = (unsigned long)ptr; - unsigned long min_addr = PAGE_OFFSET; - unsigned long align_mask = BYTES_PER_WORD - 1; unsigned long size = cachep->buffer_size; struct page *page; - if (unlikely(addr < min_addr)) - goto out; - if (unlikely(addr > (unsigned long)high_memory - size)) - goto out; - if (unlikely(addr & align_mask)) - goto out; - if (unlikely(!kern_addr_valid(addr))) - goto out; - if (unlikely(!kern_addr_valid(addr + size - 1))) + if (unlikely(!kern_ptr_validate(ptr, size))) goto out; page = virt_to_page(ptr); if (unlikely(!PageSlab(page))) |