aboutsummaryrefslogtreecommitdiffstats
path: root/include
diff options
context:
space:
mode:
authorPekka Enberg <penberg@cs.helsinki.fi>2010-04-07 19:23:40 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2010-04-09 10:09:50 -0700
commitfc1c183353a113c71675fecd0485e5aa0fe68d72 (patch)
tree25fc50112c80402ab43bd86a3d6b6a99a0c3c128 /include
parent4dc86ae1f925b2121d4e75058675895f83e54c71 (diff)
downloadmrst-s0i3-test-fc1c183353a113c71675fecd0485e5aa0fe68d72.tar.gz
mrst-s0i3-test-fc1c183353a113c71675fecd0485e5aa0fe68d72.tar.xz
mrst-s0i3-test-fc1c183353a113c71675fecd0485e5aa0fe68d72.zip
slab: Generify kernel pointer validation
As suggested by Linus, introduce a kern_ptr_validate() helper that does some sanity checks to make sure a pointer is a valid kernel pointer. This is a preparational step for fixing SLUB kmem_ptr_validate(). Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Christoph Lameter <cl@linux-foundation.org> Cc: David Rientjes <rientjes@google.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Matt Mackall <mpm@selenic.com> Cc: Nick Piggin <npiggin@suse.de> Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/slab.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 488446289ca..49d1247cd6d 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -106,6 +106,7 @@ int kmem_cache_shrink(struct kmem_cache *);
void kmem_cache_free(struct kmem_cache *, void *);
unsigned int kmem_cache_size(struct kmem_cache *);
const char *kmem_cache_name(struct kmem_cache *);
+int kern_ptr_validate(const void *ptr, unsigned long size);
int kmem_ptr_validate(struct kmem_cache *cachep, const void *ptr);
/*