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authorAlexey Dobriyan <adobriyan@gmail.com>2018-04-05 16:21:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-05 21:36:24 -0700
commit44065b2e2975ff5987164b98d29cc78e207f9a5a (patch)
treeb60f67312bfc31e4fc6af12a242705b16b81da6f /mm/slub.c
parent1b473f29d5dd766903ac2372ac04b07600f233d0 (diff)
slub: make ->size unsigned int
Linux doesn't support negative length objects (including meta data). Link: http://lkml.kernel.org/r/20180305200730.15812-18-adobriyan@gmail.com Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/slub.c')
-rw-r--r--mm/slub.c12
1 files changed, 6 insertions, 6 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 7431cd548776..ee11896c2a13 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -2399,7 +2399,7 @@ slab_out_of_memory(struct kmem_cache *s, gfp_t gfpflags, int nid)
pr_warn("SLUB: Unable to allocate memory on node %d, gfp=%#x(%pGg)\n",
nid, gfpflags, &gfpflags);
- pr_warn(" cache: %s, object size: %u, buffer size: %d, default order: %d, min order: %d\n",
+ pr_warn(" cache: %s, object size: %u, buffer size: %u, default order: %d, min order: %d\n",
s->name, s->object_size, s->size, oo_order(s->oo),
oo_order(s->min));
@@ -3633,8 +3633,8 @@ static int kmem_cache_open(struct kmem_cache *s, slab_flags_t flags)
free_kmem_cache_nodes(s);
error:
if (flags & SLAB_PANIC)
- panic("Cannot create slab %s size=%lu realsize=%u order=%u offset=%u flags=%lx\n",
- s->name, (unsigned long)s->size, s->size,
+ panic("Cannot create slab %s size=%u realsize=%u order=%u offset=%u flags=%lx\n",
+ s->name, s->size, s->size,
oo_order(s->oo), s->offset, (unsigned long)flags);
return -EINVAL;
}
@@ -3825,7 +3825,7 @@ void __check_heap_object(const void *ptr, unsigned long n, struct page *page,
bool to_user)
{
struct kmem_cache *s;
- unsigned long offset;
+ unsigned int offset;
size_t object_size;
/* Find object and usable object size. */
@@ -4889,7 +4889,7 @@ struct slab_attribute {
static ssize_t slab_size_show(struct kmem_cache *s, char *buf)
{
- return sprintf(buf, "%d\n", s->size);
+ return sprintf(buf, "%u\n", s->size);
}
SLAB_ATTR_RO(slab_size);
@@ -5664,7 +5664,7 @@ static char *create_unique_id(struct kmem_cache *s)
*p++ = 'A';
if (p != name + 1)
*p++ = '-';
- p += sprintf(p, "%07d", s->size);
+ p += sprintf(p, "%07u", s->size);
BUG_ON(p > name + ID_STR_LENGTH - 1);
return name;