summaryrefslogtreecommitdiff
path: root/mm
diff options
context:
space:
mode:
authorAlexey Dobriyan <adobriyan@gmail.com>2018-04-05 16:21:31 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2018-04-05 21:36:24 -0700
commit7bbdb81ee3de73f2381ceec1bbee831f4c913b5c (patch)
tree6a48fc40f7f359fc2fb6d10776514ff05576bb07 /mm
parentbe4a7988b35db9e6f95dca818d5e94785840fb58 (diff)
slab: make usercopy region 32-bit
If kmem case sizes are 32-bit, then usecopy region should be too. Link: http://lkml.kernel.org/r/20180305200730.15812-21-adobriyan@gmail.com Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: David Miller <davem@davemloft.net> Cc: 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')
-rw-r--r--mm/slab.h4
-rw-r--r--mm/slab_common.c7
-rw-r--r--mm/slub.c2
3 files changed, 7 insertions, 6 deletions
diff --git a/mm/slab.h b/mm/slab.h
index 8f1072f49285..e8981e811c45 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -22,8 +22,8 @@ struct kmem_cache {
unsigned int size; /* The aligned/padded/added on size */
unsigned int align; /* Alignment as calculated */
slab_flags_t flags; /* Active flags on the slab */
- size_t useroffset; /* Usercopy region offset */
- size_t usersize; /* Usercopy region size */
+ unsigned int useroffset;/* Usercopy region offset */
+ unsigned int usersize; /* Usercopy region size */
const char *name; /* Slab name for sysfs */
int refcount; /* Use counter */
void (*ctor)(void *); /* Called on object slot creation */
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 3e07b1fb22bd..01224cb90080 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -380,8 +380,8 @@ struct kmem_cache *find_mergeable(unsigned int size, unsigned int align,
static struct kmem_cache *create_cache(const char *name,
unsigned int object_size, unsigned int size, unsigned int align,
- slab_flags_t flags, size_t useroffset,
- size_t usersize, void (*ctor)(void *),
+ slab_flags_t flags, unsigned int useroffset,
+ unsigned int usersize, void (*ctor)(void *),
struct mem_cgroup *memcg, struct kmem_cache *root_cache)
{
struct kmem_cache *s;
@@ -454,7 +454,8 @@ out_free_cache:
struct kmem_cache *
kmem_cache_create_usercopy(const char *name,
unsigned int size, unsigned int align,
- slab_flags_t flags, size_t useroffset, size_t usersize,
+ slab_flags_t flags,
+ unsigned int useroffset, unsigned int usersize,
void (*ctor)(void *))
{
struct kmem_cache *s = NULL;
diff --git a/mm/slub.c b/mm/slub.c
index dfead847961c..a10cf661cdae 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -5081,7 +5081,7 @@ SLAB_ATTR_RO(cache_dma);
static ssize_t usersize_show(struct kmem_cache *s, char *buf)
{
- return sprintf(buf, "%zu\n", s->usersize);
+ return sprintf(buf, "%u\n", s->usersize);
}
SLAB_ATTR_RO(usersize);