slab, slub, slob: add slab_flags_t
Add sparse-checked slab_flags_t for struct kmem_cache::flags (SLAB_POISON,
etc).
SLAB is bloated temporarily by switching to "unsigned long", but only
temporarily.
Link: http://lkml.kernel.org/r/20171021100225.GA22428@avx2
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: Christoph Lameter <cl@linux.com>
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>
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 8f7f9f7..175e866 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -291,7 +291,7 @@
}
struct kmem_cache *find_mergeable(size_t size, size_t align,
- unsigned long flags, const char *name, void (*ctor)(void *))
+ slab_flags_t flags, const char *name, void (*ctor)(void *))
{
struct kmem_cache *s;
@@ -341,7 +341,7 @@
* Figure out what the alignment of the objects will be given a set of
* flags, a user specified alignment and the size of the objects.
*/
-unsigned long calculate_alignment(unsigned long flags,
+unsigned long calculate_alignment(slab_flags_t flags,
unsigned long align, unsigned long size)
{
/*
@@ -366,7 +366,7 @@
static struct kmem_cache *create_cache(const char *name,
size_t object_size, size_t size, size_t align,
- unsigned long flags, void (*ctor)(void *),
+ slab_flags_t flags, void (*ctor)(void *),
struct mem_cgroup *memcg, struct kmem_cache *root_cache)
{
struct kmem_cache *s;
@@ -431,7 +431,7 @@
*/
struct kmem_cache *
kmem_cache_create(const char *name, size_t size, size_t align,
- unsigned long flags, void (*ctor)(void *))
+ slab_flags_t flags, void (*ctor)(void *))
{
struct kmem_cache *s = NULL;
const char *cache_name;
@@ -879,7 +879,7 @@
#ifndef CONFIG_SLOB
/* Create a cache during boot when no slab services are available yet */
void __init create_boot_cache(struct kmem_cache *s, const char *name, size_t size,
- unsigned long flags)
+ slab_flags_t flags)
{
int err;
@@ -899,7 +899,7 @@
}
struct kmem_cache *__init create_kmalloc_cache(const char *name, size_t size,
- unsigned long flags)
+ slab_flags_t flags)
{
struct kmem_cache *s = kmem_cache_zalloc(kmem_cache, GFP_NOWAIT);
@@ -1057,7 +1057,7 @@
}
}
-static void __init new_kmalloc_cache(int idx, unsigned long flags)
+static void __init new_kmalloc_cache(int idx, slab_flags_t flags)
{
kmalloc_caches[idx] = create_kmalloc_cache(kmalloc_info[idx].name,
kmalloc_info[idx].size, flags);
@@ -1068,7 +1068,7 @@
* may already have been created because they were needed to
* enable allocations for slab creation.
*/
-void __init create_kmalloc_caches(unsigned long flags)
+void __init create_kmalloc_caches(slab_flags_t flags)
{
int i;