[PATCH 5.11 589/601] mm/sl?b.c: remove ctor argument from kmem_cache_flags

Greg Kroah-Hartman
2021-05-12T18:03:31Z

From: Nikolay Borisov <nborisov@suse.com>

[ Upstream commit 3754000872188e3e4713d9d847fe3c615a47c220 ]

This argument hasn't been used since e153362a50a3 ("slub: Remove objsize
check in kmem_cache_flags()") so simply remove it.

Link: https://lkml.kernel.org/r/20210126095733.974665-1-nborisov@suse.com
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Christoph Lameter <cl@linux.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
mm/slab.c | 3 +--
mm/slab.h | 6 ++----
mm/slab_common.c | 2 +-
mm/slub.c | 9 +++------
4 files changed, 7 insertions(+), 13 deletions(-)

diff --git a/mm/slab.c b/mm/slab.c
index d7c8da9319c7..e2d2044389ea 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1790,8 +1790,7 @@ static int __ref setup_cpu_cache(struct kmem_cache *cachep, gfp_t gfp)
}

slab_flags_t kmem_cache_flags(unsigned int object_size,
- slab_flags_t flags, const char *name,
- void (*ctor)(void *))
+ slab_flags_t flags, const char *name)
{
return flags;
}
diff --git a/mm/slab.h b/mm/slab.h
index 1a756a359fa8..9e83616bb5b4 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -110,8 +110,7 @@ __kmem_cache_alias(const char *name, unsigned int size, unsigned int align,
slab_flags_t flags, void (*ctor)(void *));

slab_flags_t kmem_cache_flags(unsigned int object_size,
- slab_flags_t flags, const char *name,
- void (*ctor)(void *));
+ slab_flags_t flags, const char *name);
#else
static inline struct kmem_cache *
__kmem_cache_alias(const char *name, unsigned int size, unsigned int align,
@@ -119,8 +118,7 @@ __kmem_cache_alias(const char *name, unsigned int size, unsigned int align,
{ return NULL; }

static inline slab_flags_t kmem_cache_flags(unsigned int object_size,
- slab_flags_t flags, const char *name,
- void (*ctor)(void *))
+ slab_flags_t flags, const char *name)
{
return flags;
}
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 0b775cb5c108..174d8652d9fe 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -197,7 +197,7 @@ struct kmem_cache *find_mergeable(unsigned int size, unsigned int align,
size = ALIGN(size, sizeof(void *));
align = calculate_alignment(flags, align, size);
size = ALIGN(size, align);
- flags = kmem_cache_flags(size, flags, name, NULL);
+ flags = kmem_cache_flags(size, flags, name);

if (flags & SLAB_NEVER_MERGE)
return NULL;
diff --git a/mm/slub.c b/mm/slub.c
index c86037b38253..d62db41710bf 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1400,7 +1400,6 @@ __setup("slub_debug", setup_slub_debug);
* @object_size: the size of an object without meta data
* @flags: flags to set
* @name: name of the cache
- * @ctor: constructor function
*
* Debug option(s) are applied to @flags. In addition to the debug
* option(s), if a slab name (or multiple) is specified i.e.
@@ -1408,8 +1407,7 @@ __setup("slub_debug", setup_slub_debug);
* then only the select slabs will receive the debug option(s).
*/
slab_flags_t kmem_cache_flags(unsigned int object_size,
- slab_flags_t flags, const char *name,
- void (*ctor)(void *))
+ slab_flags_t flags, const char *name)
{
char *iter;
size_t len;
@@ -1474,8 +1472,7 @@ static inline void add_full(struct kmem_cache *s, struct kmem_cache_node *n,
static inline void remove_full(struct kmem_cache *s, struct kmem_cache_node *n,
struct page *page) {}
slab_flags_t kmem_cache_flags(unsigned int object_size,
- slab_flags_t flags, const char *name,
- void (*ctor)(void *))
+ slab_flags_t flags, const char *name)
{
return flags;
}
@@ -3797,7 +3794,7 @@ static int calculate_sizes(struct kmem_cache *s, int forced_order)

static int kmem_cache_open(struct kmem_cache *s, slab_flags_t flags)
{
- s->flags = kmem_cache_flags(s->size, flags, s->name, s->ctor);
+ s->flags = kmem_cache_flags(s->size, flags, s->name);
#ifdef CONFIG_SLAB_FREELIST_HARDENED
s->random = get_random_long();
#endif
--
2.30.2