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Subject[PATCH 5.10 517/530] mm/sl?b.c: remove ctor argument from kmem_cache_flags
Date
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 b1113561b98b..b2cc2cf7d8a3 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1789,8 +1789,7 @@ 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 f9977d6613d6..e258ffcfb0ef 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 8d96679668b4..8f27ccf9f7f3 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -196,7 +196,7 @@ 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 fbc415c34009..05a501b67cd5 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1397,7 +1397,6 @@ __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.
@@ -1405,8 +1404,7 @@ __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;
@@ -1471,8 +1469,7 @@ 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;
}
@@ -3782,7 +3779,7 @@ 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


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