Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-10 06:01:57 +00:00
Code Issues Packages Projects Releases Wiki Activity

slab: remove kmem_cache_create_rcu()

Browse Source 
Now that we have ported all users of kmem_cache_create_rcu() to struct
kmem_cache_args the function is unused and can be removed.

Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
This commit is contained in:
Christian Brauner 2024-09-05 09:56:57 +02:00 committed by Vlastimil Babka
parent 5f7d256682
commit 3d453e60f1
2 changed files with 0 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/linux/slab.h
View File

@ -271,9 +271,6 @@ struct kmem_cache *kmem_cache_create_usercopy(const char *name,
slab_flags_t flags,
unsigned int useroffset, unsigned int usersize,
void (*ctor)(void *));
struct kmem_cache *kmem_cache_create_rcu(const char *name, unsigned int size,
unsigned int freeptr_offset,
slab_flags_t flags);
/* If NULL is passed for @args, use this variant with default arguments. */
static inline struct kmem_cache *

43
mm/slab_common.c
View File

@ -420,49 +420,6 @@ struct kmem_cache *__kmem_cache_create(const char *name, unsigned int size,
}
EXPORT_SYMBOL(__kmem_cache_create);
/**
* kmem_cache_create_rcu - Create a SLAB_TYPESAFE_BY_RCU cache.
* @name: A string which is used in /proc/slabinfo to identify this cache.
* @size: The size of objects to be created in this cache.
* @freeptr_offset: The offset into the memory to the free pointer
* @flags: SLAB flags
*
* Cannot be called within an interrupt, but can be interrupted.
*
* See kmem_cache_create() for an explanation of possible @flags.
*
* By default SLAB_TYPESAFE_BY_RCU caches place the free pointer outside
* of the object. This might cause the object to grow in size. Callers
* that have a reason to avoid this can specify a custom free pointer
* offset in their struct where the free pointer will be placed.
*
* Note that placing the free pointer inside the object requires the
* caller to ensure that no fields are invalidated that are required to
* guard against object recycling (See SLAB_TYPESAFE_BY_RCU for
* details.).
*
* Using zero as a value for @freeptr_offset is valid. To request no
* offset UINT_MAX must be specified.
*
* Note that @ctor isn't supported with custom free pointers as a @ctor
* requires an external free pointer.
*
* Return: a pointer to the cache on success, NULL on failure.
*/
struct kmem_cache *kmem_cache_create_rcu(const char *name, unsigned int size,
unsigned int freeptr_offset,
slab_flags_t flags)
{
struct kmem_cache_args kmem_args = {
.freeptr_offset = freeptr_offset,
.use_freeptr_offset = true,
};
return __kmem_cache_create_args(name, size, &kmem_args,
flags | SLAB_TYPESAFE_BY_RCU);
}
EXPORT_SYMBOL(kmem_cache_create_rcu);
static struct kmem_cache *kmem_buckets_cache __ro_after_init;
/**