diff options
| author | Christian Brauner <brauner@kernel.org> | 2024-09-05 09:56:51 +0200 |
|---|---|---|
| committer | Vlastimil Babka <vbabka@suse.cz> | 2024-09-10 11:42:58 +0200 |
| commit | 3dbe2bad5785e4a9f62d99186e7d31410a8f1e2d (patch) | |
| tree | 76335c5ea14950b8a792f91f634be8738d2f1912 /mm/slub.c | |
| parent | slab: pull kmem_cache_open() into do_kmem_cache_create() (diff) | |
| download | linux-3dbe2bad5785e4a9f62d99186e7d31410a8f1e2d.tar.xz linux-3dbe2bad5785e4a9f62d99186e7d31410a8f1e2d.zip | |
slab: pass struct kmem_cache_args to do_kmem_cache_create()
and initialize most things in do_kmem_cache_create(). In a follow-up
patch we'll remove rcu_freeptr_offset from struct kmem_cache.
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>
Diffstat (limited to 'mm/slub.c')
| -rw-r--r-- | mm/slub.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/mm/slub.c b/mm/slub.c index 30f4ca6335c7..4719b60215b8 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -5843,14 +5843,29 @@ __kmem_cache_alias(const char *name, unsigned int size, unsigned int align, return s; } -int do_kmem_cache_create(struct kmem_cache *s, slab_flags_t flags) +int do_kmem_cache_create(struct kmem_cache *s, const char *name, + unsigned int size, struct kmem_cache_args *args, + slab_flags_t flags) { int err = -EINVAL; + s->name = name; + s->size = s->object_size = size; + s->flags = kmem_cache_flags(flags, s->name); #ifdef CONFIG_SLAB_FREELIST_HARDENED s->random = get_random_long(); #endif + if (args->use_freeptr_offset) + s->rcu_freeptr_offset = args->freeptr_offset; + else + s->rcu_freeptr_offset = UINT_MAX; + s->align = args->align; + s->ctor = args->ctor; +#ifdef CONFIG_HARDENED_USERCOPY + s->useroffset = args->useroffset; + s->usersize = args->usersize; +#endif if (!calculate_sizes(s)) goto out; |