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authorChristoph Lameter <cl@linux.com>2012-11-28 16:23:16 +0000
committerPekka Enberg <penberg@kernel.org>2012-12-11 12:14:28 +0200
commit4590685546a374fb0f60682ce0e3a6fd48911d46 (patch)
tree1287ce1e1633067f8bf2cf9f93f1d6fe8a1f8908 /mm/slob.c
parent2f9baa9fcf8d0a204ca129a671d6086cc100faab (diff)
downloadlwn-4590685546a374fb0f60682ce0e3a6fd48911d46.tar.gz
lwn-4590685546a374fb0f60682ce0e3a6fd48911d46.zip
mm/sl[aou]b: Common alignment code
Extract the code to do object alignment from the allocators. Do the alignment calculations in slab_common so that the __kmem_cache_create functions of the allocators do not have to deal with alignment. Signed-off-by: Christoph Lameter <cl@linux.com> Signed-off-by: Pekka Enberg <penberg@kernel.org>
Diffstat (limited to 'mm/slob.c')
-rw-r--r--mm/slob.c10
1 files changed, 0 insertions, 10 deletions
diff --git a/mm/slob.c b/mm/slob.c
index 87e16c4d9143..795bab7d391d 100644
--- a/mm/slob.c
+++ b/mm/slob.c
@@ -123,7 +123,6 @@ static inline void clear_slob_page_free(struct page *sp)
#define SLOB_UNIT sizeof(slob_t)
#define SLOB_UNITS(size) (((size) + SLOB_UNIT - 1)/SLOB_UNIT)
-#define SLOB_ALIGN L1_CACHE_BYTES
/*
* struct slob_rcu is inserted at the tail of allocated slob blocks, which
@@ -527,20 +526,11 @@ EXPORT_SYMBOL(ksize);
int __kmem_cache_create(struct kmem_cache *c, unsigned long flags)
{
- size_t align = c->size;
-
if (flags & SLAB_DESTROY_BY_RCU) {
/* leave room for rcu footer at the end of object */
c->size += sizeof(struct slob_rcu);
}
c->flags = flags;
- /* ignore alignment unless it's forced */
- c->align = (flags & SLAB_HWCACHE_ALIGN) ? SLOB_ALIGN : 0;
- if (c->align < ARCH_SLAB_MINALIGN)
- c->align = ARCH_SLAB_MINALIGN;
- if (c->align < align)
- c->align = align;
-
return 0;
}