slab allocators: Remove obsolete SLAB_MUST_HWCACHE_ALIGN
authorChristoph Lameter <clameter@sgi.com>
Sun, 6 May 2007 21:49:56 +0000 (14:49 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Mon, 7 May 2007 19:12:55 +0000 (12:12 -0700)
commit5af60839909b8e3b28ca7cd7912fa0b23475617f
tree774b068673ad7bb6fc67d29339c9a07bf12a7789
parent96018fdacbfcaf6a0694d066b525f67c24025688
slab allocators: Remove obsolete SLAB_MUST_HWCACHE_ALIGN

This patch was recently posted to lkml and acked by Pekka.

The flag SLAB_MUST_HWCACHE_ALIGN is

1. Never checked by SLAB at all.

2. A duplicate of SLAB_HWCACHE_ALIGN for SLUB

3. Fulfills the role of SLAB_HWCACHE_ALIGN for SLOB.

The only remaining use is in sparc64 and ppc64 and their use there
reflects some earlier role that the slab flag once may have had. If
its specified then SLAB_HWCACHE_ALIGN is also specified.

The flag is confusing, inconsistent and has no purpose.

Remove it.

Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/powerpc/mm/hugetlbpage.c
arch/powerpc/mm/init_64.c
arch/sparc64/mm/tsb.c
include/linux/slab.h
mm/slab.c
mm/slob.c
mm/slub.c