tree c9f73c8b82cd0f6c534939b8b9f36e8615b0ab2d
parent ef2ad80c7d255ed0449eda947c2d700635b7e0f5
author Christoph Lameter <clameter@sgi.com> 1184670202 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> 1184692981 -0700

Slab allocators: consistent ZERO_SIZE_PTR support and NULL result semantics

Define ZERO_OR_NULL_PTR macro to be able to remove the checks from the
allocators.  Move ZERO_SIZE_PTR related stuff into slab.h.

Make ZERO_SIZE_PTR work for all slab allocators and get rid of the
WARN_ON_ONCE(size == 0) that is still remaining in SLAB.

Make slub return NULL like the other allocators if a too large memory segment
is requested via __kmalloc.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>