Commit 84a01c2f authored Jul 15, 2007 by Paul Mundt Committed by Linus Torvalds Jul 16, 2007

slob: sparsemem support



Currently slob is disabled if we're using sparsemem, due to an earlier
patch from Goto-san.  Slob and static sparsemem work without any trouble as
it is, and the only hiccup is a missing slab_is_available() in the case of
sparsemem extreme.  With this, we're rid of the last set of restrictions
for slob usage.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Matt Mackall <mpm@selenic.com>
Cc: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 5dc4ac63

init/Kconfig

+1 −1

Original line number	Diff line number	Diff line
		@@ -576,7 +576,7 @@ config SLUB
		and has enhanced diagnostics.

		config SLOB
		depends on EMBEDDED && !SPARSEMEM
		depends on EMBEDDED
		bool "SLOB (Simple Allocator)"
		help
		SLOB replaces the SLAB allocator with a drastically simpler

mm/slob.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -634,6 +634,14 @@ int kmem_ptr_validate(struct kmem_cache a, const void b)
		return 0;
		}

		static unsigned int slob_ready __read_mostly;

		int slab_is_available(void)
		{
		return slob_ready;
		}

		void __init kmem_cache_init(void)
		{
		slob_ready = 1;
		}