[PATCH] handle SLOB with sparsemen

This is to disallow to make SLOB with SMP or SPARSEMEM.  This avoids latent
troubles of SLOB with SLAB_DESTROY_BY_RCU.  And fix compile error.

Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/init/Kconfig b/init/Kconfig
index 9b1adb1..a3f83e2 100644 (file)
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -450,7 +450,7 @@ config SHMEM
 
 config SLAB
        default y
-       bool "Use full SLAB allocator" if EMBEDDED
+       bool "Use full SLAB allocator" if (EMBEDDED && !SMP && !SPARSEMEM)
        help
          Disabling this replaces the advanced SLAB allocator and
          kmalloc support with the drastically simpler SLOB allocator.