SLUB: i386 support

SLUB cannot run on i386 at this point because i386 uses the page->private and
page->index field of slab pages for the pgd cache.

Make SLUB run on i386 by replacing the pgd slab cache with a quicklist.
Limit the changes as much as possible. Leave the improvised linked list in place
etc etc. This has been working here for a couple of weeks now.

Acked-by: William Lee Irwin III <wli@holomorphy.com>
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>

1 files changed, 4 insertions, 4 deletions

diff --git a/arch/i386/Kconfig b/arch/i386/Kconfig
index 30944ee2e61a..c2d54b802232 100644
--- a/arch/i386/Kconfig
+++ b/arch/i386/Kconfig
@@ -55,6 +55,10 @@ config ZONE_DMA
         bool
         default y
 
+config QUICKLIST
+        bool
+        default y
+
 config SBUS
         bool
 
@@ -79,10 +83,6 @@ config ARCH_MAY_HAVE_PC_FDC
         bool
         default y
 
-config ARCH_USES_SLAB_PAGE_STRUCT
-        bool
-        default y
-
 config DMI
         bool
         default y