SLUB: slabinfo fallback from /sys/kernel/slab to /sys/slab

I keep running upstream and mm kernels and the location of the slab directory
is different since upstream still uses /sys/slab. This patch makes slabinfo
check /sys/slab if /sys/kernel/slab is not there. Makes slabinfo for for any kernel.

Signed-off-by: Christoph Lameter <clameter@sgi.com>

---
 Documentation/vm/slabinfo.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6.24-rc6-mm1/Documentation/vm/slabinfo.c
===================================================================
--- linux-2.6.24-rc6-mm1.orig/Documentation/vm/slabinfo.c	2008-01-09 22:50:05.154296789 -0800
+++ linux-2.6.24-rc6-mm1/Documentation/vm/slabinfo.c	2008-01-09 22:51:13.455644570 -0800
@@ -1040,7 +1040,7 @@ void read_slab_dir(void)
 	char *t;
 	int count;
 
-	if (chdir("/sys/kernel/slab"))
+	if (chdir("/sys/kernel/slab") && chdir("/sys/slab"))
 		fatal("SYSFS support for SLUB not active\n");
 
 	dir = opendir(".");