Add taint flag outputting to slab debug paths.

Add taint flag outputting to slab debug paths.

[Dave Jones]

When we get corruption reports, it's useful to see if the kernel
was tainted, to rule out problems we can't do anything about.

Signed-off-by: Dave Jones <davej@redhat.com>

diff --git a/mm/slab.c b/mm/slab.c
index e74a16e..7bc287e 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1803,8 +1803,8 @@ static void check_poison_obj(struct kmem_cache *cachep, void *objp)
 			/* Print header */
 			if (lines == 0) {
 				printk(KERN_ERR
-					"Slab corruption: %s start=%p, len=%d\n",
-					cachep->name, realobj, size);
+					"Slab corruption (%s): %s start=%p, len=%d\n",
+					print_tainted(), cachep->name, realobj, size);
 				print_objinfo(cachep, objp, 0);
 			}
 			/* Hexdump the affected line */
@@ -2902,8 +2902,8 @@ static void check_slabp(struct kmem_cache *cachep, struct slab *slabp)
 	if (entries != cachep->num - slabp->inuse) {
 bad:
 		printk(KERN_ERR "slab: Internal list corruption detected in "
-				"cache '%s'(%d), slabp %p(%d). Hexdump:\n",
-			cachep->name, cachep->num, slabp, slabp->inuse);
+				"cache '%s'(%d), slabp %p(%d). Tainted(%s). Hexdump:\n",
+			cachep->name, cachep->num, slabp, slabp->inuse, print_tainted());
 		for (i = 0;
 		     i < sizeof(*slabp) + cachep->num * sizeof(kmem_bufctl_t);
 		     i++) {


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