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mm, sl[au]b: Taint kernel when we detect a corrupted slab 

It doesn't seem worth adding a new taint flag for this, so just re-use
the one from 'bad page'

Acked-by: Christoph Lameter <cl@linux.com> # SLUB
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Dave Jones 2012-09-18 15:54:12 -04:00 committed by Pekka Enberg
parent 947ca1856a
commit 645df230ca
2 changed files with 3 additions and 0 deletions
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1
mm/slab.c
View File

@ -811,6 +811,7 @@ static void __slab_error(const char *function, struct kmem_cache *cachep,
printk(KERN_ERR "slab error in %s(): cache `%s': %s\n", printk(KERN_ERR "slab error in %s(): cache `%s': %s\n",
function, cachep->name, msg); function, cachep->name, msg);
dump_stack(); dump_stack();
add_taint(TAINT_BAD_PAGE);
} }
/* /*

2
mm/slub.c
View File

@ -568,6 +568,8 @@ static void slab_bug(struct kmem_cache *s, char *fmt, ...)
printk(KERN_ERR "BUG %s (%s): %s\n", s->name, print_tainted(), buf); printk(KERN_ERR "BUG %s (%s): %s\n", s->name, print_tainted(), buf);
printk(KERN_ERR "----------------------------------------" printk(KERN_ERR "----------------------------------------"
"-------------------------------------\n\n"); "-------------------------------------\n\n");
add_taint(TAINT_BAD_PAGE);
} }
static void slab_fix(struct kmem_cache *s, char *fmt, ...) static void slab_fix(struct kmem_cache *s, char *fmt, ...)