Re: [PATCH] slub - Use local_t protection
From: Christoph Lameter
Date: Tue Sep 04 2007 - 16:45:44 EST
On Tue, 4 Sep 2007, Mathieu Desnoyers wrote:
> @@ -1566,12 +1565,13 @@ redo:
> object[c->offset]) != object))
> goto redo;
>
> - put_cpu();
> + local_exit(flags);
> if (unlikely((gfpflags & __GFP_ZERO)))
> memset(object, 0, c->objsize);
>
> return object;
> slow:
> + local_exit(flags);
Here we can be rescheduled to another processors.
> return __slab_alloc(s, gfpflags, node, addr, c)
c may point to the wrong processor.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/