Re: [linux-next][PATCH] mm: slub: work around unneeded lockdepwarning

[David Rientjes]

On Fri, 24 Jan 2014, Dave Hansen wrote:

> From: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
> 
> The slub code does some setup during early boot in
> early_kmem_cache_node_alloc() with some local data.  There is no
> possible way that another CPU can see this data, so the slub code
> doesn't unnecessarily lock it.  However, some new lockdep asserts
> check to make sure that add_partial() _always_ has the list_lock
> held.
> 
> Just add the locking, even though it is technically unnecessary.
> 
> Signed-off-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: Pekka Enberg <penberg@xxxxxxxxxx>
> Cc: Russell King <linux@xxxxxxxxxxxxxxxx>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
--
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/