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Date: Thu, 28 Aug 2014 11:42:45 +0800 From: WANG Chao <chaowang@...hat.com> To: Christoph Lameter <cl@...ux.com> Cc: Andrew Morton <akpm@...ux-foundation.org>, Pekka Enberg <penberg@...nel.org>, David Rientjes <rientjes@...gle.com>, Joonsoo Kim <iamjoonsoo.kim@....com>, "open list:SLAB ALLOCATOR" <linux-mm@...ck.org>, open list <linux-kernel@...r.kernel.org> Subject: Re: [PATCH] mm, slub: do not add duplicate sysfs On 08/27/14 at 10:25am, Christoph Lameter wrote: > On Wed, 27 Aug 2014, WANG Chao wrote: > > > Mergeable slab can be changed to unmergeable after tuning its sysfs > > interface, for example echo 1 > trace. But the sysfs kobject with the unique > > name will be still there. > > Hmmm... Merging should be switched off if any debugging features are > enabled. Maybe we need to disable modifying debug options for an active > cache? This could cause other issues as well since the debug options will > then apply to multiple caches. Yes, currently merging is already switched off if there's any debug flag. It sounds a bit overkill to me to disable runtime configuration. I don't know how many people out there would trace a mergeable (multiple) caches. Well it sounds better if we give them the chance to that... Thanks WANG Chao -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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