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Date: Wed, 7 Mar 2012 18:09:17 -0800 From: Andrew Morton <akpm@...ux-foundation.org> To: David Rientjes <rientjes@...gle.com> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>, linux-kernel@...r.kernel.org, linux-mm@...ck.org Subject: Re: [patch 1/2] mm, counters: remove task argument to sync_mm_rss and __sync_task_rss_stat On Wed, 7 Mar 2012 17:40:04 -0800 (PST) David Rientjes <rientjes@...gle.com> wrote: > On Wed, 7 Mar 2012, Andrew Morton wrote: > > > hm, with my gcc it's beneficial to cache `current' in a local. But > > when I tried that, Weird Things happened, because gcc has gone and > > decided to inline __sync_task_rss_stat() into its callers. I don't see > > how that could have been the right thing to do. > > > > c06b1fca18c3 offers some advice :) But is it right? I handled a patch a month or two ago where caching current made a nice improvement. -- 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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