Message-ID: <1430429197.2475.55.camel@j-VirtualBox>
Subject: Re: [PATCH v2 2/5] sched, numa: Document usages of mm->numa_scan_seq
From: Jason Low <jason.low2@hp.com>
To: Davidlohr Bueso <dave@stgolabs.net>
Cc: Waiman Long <waiman.long@hp.com>, Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
        linux-kernel@vger.kernel.org,
        "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
        Andrew Morton <akpm@linux-foundation.org>,
        Oleg Nesterov <oleg@redhat.com>,
        Frederic Weisbecker <fweisbec@gmail.com>, Mel Gorman <mgorman@suse.de>,
        Rik van Riel <riel@redhat.com>, Steven Rostedt <rostedt@goodmis.org>,
        Preeti U Murthy <preeti@linux.vnet.ibm.com>,
        Mike Galbraith <umgwanakikbuti@gmail.com>,
        Aswin Chandramouleeswaran <aswin@hp.com>,
        Scott J Norton <scott.norton@hp.com>, jason.low2@hp.com
Date: Thu, 30 Apr 2015 14:26:37 -0700
In-Reply-To: <1430420047.2011.41.camel@stgolabs.net>
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On Thu, 2015-04-30 at 11:54 -0700, Davidlohr Bueso wrote:

> I also wonder why this patch is included in a set called
> "sched, timer: Improve scalability of itimers" ;)

Good point  :)

The reason these first 2 patches were included in this patchset is
because patch 3 depended on patch 1 (particularly due to the
modifications to posix_cpu_timers_init_group() which happen to use
ACCESS_ONCE after initializing the thread_group_cputimer lock). Likewise
patch 2 depended on patch 1. Thus, I included these changes to make
applying these patches a bit simpler.

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