From: David Rientjes <rientjes@google.com>
To: Aaron Lu <aaron.lu@intel.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Huang Ying <ying.huang@intel.com>,
Dave Hansen <dave.hansen@intel.com>,
Kemi Wang <kemi.wang@intel.com>,
Tim Chen <tim.c.chen@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>, Michal Hocko <mhocko@suse.com>,
Vlastimil Babka <vbabka@suse.cz>,
Mel Gorman <mgorman@techsingularity.net>,
Matthew Wilcox <willy@infradead.org>
Subject: Re: [PATCH v4 1/3] mm/free_pcppages_bulk: update pcp->count inside
Date: Thu, 1 Mar 2018 04:11:11 -0800 (PST) [thread overview]
Message-ID: <alpine.DEB.2.20.1803010410580.91729@chino.kir.corp.google.com> (raw)
In-Reply-To: <20180301062845.26038-2-aaron.lu@intel.com>
On Thu, 1 Mar 2018, Aaron Lu wrote:
> Matthew Wilcox found that all callers of free_pcppages_bulk() currently
> update pcp->count immediately after so it's natural to do it inside
> free_pcppages_bulk().
>
> No functionality or performance change is expected from this patch.
>
> Suggested-by: Matthew Wilcox <willy@infradead.org>
> Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: David Rientjes <rientjes@google.com>
WARNING: multiple messages have this Message-ID (diff)
From: David Rientjes <rientjes@google.com>
To: Aaron Lu <aaron.lu@intel.com>
Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Huang Ying <ying.huang@intel.com>,
Dave Hansen <dave.hansen@intel.com>,
Kemi Wang <kemi.wang@intel.com>,
Tim Chen <tim.c.chen@linux.intel.com>,
Andi Kleen <ak@linux.intel.com>, Michal Hocko <mhocko@suse.com>,
Vlastimil Babka <vbabka@suse.cz>,
Mel Gorman <mgorman@techsingularity.net>,
Matthew Wilcox <willy@infradead.org>
Subject: Re: [PATCH v4 1/3] mm/free_pcppages_bulk: update pcp->count inside
Date: Thu, 1 Mar 2018 04:11:11 -0800 (PST) [thread overview]
Message-ID: <alpine.DEB.2.20.1803010410580.91729@chino.kir.corp.google.com> (raw)
In-Reply-To: <20180301062845.26038-2-aaron.lu@intel.com>
On Thu, 1 Mar 2018, Aaron Lu wrote:
> Matthew Wilcox found that all callers of free_pcppages_bulk() currently
> update pcp->count immediately after so it's natural to do it inside
> free_pcppages_bulk().
>
> No functionality or performance change is expected from this patch.
>
> Suggested-by: Matthew Wilcox <willy@infradead.org>
> Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: David Rientjes <rientjes@google.com>
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next prev parent reply other threads:[~2018-03-01 12:11 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-01 6:28 [PATCH v4 0/3] mm: improve zone->lock scalability Aaron Lu
2018-03-01 6:28 ` Aaron Lu
2018-03-01 6:28 ` [PATCH v4 1/3] mm/free_pcppages_bulk: update pcp->count inside Aaron Lu
2018-03-01 6:28 ` Aaron Lu
2018-03-01 12:11 ` David Rientjes [this message]
2018-03-01 12:11 ` David Rientjes
2018-03-01 13:45 ` Michal Hocko
2018-03-01 13:45 ` Michal Hocko
2018-03-12 13:22 ` Vlastimil Babka
2018-03-13 2:11 ` Aaron Lu
2018-03-01 6:28 ` [PATCH v4 2/3] mm/free_pcppages_bulk: do not hold lock when picking pages to free Aaron Lu
2018-03-01 6:28 ` Aaron Lu
2018-03-01 13:55 ` Michal Hocko
2018-03-01 13:55 ` Michal Hocko
2018-03-02 7:15 ` Aaron Lu
2018-03-02 7:15 ` Aaron Lu
2018-03-02 15:34 ` Dave Hansen
2018-03-02 15:34 ` Dave Hansen
2018-03-02 7:31 ` Huang, Ying
2018-03-02 7:31 ` Huang, Ying
2018-03-02 0:01 ` Andrew Morton
2018-03-02 0:01 ` Andrew Morton
2018-03-02 8:01 ` Aaron Lu
2018-03-02 8:01 ` Aaron Lu
2018-03-02 21:23 ` Andrew Morton
2018-03-02 21:23 ` Andrew Morton
2018-03-02 21:25 ` Dave Hansen
2018-03-02 21:25 ` Dave Hansen
2018-03-12 14:22 ` Vlastimil Babka
2018-03-13 3:34 ` Aaron Lu
2018-03-22 15:17 ` Matthew Wilcox
2018-03-26 3:03 ` Aaron Lu
2018-03-01 6:28 ` [PATCH v4 3/3] mm/free_pcppages_bulk: prefetch buddy while not holding lock Aaron Lu
2018-03-01 6:28 ` Aaron Lu
2018-03-01 14:00 ` Michal Hocko
2018-03-01 14:00 ` Michal Hocko
2018-03-02 8:31 ` Aaron Lu
2018-03-02 8:31 ` Aaron Lu
2018-03-02 17:55 ` Vlastimil Babka
2018-03-02 17:55 ` Vlastimil Babka
2018-03-02 18:00 ` Dave Hansen
2018-03-02 18:00 ` Dave Hansen
2018-03-02 18:08 ` Vlastimil Babka
2018-03-02 18:08 ` Vlastimil Babka
2018-03-05 11:41 ` Aaron Lu
2018-03-05 11:41 ` Aaron Lu
2018-03-05 11:48 ` Aaron Lu
2018-03-05 11:48 ` Aaron Lu
2018-03-06 7:55 ` Vlastimil Babka
2018-03-06 7:55 ` Vlastimil Babka
2018-03-06 12:27 ` Aaron Lu
2018-03-06 12:27 ` Aaron Lu
2018-03-06 12:53 ` Matthew Wilcox
2018-03-06 12:53 ` Matthew Wilcox
2018-03-02 0:09 ` Andrew Morton
2018-03-02 0:09 ` Andrew Morton
2018-03-02 8:27 ` Aaron Lu
2018-03-02 8:27 ` Aaron Lu
2018-03-09 8:24 ` [PATCH v4 3/3 update] " Aaron Lu
2018-03-09 21:58 ` Andrew Morton
2018-03-10 14:46 ` Aaron Lu
2018-03-12 15:05 ` Vlastimil Babka
2018-03-12 17:32 ` Dave Hansen
2018-03-13 3:35 ` Aaron Lu
2018-03-13 7:04 ` Aaron Lu
2018-03-20 9:50 ` Vlastimil Babka
2018-03-20 11:31 ` [PATCH v4 3/3 update2] " Aaron Lu
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