From: Johannes Weiner <hannes@cmpxchg.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-mm@kvack.org, Rik van Riel <riel@redhat.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Mel Gorman <mgorman@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
Minchan Kim <minchan.kim@gmail.com>,
Hugh Dickins <hughd@google.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 4/5] mm + fs: provide refault distance to page cache instantiations
Date: Tue, 1 May 2012 11:55:43 +0200 [thread overview]
Message-ID: <20120501095543.GA2112@cmpxchg.org> (raw)
In-Reply-To: <1335864640.13683.116.camel@twins>
On Tue, May 01, 2012 at 11:30:40AM +0200, Peter Zijlstra wrote:
> On Tue, 2012-05-01 at 10:41 +0200, Johannes Weiner wrote:
> > Every site that does a find_or_create()-style allocation is converted
> > to pass this refault information to the page_cache_alloc() family of
> > functions, which in turn passes it down to the page allocator via
> > current->refault_distance.
>
> That is rather icky..
Fair enough, I just went with the easier solution to get things off
the ground instead of dealing with adding an extra parameter to layers
of config-dependent gfp API. I'll revisit this for v2.
WARNING: multiple messages have this Message-ID (diff)
From: Johannes Weiner <hannes@cmpxchg.org>
To: Peter Zijlstra <peterz@infradead.org>
Cc: linux-mm@kvack.org, Rik van Riel <riel@redhat.com>,
Andrea Arcangeli <aarcange@redhat.com>,
Mel Gorman <mgorman@suse.de>,
Andrew Morton <akpm@linux-foundation.org>,
Minchan Kim <minchan.kim@gmail.com>,
Hugh Dickins <hughd@google.com>,
KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 4/5] mm + fs: provide refault distance to page cache instantiations
Date: Tue, 1 May 2012 11:55:43 +0200 [thread overview]
Message-ID: <20120501095543.GA2112@cmpxchg.org> (raw)
In-Reply-To: <1335864640.13683.116.camel@twins>
On Tue, May 01, 2012 at 11:30:40AM +0200, Peter Zijlstra wrote:
> On Tue, 2012-05-01 at 10:41 +0200, Johannes Weiner wrote:
> > Every site that does a find_or_create()-style allocation is converted
> > to pass this refault information to the page_cache_alloc() family of
> > functions, which in turn passes it down to the page allocator via
> > current->refault_distance.
>
> That is rather icky..
Fair enough, I just went with the easier solution to get things off
the ground instead of dealing with adding an extra parameter to layers
of config-dependent gfp API. I'll revisit this for v2.
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next prev parent reply other threads:[~2012-05-01 9:56 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-01 8:41 [patch 0/5] refault distance-based file cache sizing Johannes Weiner
2012-05-01 8:41 ` Johannes Weiner
2012-05-01 8:41 ` [patch 1/5] mm: readahead: move radix tree hole searching here Johannes Weiner
2012-05-01 8:41 ` Johannes Weiner
2012-05-01 21:06 ` Rik van Riel
2012-05-01 21:06 ` Rik van Riel
2012-05-01 8:41 ` [patch 2/5] mm + fs: prepare for non-page entries in page cache Johannes Weiner
2012-05-01 8:41 ` Johannes Weiner
2012-05-01 19:02 ` Andrew Morton
2012-05-01 19:02 ` Andrew Morton
2012-05-01 20:15 ` Johannes Weiner
2012-05-01 20:15 ` Johannes Weiner
2012-05-01 20:24 ` Andrew Morton
2012-05-01 20:24 ` Andrew Morton
2012-05-01 21:14 ` Rik van Riel
2012-05-01 21:14 ` Rik van Riel
2012-05-01 21:29 ` Johannes Weiner
2012-05-01 21:29 ` Johannes Weiner
2012-05-01 8:41 ` [patch 3/5] mm + fs: store shadow pages " Johannes Weiner
2012-05-01 8:41 ` Johannes Weiner
2012-05-01 8:41 ` [patch 4/5] mm + fs: provide refault distance to page cache instantiations Johannes Weiner
2012-05-01 8:41 ` Johannes Weiner
2012-05-01 9:30 ` Peter Zijlstra
2012-05-01 9:30 ` Peter Zijlstra
2012-05-01 9:30 ` Peter Zijlstra
2012-05-01 9:55 ` Johannes Weiner [this message]
2012-05-01 9:55 ` Johannes Weiner
2012-05-01 9:58 ` Peter Zijlstra
2012-05-01 9:58 ` Peter Zijlstra
2012-05-01 9:58 ` Peter Zijlstra
2012-05-01 8:41 ` [patch 5/5] mm: refault distance-based file cache sizing Johannes Weiner
2012-05-01 8:41 ` Johannes Weiner
2012-05-01 14:13 ` Minchan Kim
2012-05-01 14:13 ` Minchan Kim
2012-05-01 15:38 ` Johannes Weiner
2012-05-01 15:38 ` Johannes Weiner
2012-05-02 5:21 ` Minchan Kim
2012-05-02 5:21 ` Minchan Kim
2012-05-02 1:57 ` Andrea Arcangeli
2012-05-02 1:57 ` Andrea Arcangeli
2012-05-02 6:23 ` Johannes Weiner
2012-05-02 6:23 ` Johannes Weiner
2012-05-02 15:11 ` Andrea Arcangeli
2012-05-02 15:11 ` Andrea Arcangeli
2012-05-01 19:08 ` [patch 0/5] " Andrew Morton
2012-05-01 19:08 ` Andrew Morton
2012-05-01 21:19 ` Rik van Riel
2012-05-01 21:19 ` Rik van Riel
2012-05-01 21:26 ` Andrew Morton
2012-05-01 21:26 ` Andrew Morton
2012-05-02 1:10 ` Andrea Arcangeli
2012-05-02 1:10 ` Andrea Arcangeli
2012-05-03 13:15 ` Johannes Weiner
2012-05-03 13:15 ` Johannes Weiner
2012-05-16 5:25 ` nai.xia
2012-05-16 5:25 ` nai.xia
2012-05-16 6:51 ` Johannes Weiner
2012-05-16 6:51 ` Johannes Weiner
2012-05-16 12:56 ` nai.xia
2012-05-16 12:56 ` nai.xia
2012-05-17 21:08 ` Johannes Weiner
2012-05-17 21:08 ` Johannes Weiner
2012-05-18 3:44 ` Nai Xia
2012-05-18 3:44 ` Nai Xia
2012-05-18 15:07 ` Rik van Riel
2012-05-18 15:07 ` Rik van Riel
2012-05-18 15:30 ` Nai Xia
2012-05-18 15:30 ` Nai Xia
2012-05-18 15:30 ` Nai Xia
2012-05-17 13:11 ` Rik van Riel
2012-05-17 13:11 ` Rik van Riel
2012-05-18 5:03 ` Nai Xia
2012-05-18 5:03 ` Nai Xia
2012-05-18 5:03 ` Nai Xia
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