From: "Ulrich Drepper" <drepper@gmail.com>
To: Christoph Hellwig <hch@infradead.org>,
Andrew Morton <akpm@linux-foundation.org>,
Rik van Riel <riel@redhat.com>,
linux-kernel <linux-kernel@vger.kernel.org>,
linux-mm <linux-mm@kvack.org>,
"David S. Miller" <davem@davemloft.net>
Subject: Re: [PATCH] lazy freeing of memory through MADV_FREE
Date: Sun, 22 Apr 2007 09:55:18 -0700 [thread overview]
Message-ID: <a36005b50704220955u7153ea76sef403442bbc805a5@mail.gmail.com> (raw)
In-Reply-To: <20070422091658.GB1558@infradead.org>
On 4/22/07, Christoph Hellwig <hch@infradead.org> wrote:
> Why isn't MADV_FREE defined to 5 for linux? It's our first free madv
> value? Also the behaviour should better match the one in solaris or BSD,
> the last thing we need is slightly different behaviour from operating
> systems supporting this for ages.
The behavior should indeed be identical. Both implementations
restrict MADV_FREE to work on anonymous memory and it is unspecified
whether a renewed access yields to a zerod page being created or
whether the old content is still there. So, just use 0x5 for both the
Linux and Solaris version on sparc.
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prev parent reply other threads:[~2007-04-22 16:55 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-04-17 7:15 Rik van Riel
2007-04-19 21:15 ` [PATCH] lazy freeing of memory through MADV_FREE 2/2 Rik van Riel
2007-04-20 21:03 ` Andrew Morton
2007-04-20 21:24 ` Ulrich Drepper
2007-04-21 7:37 ` Hugh Dickins
2007-04-21 16:32 ` Ulrich Drepper
2007-04-20 20:57 ` [PATCH] lazy freeing of memory through MADV_FREE Andrew Morton
2007-04-20 21:38 ` Rik van Riel
2007-04-20 22:06 ` Andrew Morton
2007-04-20 23:52 ` Rik van Riel
2007-04-21 0:48 ` Eric Dumazet
2007-04-21 3:58 ` Rik van Riel
2007-04-21 7:12 ` Jakub Jelinek
2007-04-23 4:36 ` Nick Piggin
2007-04-22 2:36 ` Nick Piggin
2007-04-22 2:50 ` Nick Piggin
2007-04-22 6:31 ` Rik van Riel
2007-04-23 0:16 ` Nick Piggin
2007-04-23 3:53 ` Rik van Riel
2007-04-23 3:58 ` Nick Piggin
2007-04-23 10:07 ` Nick Piggin
2007-04-23 10:12 ` Rik van Riel
2007-04-23 3:59 ` Rik van Riel
2007-04-23 9:20 ` Rik van Riel
2007-04-23 10:21 ` Nick Piggin
2007-04-23 10:31 ` Rik van Riel
2007-04-23 10:35 ` Nick Piggin
2007-04-23 10:44 ` Rik van Riel
2007-04-24 1:15 ` Nick Piggin
2007-04-24 1:58 ` Rik van Riel
2007-04-24 2:16 ` Nick Piggin
2007-04-24 4:42 ` Paul Mackerras
2007-04-24 5:13 ` Rik van Riel
2007-04-24 2:53 ` Rik van Riel
2007-04-24 3:08 ` Andrew Morton
2007-04-23 10:44 ` Jakub Jelinek
2007-04-23 11:45 ` Rik van Riel
2007-04-23 4:28 ` Rik van Riel
2007-04-21 7:24 ` Hugh Dickins
2007-04-21 18:06 ` Rik van Riel
2007-04-22 8:18 ` Andrew Morton
2007-04-22 9:16 ` Christoph Hellwig
2007-04-22 16:55 ` Ulrich Drepper [this message]
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