From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from pizda.ninka.net (pizda.ninka.net [216.101.162.242]) by dsl2.external.hp.com (Postfix) with ESMTP id 830A84939 for ; Sat, 23 Aug 2003 18:30:35 -0600 (MDT) Date: Sat, 23 Aug 2003 17:22:51 -0700 From: "David S. Miller" To: James Bottomley Cc: hugh@veritas.com, willy@debian.org, linux-kernel@vger.kernel.org, parisc-linux@lists.parisc-linux.org, drepper@redhat.com Subject: Re: [parisc-linux] Re: Problems with kernel mmap (failing tst-mmap-eofsync in glibc on parisc) Message-Id: <20030823172251.4e656f9a.davem@redhat.com> In-Reply-To: <1061680279.1785.534.camel@mulgrave> References: <20030822110144.5f7b83c5.davem@redhat.com> <20030822113106.0503a665.davem@redhat.com> <1061578568.2053.313.camel@mulgrave> <20030822121955.619a14eb.davem@redhat.com> <1061591255.1784.636.camel@mulgrave> <20030822154100.06314c8e.davem@redhat.com> <1061600974.2090.809.camel@mulgrave> <20030823144330.5ddab065.davem@redhat.com> <1061677283.1992.471.camel@mulgrave> <20030823155312.63f996f6.davem@redhat.com> <1061680279.1785.534.camel@mulgrave> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: parisc-linux-admin@lists.parisc-linux.org Errors-To: parisc-linux-admin@lists.parisc-linux.org List-Help: List-Post: List-Subscribe: , List-Id: parisc-linux developers list List-Unsubscribe: , List-Archive: On 23 Aug 2003 18:11:16 -0500 James Bottomley wrote: > On Sat, 2003-08-23 at 17:53, David S. Miller wrote: > > How often do writes happen to files while private mappings > > to it exist? :-) This is one of the reasons I think this > > discussion is a bit silly. ... > Not having to flush the private mappings is a huge optimisation. You're not answering my question :( I know that when the case _DOES_ happen, your optimization is worthwhile, my question is not about this. My question is about how often does this case happen.