From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hans Reiser Subject: Re: Fw: Re: [PATCH] 2.6.16-rc-mm4 reiser4 calls try_to_unmap() with 1 arg -- now takes 2 Date: Sun, 05 Feb 2006 10:42:10 -0800 Message-ID: <43E64702.9020205@namesys.com> References: <20060205003039.3067e43c.akpm@osdl.org> <43E5BB2E.5000203@namesys.com> <20060205011152.7f9b7aa9.akpm@osdl.org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: hugh@veritas.com, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, lee.schermerhorn@hp.com, Reiserfs-Dev@namesys.com, vs Return-path: To: Andrew Morton In-Reply-To: <20060205011152.7f9b7aa9.akpm@osdl.org> Sender: linux-kernel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Andrew Morton wrote: >Hans Reiser wrote: > > >>Umm, no, copy on capture needs to get enabled again as soon as we get >> past issues outsiders care about, and start dealing again with improving >> the code in the ways we think matter. There are real problems that are >> addressed by copy on capture. That it has not been worked on since >> 2.6.5 just sadly indicates how successful folks have been in distracting >> us for so long. >> >> > >Dinking with rmap internals from within a filesystem is a real problem. >Whatever needs to be done there should be done within core MM if it's done >anywhere so it actually gets maintained by the people who are likely to >break it. > >Something like >http://kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.13-rc4/2.6.13-rc4-mm1/broken-out/add-page-becoming-writable-notification.patch >might be what you're after. > > > > > I don't actually care (at least I desire that I not have to care ;-) ) about the implementation of copy-on-capture so long as it works. I am sure vs will be happy to do it within core mm when we get to where he can pay attention to it again.