From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hugh Dickins Date: Fri, 04 Mar 2005 19:08:30 +0000 Subject: Re: Page fault scalability patch V18: Drop first acquisition of ptl Message-Id: List-Id: References: <20050302174507.7991af94.akpm@osdl.org> <20050302185508.4cd2f618.akpm@osdl.org> <20050302201425.2b994195.akpm@osdl.org> <20050302205612.451d220b.akpm@osdl.org> <20050302222008.4910eb7b.akpm@osdl.org> <20050303132011.7c80033d.akpm@osdl.org> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: Christoph Lameter Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org On Fri, 4 Mar 2005, Christoph Lameter wrote: > On Fri, 4 Mar 2005, Hugh Dickins wrote: > > Nacked for the same reason as just given to earlier version. Ugly too. > > Ok. Then we could still get back the also ugly solution in the earlier > patchsets that acquired the spinlock separately before getting to > do_wp_page (also no need for the separate patch anymore). Patch is > then shorter too. Maybe. I should make it clear that I simply haven't examined the recent incarnations of your patch, was just commenting on an issue I could comment on quickly without needing to find time to think. So, I just want to make clear, this absence of Nack doesn't mean Ack: I remain uneasy with it all, waiting to see some architecture maintainers come along with a clear "Yes, this is how it should be". Hugh