From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 10 Oct 2007 05:06:18 +0100 (BST) From: Hugh Dickins Subject: Re: remove zero_page (was Re: -mm merge plans for 2.6.24) In-Reply-To: <200710092015.07741.nickpiggin@yahoo.com.au> Message-ID: References: <20071001142222.fcaa8d57.akpm@linux-foundation.org> <200710091931.51564.nickpiggin@yahoo.com.au> <200710092015.07741.nickpiggin@yahoo.com.au> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Nick Piggin Cc: Linus Torvalds , Andrew Morton , linux-mm@kvack.org, linux-kernel@vger.kernel.org List-ID: On Tue, 9 Oct 2007, Nick Piggin wrote: > by it ;) To prove my point: the *first* approach I posted to fix this > problem was exactly a patch to special-case the zero_page refcounting > which was removed with my PageReserved patch. Neither Hugh nor yourself > liked it one bit! True (speaking for me; I forget whether Linus ever got to see it). I apologize to you, Nick, for getting you into this position of fighting for something which wasn't your choice in the first place. If I thought we'd have a better kernel by dropping this patch and going back to one that just avoids the refcounting, I'd say do it. No, I still think it's worth trying this one first. But best have your avoid-the-refcounting patch ready and reviewed for emergency use if regression does show up somewhere. Thanks, Hugh [My mails out are at present getting randomly delayed by six hours or so, which makes it extra hard for me to engage usefully in any thread.] -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org