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Wed, 4 Dec 2024 12:01:46 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id lB9jJapEUGdOHgAAD6G6ig (envelope-from ); Wed, 04 Dec 2024 12:01:46 +0000 Message-ID: Date: Wed, 4 Dec 2024 13:01:46 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Removing page->index To: Matthew Wilcox , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org Cc: linux-fbdev@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-s390@vger.kernel.org References: Content-Language: en-US From: Thomas Zimmermann Autocrypt: addr=tzimmermann@suse.de; keydata= xsBNBFs50uABCADEHPidWt974CaxBVbrIBwqcq/WURinJ3+2WlIrKWspiP83vfZKaXhFYsdg XH47fDVbPPj+d6tQrw5lPQCyqjwrCPYnq3WlIBnGPJ4/jreTL6V+qfKRDlGLWFjZcsrPJGE0 BeB5BbqP5erN1qylK9i3gPoQjXGhpBpQYwRrEyQyjuvk+Ev0K1Jc5tVDeJAuau3TGNgah4Yc hdHm3bkPjz9EErV85RwvImQ1dptvx6s7xzwXTgGAsaYZsL8WCwDaTuqFa1d1jjlaxg6+tZsB 9GluwvIhSezPgnEmimZDkGnZRRSFiGP8yjqTjjWuf0bSj5rUnTGiyLyRZRNGcXmu6hjlABEB AAHNJ1Rob21hcyBaaW1tZXJtYW5uIDx0emltbWVybWFubkBzdXNlLmRlPsLAjgQTAQgAOAIb AwULCQgHAgYVCgkICwIEFgIDAQIeAQIXgBYhBHIX+6yM6c9jRKFo5WgNwR1TC3ojBQJftODH AAoJEGgNwR1TC3ojx1wH/0hKGWugiqDgLNXLRD/4TfHBEKmxIrmfu9Z5t7vwUKfwhFL6hqvo lXPJJKQpQ2z8+X2vZm/slsLn7J1yjrOsoJhKABDi+3QWWSGkaGwRJAdPVVyJMfJRNNNIKwVb U6B1BkX2XDKDGffF4TxlOpSQzdtNI/9gleOoUA8+jy8knnDYzjBNOZqLG2FuTdicBXblz0Mf vg41gd9kCwYXDnD91rJU8tzylXv03E75NCaTxTM+FBXPmsAVYQ4GYhhgFt8S2UWMoaaABLDe 7l5FdnLdDEcbmd8uLU2CaG4W2cLrUaI4jz2XbkcPQkqTQ3EB67hYkjiEE6Zy3ggOitiQGcqp j//OwE0EWznS4AEIAMYmP4M/V+T5RY5at/g7rUdNsLhWv1APYrh9RQefODYHrNRHUE9eosYb T6XMryR9hT8XlGOYRwKWwiQBoWSDiTMo/Xi29jUnn4BXfI2px2DTXwc22LKtLAgTRjP+qbU6 3Y0xnQN29UGDbYgyyK51DW3H0If2a3JNsheAAK+Xc9baj0LGIc8T9uiEWHBnCH+RdhgATnWW GKdDegUR5BkDfDg5O/FISymJBHx2Dyoklv5g4BzkgqTqwmaYzsl8UxZKvbaxq0zbehDda8lv hFXodNFMAgTLJlLuDYOGLK2AwbrS3Sp0AEbkpdJBb44qVlGm5bApZouHeJ/+n+7r12+lqdsA EQEAAcLAdgQYAQgAIAIbDBYhBHIX+6yM6c9jRKFo5WgNwR1TC3ojBQJftOH6AAoJEGgNwR1T C3ojVSkIALpAPkIJPQoURPb1VWjh34l0HlglmYHvZszJWTXYwavHR8+k6Baa6H7ufXNQtThR yIxJrQLW6rV5lm7TjhffEhxVCn37+cg0zZ3j7zIsSS0rx/aMwi6VhFJA5hfn3T0TtrijKP4A SAQO9xD1Zk9/61JWk8OysuIh7MXkl0fxbRKWE93XeQBhIJHQfnc+YBLprdnxR446Sh8Wn/2D Ya8cavuWf2zrB6cZurs048xe0UbSW5AOSo4V9M0jzYI4nZqTmPxYyXbm30Kvmz0rYVRaitYJ 4kyYYMhuULvrJDMjZRvaNe52tkKAvMevcGdt38H4KSVXAylqyQOW5zvPc4/sq9c= In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: D00E64001D X-Stat-Signature: 81drbqswja8jpgzkbxq7kadu5dxn1d8h X-Rspam-User: X-HE-Tag: 1733313692-385021 X-HE-Meta: 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 VtPPEmZF 9lavOIMMps0YQhIP2xfCmH072DXAjtuXmFa9Q7snIFLTCRnObfJkhLvLTlBfiWiuwVm4ehnDG1UPGMgyeoTOJNXSxhaihIC/ymP7Y6ETvag0INfn2ERX9zFhDv+koruGtZffiKTT/Crg+tbLusIt8iojy026Ln3qbd6csk+R3Cntkh60oKdiZydpb84g/sMgH74hjoz8y3FM+PP/fJsO3Aj+9u+gu38J7ltw3adnorw3eQXMVlTroaK0jgyUoSOPjApmabaVCS+K9UPi9zNP8UrD7Ba/q4TykOL4oy4tTyJo8SIbIEQZiH5V7qDBqqSj48iGBmFAb2yAYEnVjEQD6Nc2gflX6SeBZAZClVG9QbudyJYvJXqK/4e6rqQ== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Hi Am 03.12.24 um 20:51 schrieb Matthew Wilcox: > I've pushed out a new tree to > git://git.infradead.org/users/willy/pagecache.git shrunk-page > aka > http://git.infradead.org/?p=users/willy/pagecache.git;a=shortlog;h=refs/heads/shrunk-page > > The observant will notice that it doesn't actually shrink struct page > yet. However, we're getting close. What it does do is rename > page->index to page->__folio_index to prevent new users of page->index > from showing up. > > There are (I believe) three build failures in that tree: > > - fb_defio It's only used for helpers of the mm code. So it should be good to change. > - fbtft And this reference should be removed IMHO. The driver's display-update code has no business in looking at struct page. Best regards Thomas > - s390's gmap (and vsie? is that the same thing?) > > Other than that, allmodconfig builds on x86 and I'm convinced the build > bots will tell me about anything else I missed. > > Lorenzo is working on fb_defio and fbtft will come along for the ride > (it's a debug printk, so could just be deleted). > > s390 is complicated. I'd really appreciate some help. > > The next step is to feed most of the patches through the appropriate > subsystems. Some have already gone into various maintainer trees > (thanks!) > > > There are still many more steps to go after this; eliminating memcg_data > is closest to complete, and after that will come (in some order) > eliminating ->lru, ->mapping, ->refcount and ->mapcount. We also need > to move page_pool out into its own structure. -- -- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Frankenstrasse 146, 90461 Nuernberg, Germany GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman HRB 36809 (AG Nuernberg)