From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BA6781AB53A; Wed, 4 Dec 2024 12:01:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733313710; cv=none; b=uXjwvcSdaGhShmjWYEQgeXZS/7KYDZiJ7/aLQ+B7m/0qgFZ7sH0LqrxyzepUGl0mjk6O6aDCxyCPuKoXRT5KjFKkZcC2lxLqJ8MJaaQI7lIX16hMSrmsKlJ0lZVUcH0xJBiJr3YO4j09QuK59K4XQLqgb2MOZcQXcRAq8uUm8o0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733313710; c=relaxed/simple; bh=HTtDsJl8UjVCOZCNAauh17Ovd5yZpq3aDefXX2AeQvA=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=lj6R82cu3qcKmMokZMa4JMuYu09yHbYK1XMAuZ8QUPSAmL0qHS55pesdy7bq9d20FoWYhV+pLk7JO0l8LEhm42bnJs96q7rd4zLuGgvuVchFDq1O0VuVijLA/QgS56B4481XSxijbkFmZUSOzy5dhT5+VhhQHPYwzS6cQRU0Iqk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=NjxamjzG; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=ojpZ9GOu; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b=xMp+M91r; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b=shBmRZHn; arc=none smtp.client-ip=195.135.223.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="NjxamjzG"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="ojpZ9GOu"; dkim=pass (1024-bit key) header.d=suse.de header.i=@suse.de header.b="xMp+M91r"; dkim=permerror (0-bit key) header.d=suse.de header.i=@suse.de header.b="shBmRZHn" Received: from imap1.dmz-prg2.suse.org (unknown [10.150.64.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id D0B1D1F38E; Wed, 4 Dec 2024 12:01:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1733313707; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=hdQpCtHb/G8boTtOws0ht3i2N81j+VDcQZjqp9/HdvQ=; b=NjxamjzGcjXW6to6l67i6CoFAKcBDp4lGRx+Rds0l5QPKt+rfXLehVdkQTKX94nXvnqWVn dpXrLNfg8NxZPLWdXuJH7UspxltmvsLZpTdjk4Xb0x9EFG63mYpAFK9V7Ez1jK5CSIJzXz 6JkyLctehKOKOrnNuIQ38QxoDHHBxB8= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1733313707; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=hdQpCtHb/G8boTtOws0ht3i2N81j+VDcQZjqp9/HdvQ=; b=ojpZ9GOuJXNyR/vp6XsHoLsOXhJI4cOfvhNlDca8oGvfzYIRMVPve4oCWqmADqbjdo4M+A 0xAwqZEZjWrYLKAg== Authentication-Results: smtp-out2.suse.de; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1733313706; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=hdQpCtHb/G8boTtOws0ht3i2N81j+VDcQZjqp9/HdvQ=; b=xMp+M91r2pR9VfINWZDH6sdvftrKE19XFnk96zw5DBlW4nXRAP5NrINq6NY8kLMk1U1CUr 030PFr75NrEb++m4vhg+/vZ50LhBHmFpJ0ZxxDMviI0iqFqX2YmVkIRSfFX74bpkwEz6cp Coa9deNVsd9x/qtwOsQ3oJzzN1mFGI8= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1733313706; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references:autocrypt:autocrypt; bh=hdQpCtHb/G8boTtOws0ht3i2N81j+VDcQZjqp9/HdvQ=; b=shBmRZHndiZc4wVndDm9+gtzuB5CAsfzjQ7mNQFJ5f3zelUPbyWxeNnriDgCHAtmxZeazC Wb/ZzNzcpZo2grAA== Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id 9E8B31396E; 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 Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: 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-Spam-Level: X-Spamd-Result: default: False [-4.30 / 50.00]; BAYES_HAM(-3.00)[100.00%]; NEURAL_HAM_LONG(-1.00)[-1.000]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; RCVD_VIA_SMTP_AUTH(0.00)[]; RCPT_COUNT_SEVEN(0.00)[7]; ARC_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; MID_RHS_MATCH_FROM(0.00)[]; RCVD_TLS_ALL(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,suse.de:mid] X-Spam-Score: -4.30 X-Spam-Flag: NO 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)