From patchwork Tue Apr 26 12:03:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Zimmermann X-Patchwork-Id: 566880 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4B885C4332F for ; Tue, 26 Apr 2022 12:04:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346290AbiDZMHN (ORCPT ); Tue, 26 Apr 2022 08:07:13 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49762 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346210AbiDZMHK (ORCPT ); Tue, 26 Apr 2022 08:07:10 -0400 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.220.29]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C0EC2DC99A for ; Tue, 26 Apr 2022 05:04:02 -0700 (PDT) Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id 566921F746; Tue, 26 Apr 2022 12:04:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1650974641; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=TiqGeTU88O5qp5VtpuiGdqw539o9k1ftULZNwBcfinY=; b=qXWZbV808igFOsDhN0QBTah36pdhAiLkaH47E8b06lVji+W7CYJuWoX16iO38T/B3NQNyd nc+FeVP5HTe7eMkOAVA7EB8B16Tn1u5Lw4Zz7MJMyK5gtea6gf+PWfN6M6IPQ8vkRJL/Cd LemEgyh8qRgYWXCAH6t4zLs1uQZy+ZU= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1650974641; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=TiqGeTU88O5qp5VtpuiGdqw539o9k1ftULZNwBcfinY=; b=hj0hTrOY9qNy+kYnLlhcy+5Sw+Bj6vN+x8evDns7szzmgI7IDooWr35qKGX93QvykVEVFR zwdaKFUus6mpAdAA== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id 294C213223; Tue, 26 Apr 2022 12:04:01 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id q/XiCLHfZ2KqBQAAMHmgww (envelope-from ); Tue, 26 Apr 2022 12:04:01 +0000 From: Thomas Zimmermann To: javierm@redhat.com, daniel@ffwll.ch, deller@gmx.de, airlied@linux.ie, maarten.lankhorst@linux.intel.com Cc: dri-devel@lists.freedesktop.org, linux-fbdev@vger.kernel.org, Thomas Zimmermann Subject: [PATCH v3 0/5] fbdev: Decouple deferred I/O from struct page Date: Tue, 26 Apr 2022 14:03:54 +0200 Message-Id: <20220426120359.17437-1-tzimmermann@suse.de> X-Mailer: git-send-email 2.36.0 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fbdev@vger.kernel.org Rework the fbdev deferred-I/O to not interfere with fields of struct page. All references from deferred-I/O code to fields in struct page are gone. The rsp state is help in a separate pageref structure. v3: * rename pagelist to pagereflist (Sam) * use pageref->offset over page->index (Javier) v2: * split off from a larger patchset [1] [1] https://lore.kernel.org/dri-devel/20220303205839.28484-1-tzimmermann@suse.de/ Thomas Zimmermann (5): fbdev: Put mmap for deferred I/O into drivers fbdev: Track deferred-I/O pages in pageref struct fbdev: Refactor implementation of page_mkwrite fbdev: Rename pagelist to pagereflist for deferred I/O fbdev: Use pageref offset for deferred-I/O writeback drivers/gpu/drm/drm_fb_helper.c | 15 +- drivers/gpu/drm/vmwgfx/vmwgfx_fb.c | 10 +- drivers/hid/hid-picolcd_fb.c | 3 +- drivers/staging/fbtft/fbtft-core.c | 21 ++- drivers/video/fbdev/broadsheetfb.c | 27 ++-- drivers/video/fbdev/core/fb_defio.c | 212 +++++++++++++++++-------- drivers/video/fbdev/core/fbmem.c | 21 +-- drivers/video/fbdev/hecubafb.c | 4 +- drivers/video/fbdev/hyperv_fb.c | 10 +- drivers/video/fbdev/metronomefb.c | 23 ++- drivers/video/fbdev/sh_mobile_lcdcfb.c | 27 ++-- drivers/video/fbdev/smscufx.c | 13 +- drivers/video/fbdev/ssd1307fb.c | 4 +- drivers/video/fbdev/udlfb.c | 18 +-- drivers/video/fbdev/xen-fbfront.c | 10 +- include/drm/drm_fb_helper.h | 3 +- include/linux/fb.h | 17 +- 17 files changed, 264 insertions(+), 174 deletions(-) base-commit: 0e7deff6446a4ba2c75f499a0bfa80cd6a15c129