From patchwork Wed Feb 8 14:56:10 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 13133123 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 6F057C64EC5 for ; Wed, 8 Feb 2023 14:56:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230486AbjBHO4b (ORCPT ); Wed, 8 Feb 2023 09:56:31 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34124 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230262AbjBHO43 (ORCPT ); Wed, 8 Feb 2023 09:56:29 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 26D6C12850; Wed, 8 Feb 2023 06:56:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=P8+rJcPo0Fi8EeQaL5ojtZrZIVY5GFF+sRbE8RbykGM=; b=jFB+zuP/GErfB3+KWN8VrM6GCP y+Lkp83XJ744+OM2jyf/Qmdrtb6ObhoSe5sdQ+wx0gN2/g9dJ/1iNRGIC31NbAAelMJpegYDswwC2 u00Br5wNVOIPD4wdppYg12n4rKId3hnSJkSRpVePG9OwbnprjAUTj4uc0vRBPp7DMo1YSkqa8GADu eTB2K1phkytHNMgtxFiic62PKkoHRKTGH42Gm8M1JR46xKpM3ePHkuI+uniHuVbMDdP/wam/IDHIA fqFRMYNRoqVaDElgoSphdworh2Wkncu6YZU9KsKaiqOBMahJxVDtIsOra++HVgxXHnJ9N+HSFlePj p8klytRw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pPlrp-001I3E-Ck; Wed, 08 Feb 2023 14:56:13 +0000 From: "Matthew Wilcox (Oracle)" To: linux-cifs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" Subject: [PATCH 1/2] cifs: Use a folio in cifs_page_mkwrite() Date: Wed, 8 Feb 2023 14:56:10 +0000 Message-Id: <20230208145611.307706-2-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230208145611.307706-1-willy@infradead.org> References: <20230208145611.307706-1-willy@infradead.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org Avoids many calls to compound_head() and removes calls to various compat functions. Signed-off-by: Matthew Wilcox (Oracle) --- fs/cifs/file.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/fs/cifs/file.c b/fs/cifs/file.c index 5568a5f4bc5a..233ce38ab612 100644 --- a/fs/cifs/file.c +++ b/fs/cifs/file.c @@ -4516,23 +4516,22 @@ cifs_read(struct file *file, char *read_data, size_t read_size, loff_t *offset) * If the page is mmap'ed into a process' page tables, then we need to make * sure that it doesn't change while being written back. */ -static vm_fault_t -cifs_page_mkwrite(struct vm_fault *vmf) +static vm_fault_t cifs_page_mkwrite(struct vm_fault *vmf) { - struct page *page = vmf->page; + struct folio *folio = page_folio(vmf->page); - /* Wait for the page to be written to the cache before we allow it to - * be modified. We then assume the entire page will need writing back. + /* Wait for the folio to be written to the cache before we allow it to + * be modified. We then assume the entire folio will need writing back. */ #ifdef CONFIG_CIFS_FSCACHE - if (PageFsCache(page) && - wait_on_page_fscache_killable(page) < 0) + if (folio_test_fscache(folio) && + folio_wait_fscache_killable(folio) < 0) return VM_FAULT_RETRY; #endif - wait_on_page_writeback(page); + folio_wait_writeback(folio); - if (lock_page_killable(page) < 0) + if (folio_lock_killable(folio) < 0) return VM_FAULT_RETRY; return VM_FAULT_LOCKED; } From patchwork Wed Feb 8 14:56:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Matthew Wilcox X-Patchwork-Id: 13133124 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 F35CEC05027 for ; Wed, 8 Feb 2023 14:56:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231373AbjBHO4c (ORCPT ); Wed, 8 Feb 2023 09:56:32 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34160 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230178AbjBHO43 (ORCPT ); Wed, 8 Feb 2023 09:56:29 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3CA3F212B3; Wed, 8 Feb 2023 06:56:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=baZ/nm5e+R3XpfQTMaFkd+YUn4nTSX5Qn+q+GEDnUZo=; b=Gx5CVRVtkXGKd05GkNug9twl21 3Yfy4xwVgLapq4T07IKuCqXyQ/xIoSY6UQ4BQLUR8utAE97rmLAQ2CHuXDZVdEllbJHNJg7UDEPcb LA3is5r4btsWGjLgp3Vza9VfjjfZ5WPW62mgxbQsW9k1VuAVCdwFsNFoCEKvmqdDwuWcHaA2mNmDp 6pwQQpwU5kcZfl5LqI3QUATioxNPHwuWXXxAF9CjI0buFVcvDpWxUCkYCuw4sAn58nellOtfxi/JG JYO6qJ/cfcDsRA8sHH+6gLaYdZ83R6JVkid+OcotN45MCdl2HqzO4gs3NM4B1mLKTJpkbds4kpMlK pp2+c+HQ==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pPlrp-001I3K-Hd; Wed, 08 Feb 2023 14:56:13 +0000 From: "Matthew Wilcox (Oracle)" To: linux-cifs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" Subject: [PATCH 2/2] filemap: Remove lock_page_killable() Date: Wed, 8 Feb 2023 14:56:11 +0000 Message-Id: <20230208145611.307706-3-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230208145611.307706-1-willy@infradead.org> References: <20230208145611.307706-1-willy@infradead.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org There are no more callers; remove this function before any more appear. Signed-off-by: Matthew Wilcox (Oracle) --- include/linux/pagemap.h | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h index cf0677419981..51b75b89730e 100644 --- a/include/linux/pagemap.h +++ b/include/linux/pagemap.h @@ -993,16 +993,6 @@ static inline int folio_lock_killable(struct folio *folio) return 0; } -/* - * lock_page_killable is like lock_page but can be interrupted by fatal - * signals. It returns 0 if it locked the page and -EINTR if it was - * killed while waiting. - */ -static inline int lock_page_killable(struct page *page) -{ - return folio_lock_killable(page_folio(page)); -} - /* * folio_lock_or_retry - Lock the folio, unless this would block and the * caller indicated that it can handle a retry.