From patchwork Sun Aug 27 13:28:32 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hao Xu X-Patchwork-Id: 1826522 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; secure) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=dFByFr/p; dkim=fail reason="signature verification failed" (1024-bit key; unprotected) header.d=linux.dev header.i=@linux.dev header.a=rsa-sha256 header.s=key1 header.b=WXr39RUh; dkim-atps=neutral Authentication-Results: legolas.ozlabs.org; spf=none (no SPF record) smtp.mailfrom=lists.infradead.org (client-ip=2607:7c80:54:3::133; helo=bombadil.infradead.org; envelope-from=linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org; receiver=patchwork.ozlabs.org) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (secp384r1) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4RYZSQ0WHkz1yhY for ; Sun, 27 Aug 2023 23:35:17 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=EdYRrK2kSMaRt6/prdrz1rwpdkRDwLLs4XqaiQ0qHrE=; b=dFByFr/pvEte0d U3jtrU1JsAn4TWA1BMXH5IcyPgC5a37WLTw9pT4Sl2iI2VszlL9JlWa9s3iIFV6vzrj8JQYGEoIyQ 28rp+lJ4OB1SfnbsRs2WzRyJnVFFLCkJD9AqfCoXt8LrlNPXmEAxhBgHA9E9FTFg1KC7Gp+QO4zcE ZwyFumf0UXV5LmeussvjpxXbO+QHUBz35A+AjTBLRw618NbPCMeIr9PyRmHaulRkBJtE/qjiIMYnd Z8XJ7RWAyI5KbEjlAykU/HpovylEVzxAuoovVVsI2IXiHQb2Ww4nkQH/C45Dc5cXkQjO49RfJrHLS YKmfylKzaMyPHcrDsDkQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qaFuh-0086K2-2V; Sun, 27 Aug 2023 13:34:47 +0000 Received: from out-243.mta1.migadu.com ([95.215.58.243]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qaFud-0086Hr-1G for linux-mtd@lists.infradead.org; Sun, 27 Aug 2023 13:34:45 +0000 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1693143280; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=X5RgYva0uI/YfpMcRAQXXXC0hBNumZORbEO2XQnoCOE=; b=WXr39RUhGjmbBKUuqHmNng9tnfRreU8ks2ZtLjekYh53jHM4CnAQcsfBzBDABn1mkShot8 ZX46/udLE4Y2+Gp8W4OGBBchscS3B/zTnSSJs8rd29bz5YyB6Ia5W1tSVuXmmsCsWASJVj OhE3i3OIyl7cEamjJGJ1G7EdndXC44c= From: Hao Xu To: io-uring@vger.kernel.org, Jens Axboe Cc: Dominique Martinet , Pavel Begunkov , Christian Brauner , Alexander Viro , Stefan Roesch , Clay Harris , Dave Chinner , "Darrick J . Wong" , linux-fsdevel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-ext4@vger.kernel.org, linux-cachefs@redhat.com, ecryptfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-unionfs@vger.kernel.org, bpf@vger.kernel.org, netdev@vger.kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org, linux-btrfs@vger.kernel.org, codalist@coda.cs.cmu.edu, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, linux-mm@kvack.org, linux-nilfs@vger.kernel.org, devel@lists.orangefs.org, linux-cifs@vger.kernel.org, samba-technical@lists.samba.org, linux-mtd@lists.infradead.org, Wanpeng Li Subject: [PATCH 08/11] vfs: move file_accessed() to the beginning of iterate_dir() Date: Sun, 27 Aug 2023 21:28:32 +0800 Message-Id: <20230827132835.1373581-9-hao.xu@linux.dev> In-Reply-To: <20230827132835.1373581-1-hao.xu@linux.dev> References: <20230827132835.1373581-1-hao.xu@linux.dev> MIME-Version: 1.0 X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230827_063443_605907_90AC20EB X-CRM114-Status: UNSURE ( 8.21 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -0.2 (/) X-Spam-Report: Spam detection software, running on the system "bombadil.infradead.org", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see the administrator of that system for details. Content preview: From: Hao Xu Move file_accessed() to the beginning of iterate_dir() so that we don't need to rollback all the work done when file_accessed() returns -EAGAIN at the end of getdents. Content analysis details: (-0.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-mtd" Errors-To: linux-mtd-bounces+incoming=patchwork.ozlabs.org@lists.infradead.org From: Hao Xu Move file_accessed() to the beginning of iterate_dir() so that we don't need to rollback all the work done when file_accessed() returns -EAGAIN at the end of getdents. Signed-off-by: Hao Xu --- fs/readdir.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/readdir.c b/fs/readdir.c index 2f4c9c663a39..6469f076ba6e 100644 --- a/fs/readdir.c +++ b/fs/readdir.c @@ -61,6 +61,10 @@ int iterate_dir(struct file *file, struct dir_context *ctx) res = -ENOENT; if (!IS_DEADDIR(inode)) { + res = file_accessed(file, ctx->flags & DIR_CONTEXT_F_NOWAIT); + if (res == -EAGAIN) + goto out_unlock; + ctx->pos = file->f_pos; if (shared) res = file->f_op->iterate_shared(file, ctx); @@ -68,8 +72,9 @@ int iterate_dir(struct file *file, struct dir_context *ctx) res = file->f_op->iterate(file, ctx); file->f_pos = ctx->pos; fsnotify_access(file); - file_accessed(file, ctx->flags & DIR_CONTEXT_F_NOWAIT); } + +out_unlock: if (shared) inode_unlock_shared(inode); else