From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hao Xu 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> References: <20230827132835.1373581-1-hao.xu@linux.dev> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; 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:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=X5RgYva0uI/YfpMcRAQXXXC0hBNumZORbEO2XQnoCOE=; b=em3yKlbsCGtaTI2NUu5EqW+ED/ Rrl7GlZv/VFYODBSFq3PhGTd9IyFsRmDy2hB66QARsUm4z/byGSzosMdQvOlifzRkTCuERS7UO2VD vc65UEGQ3bmcLWqjh0U6qssO9QqybFDSOheJnKh4XYSfyiRhmooi0vI2WiDwNTQQ+jkc=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; 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:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=X5RgYva0uI/YfpMcRAQXXXC0hBNumZORbEO2XQnoCOE=; b=m6JI+4LIeWxqtnKAK9cUIq3DQC DIEnnI6nTlyHvE5jWjknnTiXnikIBjG2y46kkDeGMdo2XVBMEWcYmm4nqJ/xoJRPVsDBfylmx2hJF Cwp0XEEQftRWfyE2coSKh+C102giTMKEpP6w3O4yICOD1egeI5yiKP25VGDMZSbW9l+g=; 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= In-Reply-To: <20230827132835.1373581-1-hao.xu@linux.dev> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: io-uring@vger.kernel.org, Jens Axboe Cc: Wanpeng Li , "Darrick J . Wong" , Dominique Martinet , Dave Chinner , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Stefan Roesch , Clay Harris , linux-s390@vger.kernel.org, linux-nilfs@vger.kernel.org, codalist@coda.cs.cmu.edu, cluster-devel@redhat.com, linux-cachefs@redhat.com, linux-ext4@vger.kernel.org, devel@lists.orangefs.org, linux-cifs@vger.kernel.org, ecryptfs@vger.kernel.org, linux-nfs@vger.kernel.org, linux-block@vger.kernel.org, Alexander Viro , Christian Brauner , netdev@vger.kernel.org, samba-technical@lists.samba.org, linux-unionfs@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mtd@lists.infradead.org, bpf@vger.kernel.o 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 -- 2.25.1