From mboxrd@z Thu Jan 1 00:00:00 1970 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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EB517C433FE for ; Fri, 4 Nov 2022 05:40:42 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4N3TxP04J4z3cNG for ; Fri, 4 Nov 2022 16:40:41 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.alibaba.com (client-ip=115.124.30.133; helo=out30-133.freemail.mail.aliyun.com; envelope-from=jefflexu@linux.alibaba.com; receiver=) Received: from out30-133.freemail.mail.aliyun.com (out30-133.freemail.mail.aliyun.com [115.124.30.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4N3TxJ1p3hz3bjX for ; Fri, 4 Nov 2022 16:40:34 +1100 (AEDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R131e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046059;MF=jefflexu@linux.alibaba.com;NM=1;PH=DS;RN=7;SR=0;TI=SMTPD_---0VTve-EV_1667540429; Received: from localhost(mailfrom:jefflexu@linux.alibaba.com fp:SMTPD_---0VTve-EV_1667540429) by smtp.aliyun-inc.com; Fri, 04 Nov 2022 13:40:30 +0800 From: Jingbo Xu To: xiang@kernel.org, chao@kernel.org, huyue2@coolpad.com, linux-erofs@lists.ozlabs.org Subject: [PATCH 1/2] erofs: put metabuf in error path in fscache mode Date: Fri, 4 Nov 2022 13:40:27 +0800 Message-Id: <20221104054028.52208-2-jefflexu@linux.alibaba.com> X-Mailer: git-send-email 2.19.1.6.gb485710b In-Reply-To: <20221104054028.52208-1-jefflexu@linux.alibaba.com> References: <20221104054028.52208-1-jefflexu@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linux-erofs@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Development of Linux EROFS file system List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, yinxin.x@bytedance.com Errors-To: linux-erofs-bounces+linux-erofs=archiver.kernel.org@lists.ozlabs.org Sender: "Linux-erofs" For tail packing layout, put metabuf when error is encountered. Fixes: 1ae9470c3e14 ("erofs: clean up .read_folio() and .readahead() in fscache mode") Signed-off-by: Jingbo Xu --- fs/erofs/fscache.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c index fe05bc51f9f2..83559008bfa8 100644 --- a/fs/erofs/fscache.c +++ b/fs/erofs/fscache.c @@ -287,8 +287,10 @@ static int erofs_fscache_data_read(struct address_space *mapping, return PTR_ERR(src); iov_iter_xarray(&iter, READ, &mapping->i_pages, pos, PAGE_SIZE); - if (copy_to_iter(src + offset, size, &iter) != size) + if (copy_to_iter(src + offset, size, &iter) != size) { + erofs_put_metabuf(&buf); return -EFAULT; + } iov_iter_zero(PAGE_SIZE - size, &iter); erofs_put_metabuf(&buf); return PAGE_SIZE; -- 2.19.1.6.gb485710b