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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80272C433F5 for ; Tue, 18 Jan 2022 13:13:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243641AbiARNNR (ORCPT ); Tue, 18 Jan 2022 08:13:17 -0500 Received: from out30-54.freemail.mail.aliyun.com ([115.124.30.54]:56252 "EHLO out30-54.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242680AbiARNMp (ORCPT ); Tue, 18 Jan 2022 08:12:45 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R191e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04407;MF=jefflexu@linux.alibaba.com;NM=1;PH=DS;RN=12;SR=0;TI=SMTPD_---0V2C2ayE_1642511560; Received: from localhost(mailfrom:jefflexu@linux.alibaba.com fp:SMTPD_---0V2C2ayE_1642511560) by smtp.aliyun-inc.com(127.0.0.1); Tue, 18 Jan 2022 21:12:41 +0800 From: Jeffle Xu To: dhowells@redhat.com, linux-cachefs@redhat.com, xiang@kernel.org, chao@kernel.org, linux-erofs@lists.ozlabs.org Cc: linux-fsdevel@vger.kernel.org, joseph.qi@linux.alibaba.com, bo.liu@linux.alibaba.com, tao.peng@linux.alibaba.com, gerry@linux.alibaba.com, eguan@linux.alibaba.com, linux-kernel@vger.kernel.org Subject: [PATCH v2 20/20] erofs: support on-demand reading Date: Tue, 18 Jan 2022 21:12:16 +0800 Message-Id: <20220118131216.85338-21-jefflexu@linux.alibaba.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220118131216.85338-1-jefflexu@linux.alibaba.com> References: <20220118131216.85338-1-jefflexu@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Implement the .issue_op() callback, and all work is done by netfs_ondemand_read(). Signed-off-by: Jeffle Xu --- fs/erofs/fscache.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/fs/erofs/fscache.c b/fs/erofs/fscache.c index e8df35ee4ba8..9ba668c42098 100644 --- a/fs/erofs/fscache.c +++ b/fs/erofs/fscache.c @@ -28,9 +28,15 @@ static void erofs_noop_cleanup(struct address_space *mapping, void *netfs_priv) { } +static void erofs_issue_op(struct netfs_read_subrequest *subreq) +{ + netfs_ondemand_read(subreq); +} + static const struct netfs_read_request_ops erofs_blob_req_ops = { .begin_cache_operation = erofs_blob_begin_cache_operation, .cleanup = erofs_noop_cleanup, + .issue_op = erofs_issue_op, }; static int erofs_begin_cache_operation(struct netfs_read_request *rreq) @@ -58,6 +64,7 @@ static const struct netfs_read_request_ops erofs_req_ops = { .begin_cache_operation = erofs_begin_cache_operation, .cleanup = erofs_noop_cleanup, .clamp_length = erofs_clamp_length, + .issue_op = erofs_issue_op, }; static int erofs_fscache_blob_readpage(struct file *data, struct page *page) -- 2.27.0