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 7AAAAC433EF for ; Tue, 18 Jan 2022 13:13:29 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4JdTjh1Sn4z3bV4 for ; Wed, 19 Jan 2022 00:13:28 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.alibaba.com (client-ip=115.124.30.44; helo=out30-44.freemail.mail.aliyun.com; envelope-from=jefflexu@linux.alibaba.com; receiver=) Received: from out30-44.freemail.mail.aliyun.com (out30-44.freemail.mail.aliyun.com [115.124.30.44]) (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 4JdThw6VQcz30MF for ; Wed, 19 Jan 2022 00:12:48 +1100 (AEDT) X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R321e4; CH=green; DM=||false|; DS=||; FP=0|-1|-1|-1|0|-1|-1|-1; HT=e01e04423; MF=jefflexu@linux.alibaba.com; NM=1; PH=DS; RN=12; SR=0; TI=SMTPD_---0V2C5Co8_1642511547; Received: from localhost(mailfrom:jefflexu@linux.alibaba.com fp:SMTPD_---0V2C5Co8_1642511547) by smtp.aliyun-inc.com(127.0.0.1); Tue, 18 Jan 2022 21:12:28 +0800 From: Jeffle Xu To: dhowells@redhat.com, linux-cachefs@redhat.com, xiang@kernel.org, chao@kernel.org, linux-erofs@lists.ozlabs.org Subject: [PATCH v2 09/20] erofs: add mode checking helper Date: Tue, 18 Jan 2022 21:12:05 +0800 Message-Id: <20220118131216.85338-10-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 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, joseph.qi@linux.alibaba.com, linux-fsdevel@vger.kernel.org, gerry@linux.alibaba.com Errors-To: linux-erofs-bounces+linux-erofs=archiver.kernel.org@lists.ozlabs.org Sender: "Linux-erofs" Until then erofs is exactly blockdev based filesystem. In other using scenarios (e.g. container image), erofs needs to run upon files. This patch set is going to introduces a new nodev mode, in which erofs could be mounted from a bootstrap blob file containing complete erofs image. Add a helper checking which mode erofs works in. Signed-off-by: Jeffle Xu --- fs/erofs/internal.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index f9f94d63d40f..2b9337d385ce 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -161,6 +161,11 @@ struct erofs_sb_info { #define set_opt(opt, option) ((opt)->mount_opt |= EROFS_MOUNT_##option) #define test_opt(opt, option) ((opt)->mount_opt & EROFS_MOUNT_##option) +static inline bool erofs_bdev_mode(struct super_block *sb) +{ + return sb->s_bdev; +} + enum { EROFS_ZIP_CACHE_DISABLED, EROFS_ZIP_CACHE_READAHEAD, -- 2.27.0 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 54E92C4332F for ; Tue, 18 Jan 2022 13:13:30 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242956AbiARNN2 (ORCPT ); Tue, 18 Jan 2022 08:13:28 -0500 Received: from out30-44.freemail.mail.aliyun.com ([115.124.30.44]:34029 "EHLO out30-44.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242134AbiARNMa (ORCPT ); Tue, 18 Jan 2022 08:12:30 -0500 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R321e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04423;MF=jefflexu@linux.alibaba.com;NM=1;PH=DS;RN=12;SR=0;TI=SMTPD_---0V2C5Co8_1642511547; Received: from localhost(mailfrom:jefflexu@linux.alibaba.com fp:SMTPD_---0V2C5Co8_1642511547) by smtp.aliyun-inc.com(127.0.0.1); Tue, 18 Jan 2022 21:12:28 +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 09/20] erofs: add mode checking helper Date: Tue, 18 Jan 2022 21:12:05 +0800 Message-Id: <20220118131216.85338-10-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-fsdevel@vger.kernel.org Until then erofs is exactly blockdev based filesystem. In other using scenarios (e.g. container image), erofs needs to run upon files. This patch set is going to introduces a new nodev mode, in which erofs could be mounted from a bootstrap blob file containing complete erofs image. Add a helper checking which mode erofs works in. Signed-off-by: Jeffle Xu --- fs/erofs/internal.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index f9f94d63d40f..2b9337d385ce 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -161,6 +161,11 @@ struct erofs_sb_info { #define set_opt(opt, option) ((opt)->mount_opt |= EROFS_MOUNT_##option) #define test_opt(opt, option) ((opt)->mount_opt & EROFS_MOUNT_##option) +static inline bool erofs_bdev_mode(struct super_block *sb) +{ + return sb->s_bdev; +} + enum { EROFS_ZIP_CACHE_DISABLED, EROFS_ZIP_CACHE_READAHEAD, -- 2.27.0