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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B4B7CC433EF for ; Wed, 17 Nov 2021 11:43:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 94D8961221 for ; Wed, 17 Nov 2021 11:43:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236910AbhKQLqo (ORCPT ); Wed, 17 Nov 2021 06:46:44 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46950 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235473AbhKQLqn (ORCPT ); Wed, 17 Nov 2021 06:46:43 -0500 Received: from mail-pg1-x529.google.com (mail-pg1-x529.google.com [IPv6:2607:f8b0:4864:20::529]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 86E05C061746 for ; Wed, 17 Nov 2021 03:43:45 -0800 (PST) Received: by mail-pg1-x529.google.com with SMTP id 28so1994598pgq.8 for ; Wed, 17 Nov 2021 03:43:45 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=tSiNYAfrwC6aXcWj4FsC+gepRV/DukgxF28JUpxZyAc=; b=AmtVK3x4VL/s1O1CkkVDVVmGkBx+Yg2THamoc9AkDd9NdvHLuGFcvCPueMhDGaRlBT RVc7tg8eFQlAUGx8pG2B7CrHEpjdx8yZ5UKf0VBFGFwFG4eNOwB+tXgt/8weHbulTzD0 wKJElBf+qDCq5fVrbuJ/ItzoI4W9w6hdkyG1p9I2Y79JENB3BW9B425KLRB9mxXNT/tP Qx+ORnd5e5L+3yf5+u6KYusFCWlD3Bj/uvFJZlKmySHHUscPu76KVz+KAVl08AgJkIsh mbiwhyLGz4DfHGuOrk9DJ6yZB1bze6xYXHUwfeNx4mQlKOe0W+pEYbbPPVXh0qOWxh+d xG5Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=tSiNYAfrwC6aXcWj4FsC+gepRV/DukgxF28JUpxZyAc=; b=R+0F9oKTSqRVqY6pm27iAGFqSckeqAiuhda+9HwCwnuwcjjcRClDZrsxioyKLQAl7S 9aTL2JhCC9kwsANjwgHU7TQlUVpFPzfu9pOP1ddhypo6x7oKNAYh4RZh6oOBHKGuJEFd xb4zU0FEw7BGfR3HIFYRTr7u2uCXTpPe8qsSEZuKqGXaEs3hmVIdVpvPUXn0sb81ry5D rExt00+/fvwL7GS0Htm0/qWR4+/d6VyPujQeJIswjPnT9GDOoGI2kp8bnQpVtaiomnsX Qt7LFPFB8hoxtgoqSmIQ5QLjTpvMr8EqwJA1WzPfGbhW4OXQlBLBqGndyJojTT8lmuw9 HMnA== X-Gm-Message-State: AOAM5318Roh3BMKe4+0R8RpzoMa/fUzWOwO+uiyf3rxkTqq5YW01OXGb DNmCxGQ4FpggniB+sij385ZDwW9uGPoT7Q== X-Google-Smtp-Source: ABdhPJytnBk6HAadXIg91k2YAuS50If7tkag3Qx1x7euh5JYXUj7vg/7E8pqI+FFHPoyIBooRtnkVQ== X-Received: by 2002:a05:6a00:234a:b0:49f:c0f7:f474 with SMTP id j10-20020a056a00234a00b0049fc0f7f474mr6546890pfj.64.1637149425131; Wed, 17 Nov 2021 03:43:45 -0800 (PST) Received: from FLYINGPENG-MB0.tencent.com ([103.7.29.30]) by smtp.gmail.com with ESMTPSA id hg4sm5110582pjb.1.2021.11.17.03.43.43 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 17 Nov 2021 03:43:44 -0800 (PST) From: Peng Hao X-Google-Original-From: Peng Hao To: miklos@szeredi.hu Cc: linux-fsdevel@vger.kernel.org Subject: [PATCH] fuse: disable some features for readonly mount Date: Wed, 17 Nov 2021 19:43:12 +0800 Message-Id: <20211117114312.36445-1-flyingpeng@tencent.com> X-Mailer: git-send-email 2.30.1 (Apple Git-130) MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org auto_inval_data and parallel_dirops features are not necessary for read-only mount. Signed-off-by: Peng Hao --- fs/fuse/inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 36cd03114b6d..de9e15091715 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -1109,7 +1109,7 @@ static void process_init_reply(struct fuse_mount *fm, struct fuse_args *args, if (arg->flags & FUSE_DONT_MASK) fc->dont_mask = 1; if (arg->flags & FUSE_AUTO_INVAL_DATA) - fc->auto_inval_data = 1; + fc->auto_inval_data = sb_rdonly(fm->sb) ? 0 : 1; else if (arg->flags & FUSE_EXPLICIT_INVAL_DATA) fc->explicit_inval_data = 1; if (arg->flags & FUSE_DO_READDIRPLUS) { @@ -1122,7 +1122,7 @@ static void process_init_reply(struct fuse_mount *fm, struct fuse_args *args, if (arg->flags & FUSE_WRITEBACK_CACHE) fc->writeback_cache = 1; if (arg->flags & FUSE_PARALLEL_DIROPS) - fc->parallel_dirops = 1; + fc->parallel_dirops = sb_rdonly(fm->sb) ? 0 : 1; if (arg->flags & FUSE_HANDLE_KILLPRIV) fc->handle_killpriv = 1; if (arg->time_gran && arg->time_gran <= 1000000000) -- 2.27.0