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 8A7ACC27C76 for ; Sat, 21 Jan 2023 01:40:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229526AbjAUBkh (ORCPT ); Fri, 20 Jan 2023 20:40:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39434 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229379AbjAUBkh (ORCPT ); Fri, 20 Jan 2023 20:40:37 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B09D87E4A7 for ; Fri, 20 Jan 2023 17:39:49 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1674265188; 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=xeD0SNKxvhzd7nHEdrLKl1kCKQQdc6SzbvnR0DU/uAA=; b=A/YOSLexIhBPuFtxxHPIjlOJXjQdNkLkwhwZ3GpWPOE1Z3ygJmnu6k/PKXNRTD0IvzRmVq R4vSFU2cPAuyun6O7+KRUidFPJ33BgJH2xJRX7dUM0a3Z001ZdWSzFAl9Va5UQWfzb/9Y/ kAw94AppEqFlzCFjqKQrKIgkVFkWAUg= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-22-F1pDMeAePe2l2vanL-TFtQ-1; Fri, 20 Jan 2023 20:39:47 -0500 X-MC-Unique: F1pDMeAePe2l2vanL-TFtQ-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 6EE9485CCE1; Sat, 21 Jan 2023 01:39:47 +0000 (UTC) Received: from localhost.localdomain (ovpn-13-10.pek2.redhat.com [10.72.13.10]) by smtp.corp.redhat.com (Postfix) with ESMTP id 827ED2166B2A; Sat, 21 Jan 2023 01:39:44 +0000 (UTC) From: Xiao Ni To: song@kernel.org Cc: linux-raid@vger.kernel.org, ming.lei@redhat.com, ncroxon@redhat.com, heinzm@redhat.com Subject: [PATCH 1/2] md: Factor out is_md_suspended helper Date: Sat, 21 Jan 2023 09:39:36 +0800 Message-Id: <20230121013937.97576-2-xni@redhat.com> In-Reply-To: <20230121013937.97576-1-xni@redhat.com> References: <20230121013937.97576-1-xni@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Precedence: bulk List-ID: X-Mailing-List: linux-raid@vger.kernel.org This helper function will be used in next patch. It's easy for understanding. Signed-off-by: Xiao Ni --- drivers/md/md.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 775f1dde190a..d3627aad981a 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -380,6 +380,13 @@ EXPORT_SYMBOL_GPL(md_new_event); static LIST_HEAD(all_mddevs); static DEFINE_SPINLOCK(all_mddevs_lock); +static bool is_md_suspended(struct mddev *mddev) +{ + if (mddev->suspended) + return true; + else + return false; +} /* Rather than calling directly into the personality make_request function, * IO requests come here first so that we can check if the device is * being suspended pending a reconfiguration. @@ -389,7 +396,7 @@ static DEFINE_SPINLOCK(all_mddevs_lock); */ static bool is_suspended(struct mddev *mddev, struct bio *bio) { - if (mddev->suspended) + if (is_md_suspended(mddev)) return true; if (bio_data_dir(bio) != WRITE) return false; @@ -434,7 +441,7 @@ void md_handle_request(struct mddev *mddev, struct bio *bio) goto check_suspended; } - if (atomic_dec_and_test(&mddev->active_io) && mddev->suspended) + if (atomic_dec_and_test(&mddev->active_io) && is_md_suspended(mddev)) wake_up(&mddev->sb_wait); } EXPORT_SYMBOL(md_handle_request); @@ -6217,7 +6224,7 @@ EXPORT_SYMBOL_GPL(md_stop_writes); static void mddev_detach(struct mddev *mddev) { md_bitmap_wait_behind_writes(mddev); - if (mddev->pers && mddev->pers->quiesce && !mddev->suspended) { + if (mddev->pers && mddev->pers->quiesce && !is_md_suspended(mddev)) { mddev->pers->quiesce(mddev, 1); mddev->pers->quiesce(mddev, 0); } @@ -8529,7 +8536,7 @@ bool md_write_start(struct mddev *mddev, struct bio *bi) return true; wait_event(mddev->sb_wait, !test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags) || - mddev->suspended); + is_md_suspended(mddev)); if (test_bit(MD_SB_CHANGE_PENDING, &mddev->sb_flags)) { percpu_ref_put(&mddev->writes_pending); return false; @@ -9257,7 +9264,7 @@ void md_check_recovery(struct mddev *mddev) wake_up(&mddev->sb_wait); } - if (mddev->suspended) + if (is_md_suspended(mddev)) return; if (mddev->bitmap) -- 2.32.0 (Apple Git-132)