From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 77E0436F418; Wed, 20 May 2026 16:26:24 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779294386; cv=none; b=coSC/d29CKr9bgOgls6zV21kEgxD91MKqEJFrj435wg9nka05eIAN+pJKetHbUqkeI1+oD45oxgFtu6vKrV8Nb5mIkm4M75CZyGHgaeKxNBu0thaMDwu8F6ZIE/DLr6GkQ/PK5Sq7ZcqUpmzaN3n+wm5q23Rzw+sI+6bKEyQpm0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779294386; c=relaxed/simple; bh=LwHK8fIEGuozMCKNUz6nu5xqngMCfPnZlcEZbnq3OKY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CW3ZYwVq7NKG1XfkBMEWoWXT4q63IszBXbxQoGI8OW7p4/Vjjs74+Y9IfRYVeB68R7dDx/PHPWHKiopKaSlAANNsEV45ZuVjDAKCYlZtGw7rSCCh8YmVuW9Piy+WfsKfDNLHOKoxYSJPTG9XbUSLCuLSydtL6iMuuyL1b1Z4aJM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=JPOS226z; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="JPOS226z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D1CE41F00893; Wed, 20 May 2026 16:26:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1779294384; bh=soBNOMBJqhTq3+7ATVyXyanyUW2w66gxgspM+8fReHQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=JPOS226z8lICpf17PoEQ8ACfuZFxR2KETbGgJI/0rcvaAj/iI3EcV7AG0crmKLHKP HVQmBhKcPbW7LtDbuS3c9qlxwiLu/MOZNszHkv33UvFZ677e0UGnJfCpNSP2GgvCY4 W58hzDFiE5eiWFGhErXUfQrT1J8bGU4LPq3kcNUQ= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Tj , Chen Cheng , Paul Menzel , Yu Kuai , Sasha Levin Subject: [PATCH 7.0 0002/1146] md: suppress spurious superblock update error message for dm-raid Date: Wed, 20 May 2026 18:04:12 +0200 Message-ID: <20260520162148.451131860@linuxfoundation.org> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260520162148.390695140@linuxfoundation.org> References: <20260520162148.390695140@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 7.0-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chen Cheng [ Upstream commit eff0d74c6c8fd358bc9474c05002e51fa5aa56ad ] dm-raid has external metadata management (mddev->external = 1) and no persistent superblock (mddev->persistent = 0). For these arrays, there's no superblock to update, so the error message is spurious. The error appears as: md_update_sb: can't update sb for read-only array md0 Fixes: 8c9e376b9d1a ("md: warn about updating super block failure") Reported-by: Tj Closes: https://lore.kernel.org/all/20260128082430.96788-1-tj.iam.tj@proton.me/ Signed-off-by: Chen Cheng Reviewed-by: Paul Menzel Link: https://lore.kernel.org/linux-raid/20260210133847.269986-1-chencheng@fnnas.com Signed-off-by: Yu Kuai Signed-off-by: Sasha Levin --- drivers/md/md.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 3ce6f9e9d38e6..c2cc2302d727d 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -2788,7 +2788,9 @@ void md_update_sb(struct mddev *mddev, int force_change) if (!md_is_rdwr(mddev)) { if (force_change) set_bit(MD_SB_CHANGE_DEVS, &mddev->sb_flags); - pr_err("%s: can't update sb for read-only array %s\n", __func__, mdname(mddev)); + if (!mddev_is_dm(mddev)) + pr_err_ratelimited("%s: can't update sb for read-only array %s\n", + __func__, mdname(mddev)); return; } -- 2.53.0