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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 60E75C02188 for ; Fri, 17 Jan 2025 07:45:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=ZbVYkJYrb61Wu580Ft3djKNeSj1im8n+pYtEAikpOC0=; b=jAZvhsjW4ktKb/H/O9EwI+jXY2 NlFjHjEWBAcB5DW8AdtaTLUtMae6pSeW4PhaaZ8wPYb5wwis15Nsb3PFdd3MiVc9WhN/DSNaLtP6R 7nLyKeSTj+kcITYW/2pF268R81d8NfJbZLgh5alB9TJxncse+7SN+vgD13S84YjsgNuUcBIn6lZan +V7qM8K5WQ7LCllquNQkvyTUklPnEMcTeQDm9ipIHpYT1pvy2uKhdmrGBYz+KnntjIhonSzPDlW5b f5NkQ+jYpkCjUsAzPrd96YNqdf2AtIEftVRam+6QHiPSI0KSIWx2tzLFMvJglMjrkS8NypzPVs6tg W7pBBJsw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tYh29-0000000HEDO-3h2C; Fri, 17 Jan 2025 07:44:49 +0000 Received: from 2a02-8389-2341-5b80-41c4-d87f-051e-5808.cable.dynamic.v6.surfer.at ([2a02:8389:2341:5b80:41c4:d87f:51e:5808] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.98 #2 (Red Hat Linux)) id 1tYh25-0000000HEBf-34Fd; Fri, 17 Jan 2025 07:44:46 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Ming Lei , linux-block@vger.kernel.org, nbd@other.debian.org, ceph-devel@vger.kernel.org, virtualization@lists.linux.dev, linux-mtd@lists.infradead.org, linux-nvme@lists.infradead.org, linux-scsi@vger.kernel.org Subject: annotate noio context Date: Fri, 17 Jan 2025 08:44:06 +0100 Message-ID: <20250117074442.256705-1-hch@lst.de> X-Mailer: git-send-email 2.45.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org Hi all, based on the reports from lockdep annotating q_usage_count it became clear that we need to do noio allocations in a lot more place. One is when the block driver calls back into the file system as in the loop driver, the other is anything done while a process has a queue frozen.