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 X-Spam-Level: X-Spam-Status: No, score=-2.9 required=3.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 888DAC46464 for ; Thu, 9 Aug 2018 18:06:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4494C21F45 for ; Thu, 9 Aug 2018 18:06:06 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="gPQIoQ4l" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4494C21F45 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=elisp.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727320AbeHIUcC (ORCPT ); Thu, 9 Aug 2018 16:32:02 -0400 Received: from mail-pf1-f196.google.com ([209.85.210.196]:38890 "EHLO mail-pf1-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726944AbeHIUcB (ORCPT ); Thu, 9 Aug 2018 16:32:01 -0400 Received: by mail-pf1-f196.google.com with SMTP id x17-v6so3213653pfh.5; Thu, 09 Aug 2018 11:06:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=sender:from:to:cc:subject:date:message-id:in-reply-to:references; bh=RFAEmNnOCZ/Kp9MrXLAGDUXGdn+QYEpwfWj/EYZS03E=; b=gPQIoQ4lIVOzADQ7cuVb38GRq3XQ+5Nc/eTdm73tvxZJfcYlpN7o5miXBIiYV9ORT2 gaApJ1K5rwvwvJ7hccpRkvs0ThWcFLBdXnvsGToK/9CrC/ixiCIxhLaqCk8hOhg16/mv QvGbtK4hH3XGQJkEvCCLEeEgoIrMFSwobVzeM2Jrv5vFw/su7j5k7sZbx9VckCoHtjWC CExZQS5S0sJ3J3HHRUxVC+d7kNRDACZ2WYBvZyFZdcsy9pEcfyt64Dvqq/vFeaMVS9/w +lBTxo2sNeRlkw/CXix7e3EUbXTY9TumftHuLr1aGDTMepERkBqRza4m0HqsVhVVFUyL o3Sg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:from:to:cc:subject:date:message-id :in-reply-to:references; bh=RFAEmNnOCZ/Kp9MrXLAGDUXGdn+QYEpwfWj/EYZS03E=; b=PrvXXmXo9IQoXiQjoCXZyy6HqejQxPVbrilnjywrgEdzH5fxKc7sw9bpkPgQvjjcB0 FvFdhYMvLgHuNrgPyd8kBn5tgTklFweokWjRQvrOWgPYHNQrcENgnCOIfjp+D1jnTEyq Mda4msKng6qcEvcdpgfmsVTlPBzKAXUGRc1lMvAMuKhtvW9IVvzwCyxXBxZotwodx0CB 7vgDO73ypnLLjRNjg8go5eV9DSpY836WLL1+x/jKhVJhYzJ/e1w0PXuny6IHd4pfYEjA /U2uliMN49n47h2Vd1nz20nEuPQ4+KBevfphwyDtHorLJ/zmvFA2BvkGmgCyyPa6MnE9 7B5Q== X-Gm-Message-State: AOUpUlHgdylyy49ISPLAtRXX30bhrwHbA+x+sKSDWYp/T63pF8G3TwKz hLfBVzSc5vNGSi/mVlE+pZQ= X-Google-Smtp-Source: AA+uWPytyB9LSwNkRVph7qMwaie9wNtbDldRK1eR2hKOUeDao4hr2ETfzuwvY6kDTbBLQ1KP8xIQYw== X-Received: by 2002:a62:ccd0:: with SMTP id j77-v6mr3437875pfk.22.1533837962594; Thu, 09 Aug 2018 11:06:02 -0700 (PDT) Received: from localhost (h101-111-148-072.catv02.itscom.jp. [101.111.148.72]) by smtp.gmail.com with ESMTPSA id n9-v6sm13285315pfg.21.2018.08.09.11.06.01 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 09 Aug 2018 11:06:01 -0700 (PDT) From: Naohiro Aota To: David Sterba , linux-btrfs@vger.kernel.org Cc: Chris Mason , Josef Bacik , linux-kernel@vger.kernel.org, Hannes Reinecke , Damien Le Moal , Bart Van Assche , Matias Bjorling , Naohiro Aota Subject: [RFC PATCH 06/17] btrfs: disable direct IO in HMZONED mode Date: Fri, 10 Aug 2018 03:04:39 +0900 Message-Id: <20180809180450.5091-7-naota@elisp.net> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20180809180450.5091-1-naota@elisp.net> References: <20180809180450.5091-1-naota@elisp.net> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Direct write I/Os can be directed at existing extents that have already been written. Such write requests are prohibited on host-managed zoned block devices. So disable direct IO support for a volume with HMZONED mode enabled. Signed-off-by: Naohiro Aota --- fs/btrfs/inode.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 212fa71317d6..05f5e05ccf37 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -8523,6 +8523,9 @@ static ssize_t check_direct_IO(struct btrfs_fs_info *fs_info, unsigned int blocksize_mask = fs_info->sectorsize - 1; ssize_t retval = -EINVAL; + if (btrfs_fs_incompat(fs_info, HMZONED)) + goto out; + if (offset & blocksize_mask) goto out; -- 2.18.0