From patchwork Tue May 29 22:17:26 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jens Axboe X-Patchwork-Id: 10437257 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 7ABB8601E9 for ; Tue, 29 May 2018 22:18:02 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5E553285AF for ; Tue, 29 May 2018 22:18:02 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 52B6F286B7; Tue, 29 May 2018 22:18:02 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E45D7285AF for ; Tue, 29 May 2018 22:18:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030236AbeE2WSA (ORCPT ); Tue, 29 May 2018 18:18:00 -0400 Received: from mail-pg0-f65.google.com ([74.125.83.65]:42794 "EHLO mail-pg0-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S968068AbeE2WRl (ORCPT ); Tue, 29 May 2018 18:17:41 -0400 Received: by mail-pg0-f65.google.com with SMTP id p9-v6so7180725pgc.9 for ; Tue, 29 May 2018 15:17:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=CZHlQKCNwHTZ9BT+Kho4dNcDC8He8b/wkrZ93v1us+0=; b=CC+z+gIhSHzhE23pwzVN/buLpAEwpYSYSxQGzoKgPJPVK8uXIxphMUJH4nIdkffUjl Ywbio5sd8A460/K9IP57yDZb5xHd3brd6xq2XDjraAt3KZtR6gAXdf+plwFcYyXF+gTL GgYQLMkB5mM6CN9+6lPwOn303v4he04V0q1fO03/UG1ueQKVH2FeDLvkPi/7l1cKezW6 0zwW+fsbFXZca4OaA8u6eXsvbIpdjTMUTZqbE1Ltv5ilv1OWH4Q+dm6qPU3GuuVqgiwU tK9vsRmaDvPCVSEdIc9GUQrinU4CCVdP6IrtSD2jwvfXHkJn31EPTVdE+3iBjSmy5S7X nyLw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=CZHlQKCNwHTZ9BT+Kho4dNcDC8He8b/wkrZ93v1us+0=; b=StN5gQ1+0dFNg1KEmnf3hCFUpk4W71XMr6L6kOxiIsvuBFPce8q3Wb7ybWLr9Mtznb uzpse3aDRQhLfGATuog1P11FFDOhcGAfG/5hPGms3JsbifTgeYkA6lgw6Yai7Xi5yokx v/vfIb6hdNyTisMmsmI/wIdsSlMjEWXaI6KrmZvnCJFUXYBrw9BWbSlaoPlMrBNvsLqe yMlaYzjWx3brqhVBpqt6TOuEWEeO4pJSzrSyPgiAkIi5wIREuMnCEQajoGe6hgOP1wOr kDWOOHru/ffUsl3TjXmwW/G20d2jSdF7T/vOFs4S2LyJN/dE22l+RlhU75TdcObPPLPi RZtg== X-Gm-Message-State: ALKqPwdJIxNPwdvntYmYhyj4i/Uw7cZnXAUj9VzhHZAz7w/3RNmTx1mp FtoCj5XCjk6FYiYzfh8DYJfYVN+X/Qc= X-Google-Smtp-Source: ADUXVKKFpagHJCLnFdDNkw5UcyBatmDJCvF34fRPyyXbNmrh1CwAt8LPMj7a2uelzMlcr0DWv+0l/g== X-Received: by 2002:a62:a50c:: with SMTP id v12-v6mr182350pfm.237.1527632260616; Tue, 29 May 2018 15:17:40 -0700 (PDT) Received: from localhost.localdomain ([2600:380:b479:89b:ec6c:3bb0:6daf:b8e]) by smtp.gmail.com with ESMTPSA id o84-v6sm78769548pfi.27.2018.05.29.15.17.38 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Tue, 29 May 2018 15:17:39 -0700 (PDT) From: Jens Axboe To: linux-fsdevel@vger.kernel.org Cc: viro@zeniv.linux.org.uk, akpm@linux-foundation.org, Jens Axboe Subject: [PATCH 3/4] btrfs: readpages() should submit IO as read-ahead Date: Tue, 29 May 2018 16:17:26 -0600 Message-Id: <1527632247-23350-4-git-send-email-axboe@kernel.dk> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1527632247-23350-1-git-send-email-axboe@kernel.dk> References: <1527632247-23350-1-git-send-email-axboe@kernel.dk> Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP a_ops->readpages() is only ever used for read-ahead. Ensure that we pass this information down to the block layer. Signed-off-by: Jens Axboe --- fs/btrfs/extent_io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index e99b329002cf..32034bc1e2b9 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3119,7 +3119,7 @@ static inline void __do_contiguous_readpages(struct extent_io_tree *tree, for (index = 0; index < nr_pages; index++) { __do_readpage(tree, pages[index], btrfs_get_extent, em_cached, - bio, 0, bio_flags, 0, prev_em_start); + bio, 0, bio_flags, REQ_RAHEAD, prev_em_start); put_page(pages[index]); } }