From patchwork Mon Sep 21 08:07:25 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 11788885 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B161C618 for ; Mon, 21 Sep 2020 08:09:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 958382151B for ; Mon, 21 Sep 2020 08:09:43 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="e4VccTgJ" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726942AbgIUIJk (ORCPT ); Mon, 21 Sep 2020 04:09:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38540 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726326AbgIUIHz (ORCPT ); Mon, 21 Sep 2020 04:07:55 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 9D10EC0613CF; Mon, 21 Sep 2020 01:07:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=0OOdgaAy3T3TNy//04c+F/LGQuoAdpgJ6oUz9lUQkEY=; b=e4VccTgJdsmgociGEt21mGtHzd j/wvJ+RKs2rthlH7WbxjsU3UE3YworJ72pCUYBShrtvn78245jQHUBPW5VY/yclvncAGnaR1CDFyB 5YoUDtHn/bM3Ija7U1Rn30aCukN1F28OsBlCk9p7r07WRJhxLkyaE9OqS16u/V6bGi5Ft+2lIzHem QnW3s68Lbh4TWGJliPqo6mN0zRJjEUxU8ZwB8+5fDPYSo2YWLMxmCt231I+dw1ngD9wpqbgEg1O8q zXYulN81iweBnS8GzCrg1zUL6XtbpqXW0Bob/ov2w3dmM5WSAbHxw9GfqozABq6wA45T7JSsJDq3H 9Bxczeag==; Received: from p4fdb0c34.dip0.t-ipconnect.de ([79.219.12.52] helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1kKGrH-0006Wl-Rc; Mon, 21 Sep 2020 08:07:36 +0000 From: Christoph Hellwig To: Jens Axboe Cc: Song Liu , Hans de Goede , Coly Li , Richard Weinberger , Minchan Kim , Johannes Thumshirn , Justin Sanders , linux-mtd@lists.infradead.org, dm-devel@redhat.com, linux-block@vger.kernel.org, linux-bcache@vger.kernel.org, linux-kernel@vger.kernel.org, drbd-dev@lists.linbit.com, linux-raid@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, cgroups@vger.kernel.org Subject: [PATCH 04/13] aoe: set an optimal I/O size Date: Mon, 21 Sep 2020 10:07:25 +0200 Message-Id: <20200921080734.452759-5-hch@lst.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200921080734.452759-1-hch@lst.de> References: <20200921080734.452759-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org aoe forces a larger readahead size, but any reason to do larger I/O is not limited to readahead. Also set the optimal I/O size, and remove the local constants in favor of just using SZ_2G. Signed-off-by: Christoph Hellwig Reviewed-by: Jan Kara --- drivers/block/aoe/aoeblk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index 5ca7216e9e01f3..d8cfc233e64b93 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -347,7 +347,6 @@ aoeblk_gdalloc(void *vp) mempool_t *mp; struct request_queue *q; struct blk_mq_tag_set *set; - enum { KB = 1024, MB = KB * KB, READ_AHEAD = 2 * MB, }; ulong flags; int late = 0; int err; @@ -407,7 +406,8 @@ aoeblk_gdalloc(void *vp) WARN_ON(d->gd); WARN_ON(d->flags & DEVFL_UP); blk_queue_max_hw_sectors(q, BLK_DEF_MAX_SECTORS); - q->backing_dev_info->ra_pages = READ_AHEAD / PAGE_SIZE; + q->backing_dev_info->ra_pages = SZ_2M / PAGE_SIZE; + blk_queue_io_opt(q, SZ_2M); d->bufpool = mp; d->blkq = gd->queue = q; q->queuedata = d;