From patchwork Tue Apr 24 18:16:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 10360723 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 B3833601BE for ; Tue, 24 Apr 2018 18:17:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A65E228710 for ; Tue, 24 Apr 2018 18:17:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9AD8C28AC8; Tue, 24 Apr 2018 18:17:11 +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=-7.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI, T_DKIM_INVALID autolearn=unavailable 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 2B8EE28710 for ; Tue, 24 Apr 2018 18:17:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752862AbeDXSQ4 (ORCPT ); Tue, 24 Apr 2018 14:16:56 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:54510 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752583AbeDXSQl (ORCPT ); Tue, 24 Apr 2018 14:16:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=3H6ureYUH3p5r6/APl0HXqLF0wCW7SwbCOdAS2NAqtE=; b=MeeaZPI3nCvlIuZNkzmVyGjbj nTjP04i7ROf6+bF/tlChjB+B13QLrgr7WFKiiNVB5c8dRn6H6k0x8Xx/fOLZcuNjwJKa+61BJ1PyQ Zm3vnKCasaKWfjCk2CD/VtEpm9KwF5TXwFjV0an89bWKDlsBLJuwirKvFBtennXpUxeDqXn0Z901H b/PUFxB8Qz4gC5bIOaWUfzqj5ILOBgLULQCvHlSIZLYh2CoTMjtlHDNVHOYtFuM9U8GWjB0DgLG0I 5r24oUHiSR9MA0gIdyOrYWfBsPdWYnt+njydlFWHD+MmYk3mEhhVmVuMxZWsKBPPXCI/kiz2r4goc cET1qIfPg==; Received: from 213-225-11-78.nat.highway.a1.net ([213.225.11.78] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.90_1 #2 (Red Hat Linux)) id 1fB2UZ-0007uF-G8; Tue, 24 Apr 2018 18:16:40 +0000 From: Christoph Hellwig To: iommu@lists.linux-foundation.org, linux-arch@vger.kernel.org, linux-block@vger.kernel.org, linux-ide@vger.kernel.org, linux-scsi@vger.kernel.org, netdev@vger.kernel.org Cc: "David S. Miller" , linux-kernel@vger.kernel.org Subject: [PATCH 3/5] ide: remove the PCI_DMA_BUS_IS_PHYS check Date: Tue, 24 Apr 2018 20:16:23 +0200 Message-Id: <20180424181625.22410-4-hch@lst.de> X-Mailer: git-send-email 2.17.0 In-Reply-To: <20180424181625.22410-1-hch@lst.de> References: <20180424181625.22410-1-hch@lst.de> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP We now have ways to deal with drainage in the block layer, and libata has been using it for ages. We also want to get rid of PCI_DMA_BUS_IS_PHYS now, so just reduce the PCI transfer size for ide - anyone who cares for performance on PCI controllers should have switched to libata long ago. Signed-off-by: Christoph Hellwig --- drivers/ide/ide-probe.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c index 8d8ed036ca0a..56d7bc228cb3 100644 --- a/drivers/ide/ide-probe.c +++ b/drivers/ide/ide-probe.c @@ -796,8 +796,7 @@ static int ide_init_queue(ide_drive_t *drive) * This will be fixed once we teach pci_map_sg() about our boundary * requirements, hopefully soon. *FIXME* */ - if (!PCI_DMA_BUS_IS_PHYS) - max_sg_entries >>= 1; + max_sg_entries >>= 1; #endif /* CONFIG_PCI */ blk_queue_max_segments(q, max_sg_entries);