From patchwork Sun Nov 13 16:35:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 13041591 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 36747C4167E for ; Sun, 13 Nov 2022 16:36:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235404AbiKMQgC (ORCPT ); Sun, 13 Nov 2022 11:36:02 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59102 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235392AbiKMQgA (ORCPT ); Sun, 13 Nov 2022 11:36:00 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4315210FE1; Sun, 13 Nov 2022 08:35:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=rczvEohbP4Tuhdub3uBqOVXlkIWc5YOmLPmvA8PuHak=; b=mi1i5xYt2RJoyJDrEBDhZI+XcY a8Cf8kDgenb+pSjOQ0whpICnRG0uph9i16Ml8EV60aZwINhPhEsroDGa6eSGkNZHDAC+BqFND4LJV R/yXCIbc/z5bgxST/jYUBNPmh83FDvn3rEufPr8KXKJQurOVrEqGM7diEbLXQpzM2zRr2fUhCKcVB CoBXdX5M2T/A/IBmgcD2ta5i4AjE/zCEqeG6NxQyJb2lQEHrk74bjgutlpwxa2x4fCHYwIMJdG2qg 9hN75DQ0rOViioGJqAhzT65rDB1G39BT+G1rOCR83F/K1FZbqGxeWtXhmBrdU5sbV6jY7dCp6iv+U lYx9tjxA==; Received: from 213-225-8-167.nat.highway.a1.net ([213.225.8.167] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1ouFxW-00CLT0-00; Sun, 13 Nov 2022 16:35:50 +0000 From: Christoph Hellwig To: Dennis Dalessandro , Mauro Carvalho Chehab , Alexandra Winter , Wenjia Zhang , Marek Szyprowski , Jaroslav Kysela , Takashi Iwai , Russell King , Robin Murphy Cc: linux-arm-kernel@lists.infradead.org, linux-rdma@vger.kernel.org, iommu@lists.linux.dev, linux-media@vger.kernel.org, netdev@vger.kernel.org, linux-s390@vger.kernel.org, alsa-devel@alsa-project.org Subject: [PATCH 2/7] RDMA/hfi1: don't pass bogus GFP_ flags to dma_alloc_coherent Date: Sun, 13 Nov 2022 17:35:30 +0100 Message-Id: <20221113163535.884299-3-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221113163535.884299-1-hch@lst.de> References: <20221113163535.884299-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org dma_alloc_coherent is an opaque allocator that only uses the GFP_ flags for allocation context control. Don't pass GFP_USER which doesn't make sense for a kernel DMA allocation or __GFP_COMP which makes no sense for an allocation that can't in any way be converted to a page pointer. Signed-off-by: Christoph Hellwig Acked-by: Jason Gunthorpe Acked-by: Dean Luick Tested-by: Dean Luick --- drivers/infiniband/hw/hfi1/init.c | 21 +++------------------ 1 file changed, 3 insertions(+), 18 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c index 436372b314312..24c0f0d257fc9 100644 --- a/drivers/infiniband/hw/hfi1/init.c +++ b/drivers/infiniband/hw/hfi1/init.c @@ -1761,17 +1761,11 @@ int hfi1_create_rcvhdrq(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd) unsigned amt; if (!rcd->rcvhdrq) { - gfp_t gfp_flags; - amt = rcvhdrq_size(rcd); - if (rcd->ctxt < dd->first_dyn_alloc_ctxt || rcd->is_vnic) - gfp_flags = GFP_KERNEL; - else - gfp_flags = GFP_USER; rcd->rcvhdrq = dma_alloc_coherent(&dd->pcidev->dev, amt, &rcd->rcvhdrq_dma, - gfp_flags | __GFP_COMP); + GFP_KERNEL); if (!rcd->rcvhdrq) { dd_dev_err(dd, @@ -1785,7 +1779,7 @@ int hfi1_create_rcvhdrq(struct hfi1_devdata *dd, struct hfi1_ctxtdata *rcd) rcd->rcvhdrtail_kvaddr = dma_alloc_coherent(&dd->pcidev->dev, PAGE_SIZE, &rcd->rcvhdrqtailaddr_dma, - gfp_flags); + GFP_KERNEL); if (!rcd->rcvhdrtail_kvaddr) goto bail_free; } @@ -1821,19 +1815,10 @@ int hfi1_setup_eagerbufs(struct hfi1_ctxtdata *rcd) { struct hfi1_devdata *dd = rcd->dd; u32 max_entries, egrtop, alloced_bytes = 0; - gfp_t gfp_flags; u16 order, idx = 0; int ret = 0; u16 round_mtu = roundup_pow_of_two(hfi1_max_mtu); - /* - * GFP_USER, but without GFP_FS, so buffer cache can be - * coalesced (we hope); otherwise, even at order 4, - * heavy filesystem activity makes these fail, and we can - * use compound pages. - */ - gfp_flags = __GFP_RECLAIM | __GFP_IO | __GFP_COMP; - /* * The minimum size of the eager buffers is a groups of MTU-sized * buffers. @@ -1864,7 +1849,7 @@ int hfi1_setup_eagerbufs(struct hfi1_ctxtdata *rcd) dma_alloc_coherent(&dd->pcidev->dev, rcd->egrbufs.rcvtid_size, &rcd->egrbufs.buffers[idx].dma, - gfp_flags); + GFP_KERNEL); if (rcd->egrbufs.buffers[idx].addr) { rcd->egrbufs.buffers[idx].len = rcd->egrbufs.rcvtid_size;