All of lore.kernel.org
 help / color / mirror / Atom feed
From: Huaisheng Ye <yehs2007@gmail.com>
To: akpm@linux-foundation.org, linux-mm@kvack.org
Cc: mhocko@suse.com, willy@infradead.org, vbabka@suse.cz,
	mgorman@techsingularity.net, kstewart@linuxfoundation.org,
	alexander.levin@verizon.com, gregkh@linuxfoundation.org,
	colyli@suse.de, chengnt@lenovo.com, hehy1@lenovo.com,
	linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
	xen-devel@lists.xenproject.org, linux-btrfs@vger.kernel.org,
	Huaisheng Ye <yehs1@lenovo.com>, Joerg Roedel <joro@8bytes.org>
Subject: [RFC PATCH v2 04/12] drivers/iommu/amd_iommu: update usage of address zone modifiers
Date: Mon, 21 May 2018 23:20:25 +0800	[thread overview]
Message-ID: <1526916033-4877-5-git-send-email-yehs2007@gmail.com> (raw)
In-Reply-To: <1526916033-4877-1-git-send-email-yehs2007@gmail.com>

From: Huaisheng Ye <yehs1@lenovo.com>

Use __GFP_ZONE_MASK to replace (__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32).

___GFP_DMA, ___GFP_HIGHMEM and ___GFP_DMA32 have been deleted from GFP
bitmasks, the bottom three bits of GFP mask is reserved for storing
encoded zone number.
__GFP_DMA, __GFP_HIGHMEM and __GFP_DMA32 should not be operated by OR.

Signed-off-by: Huaisheng Ye <yehs1@lenovo.com>
Cc: Joerg Roedel <joro@8bytes.org>
---
 drivers/iommu/amd_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 74788fd..3921d53 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2614,7 +2614,7 @@ static void *alloc_coherent(struct device *dev, size_t size,
 	dma_dom   = to_dma_ops_domain(domain);
 	size	  = PAGE_ALIGN(size);
 	dma_mask  = dev->coherent_dma_mask;
-	flag     &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
+	flag     &= ~__GFP_ZONE_MASK;
 	flag     |= __GFP_ZERO;
 
 	page = alloc_pages(flag | __GFP_NOWARN,  get_order(size));
-- 
1.8.3.1

  parent reply	other threads:[~2018-05-21 15:20 UTC|newest]

Thread overview: 72+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-05-21 15:20 [RFC PATCH v2 00/12] get rid of GFP_ZONE_TABLE/BAD Huaisheng Ye
2018-05-21 15:20 ` [RFC PATCH v2 01/12] include/linux/gfp.h: " Huaisheng Ye
2018-05-21 15:20 ` Huaisheng Ye
2018-05-21 15:20 ` [RFC PATCH v2 02/12] arch/x86/kernel/amd_gart_64: update usage of address zone modifiers Huaisheng Ye
2018-05-22  9:38   ` Christoph Hellwig
2018-05-22  9:38   ` Christoph Hellwig
2018-05-22  9:38     ` Christoph Hellwig
2018-05-22 10:17     ` [External] " Huaisheng HS1 Ye
2018-05-22 10:17     ` Huaisheng HS1 Ye
2018-05-22 10:17       ` Huaisheng HS1 Ye
2018-05-21 15:20 ` Huaisheng Ye
2018-05-21 15:20 ` [RFC PATCH v2 03/12] arch/x86/kernel/pci-calgary_64: " Huaisheng Ye
2018-05-21 15:20 ` Huaisheng Ye
2018-05-21 15:20 ` [RFC PATCH v2 04/12] drivers/iommu/amd_iommu: " Huaisheng Ye
2018-05-21 15:20 ` Huaisheng Ye [this message]
2018-05-21 15:20 ` [RFC PATCH v2 05/12] include/linux/dma-mapping: " Huaisheng Ye
2018-05-21 15:30   ` Christoph Hellwig
2018-05-21 15:30   ` Christoph Hellwig
2018-05-21 15:30     ` Christoph Hellwig
2018-05-21 15:20 ` Huaisheng Ye
2018-05-21 15:20 ` [RFC PATCH v2 10/12] mm/zsmalloc: " Huaisheng Ye
2018-05-22 11:22   ` Matthew Wilcox
2018-05-22 11:22     ` Matthew Wilcox
2018-05-22 11:51     ` [External] " Huaisheng HS1 Ye
2018-05-22 11:51     ` Huaisheng HS1 Ye
2018-05-22 11:51       ` Huaisheng HS1 Ye
2018-05-22 11:22   ` Matthew Wilcox
2018-05-21 15:20 ` Huaisheng Ye
2018-05-21 15:20 ` [RFC PATCH v2 11/12] include/linux/highmem: update usage of movableflags Huaisheng Ye
2018-05-21 15:20 ` Huaisheng Ye
2018-05-21 15:20 ` [RFC PATCH v2 12/12] arch/x86/include/asm/page.h: " Huaisheng Ye
2018-05-21 15:20 ` Huaisheng Ye
2018-05-22  9:40 ` [RFC PATCH v2 00/12] get rid of GFP_ZONE_TABLE/BAD Christoph Hellwig
2018-05-22  9:40   ` Christoph Hellwig
2018-05-22  9:40 ` Christoph Hellwig
2018-05-22 18:37 ` Michal Hocko
2018-05-23 16:07   ` [External] " Huaisheng HS1 Ye
2018-05-23 16:07     ` Huaisheng HS1 Ye
2018-05-24 12:18     ` Michal Hocko
2018-05-24 12:18       ` Michal Hocko
2018-05-25  9:43       ` Huaisheng HS1 Ye
2018-05-25  9:43         ` Huaisheng HS1 Ye
2018-05-28 13:37         ` Michal Hocko
2018-05-28 13:37           ` Michal Hocko
2018-05-30  9:02           ` Huaisheng HS1 Ye
2018-05-30  9:02             ` Huaisheng HS1 Ye
2018-05-30  9:11             ` Christoph Hellwig
2018-05-30  9:11               ` Christoph Hellwig
2018-05-30  9:11             ` Christoph Hellwig
2018-05-30  9:12             ` Michal Hocko
2018-05-30  9:12               ` Michal Hocko
2018-05-30  9:12             ` Michal Hocko
2018-05-30  9:02           ` Huaisheng HS1 Ye
2018-05-28 13:37         ` Michal Hocko
2018-05-25  9:43       ` Huaisheng HS1 Ye
2018-05-24 12:18     ` Michal Hocko
2018-05-23 16:07   ` Huaisheng HS1 Ye
2018-05-24  5:19   ` Matthew Wilcox
2018-05-24  5:19     ` Matthew Wilcox
2018-05-24 12:23     ` Michal Hocko
2018-05-24 12:23       ` Michal Hocko
2018-05-24 15:18       ` Matthew Wilcox
2018-05-24 15:18       ` Matthew Wilcox
2018-05-24 15:29         ` Michal Hocko
2018-05-24 15:29         ` Michal Hocko
2018-05-25 12:00           ` Matthew Wilcox
2018-05-25 12:00           ` Matthew Wilcox
2018-05-28 13:33             ` Michal Hocko
2018-05-28 13:33               ` Michal Hocko
2018-05-24 12:23     ` Michal Hocko
2018-05-24  5:19   ` Matthew Wilcox
2018-05-22 18:37 ` Michal Hocko

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1526916033-4877-5-git-send-email-yehs2007@gmail.com \
    --to=yehs2007@gmail.com \
    --cc=akpm@linux-foundation.org \
    --cc=alexander.levin@verizon.com \
    --cc=chengnt@lenovo.com \
    --cc=colyli@suse.de \
    --cc=gregkh@linuxfoundation.org \
    --cc=hehy1@lenovo.com \
    --cc=iommu@lists.linux-foundation.org \
    --cc=joro@8bytes.org \
    --cc=kstewart@linuxfoundation.org \
    --cc=linux-btrfs@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=mgorman@techsingularity.net \
    --cc=mhocko@suse.com \
    --cc=vbabka@suse.cz \
    --cc=willy@infradead.org \
    --cc=xen-devel@lists.xenproject.org \
    --cc=yehs1@lenovo.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.