lkml.org 
[lkml]   [2018]   [May]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[RFC PATCH v2 02/12] arch/x86/kernel/amd_gart_64: update usage of address zone modifiers
Date
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: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Robin Murphy <robin.murphy@arm.com>
---
arch/x86/kernel/amd_gart_64.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/amd_gart_64.c b/arch/x86/kernel/amd_gart_64.c
index ecd486c..1dd6971 100644
--- a/arch/x86/kernel/amd_gart_64.c
+++ b/arch/x86/kernel/amd_gart_64.c
@@ -485,7 +485,7 @@ static int gart_map_sg(struct device *dev, struct scatterlist *sg, int nents,
struct page *page;

if (force_iommu && !(flag & GFP_DMA)) {
- flag &= ~(__GFP_DMA | __GFP_HIGHMEM | __GFP_DMA32);
+ flag &= ~__GFP_ZONE_MASK;
page = alloc_pages(flag | __GFP_ZERO, get_order(size));
if (!page)
return NULL;
--
1.8.3.1
\
 
 \ /
  Last update: 2018-05-21 17:24    [W:0.105 / U:0.956 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site