* [RFC PATCH v3 6/9] mm/vmpressure: update usage of zone modifiers
2018-05-23 14:57 [RFC PATCH v3 0/9] get rid of GFP_ZONE_TABLE/BAD Huaisheng Ye
@ 2018-05-23 14:57 ` Huaisheng Ye
0 siblings, 0 replies; 2+ messages in thread
From: Huaisheng Ye @ 2018-05-23 14:57 UTC (permalink / raw)
To: akpm, linux-mm
Cc: mhocko, willy, hch, vbabka, mgorman, kstewart, gregkh, colyli,
chengnt, hehy1, linux-kernel, iommu, xen-devel, linux-btrfs,
Huaisheng Ye, zhongjiang, Minchan Kim, Dan Carpenter,
David Rientjes, Christoph Hellwig
From: Huaisheng Ye <yehs1@lenovo.com>
Use __GFP_ZONE_MOVABLE to replace (__GFP_HIGHMEM | __GFP_MOVABLE).
___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_ZONE_MOVABLE contains encoded ZONE_MOVABLE and __GFP_MOVABLE flag.
With GFP_ZONE_TABLE, __GFP_HIGHMEM ORing __GFP_MOVABLE means gfp_zone
should return ZONE_MOVABLE. In order to keep that compatible with
GFP_ZONE_TABLE, replace (__GFP_HIGHMEM | __GFP_MOVABLE) with
__GFP_ZONE_MOVABLE.
Signed-off-by: Huaisheng Ye <yehs1@lenovo.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: zhongjiang <zhongjiang@huawei.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
---
mm/vmpressure.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/vmpressure.c b/mm/vmpressure.c
index 85350ce..30a40e2 100644
--- a/mm/vmpressure.c
+++ b/mm/vmpressure.c
@@ -256,7 +256,7 @@ void vmpressure(gfp_t gfp, struct mem_cgroup *memcg, bool tree,
* Indirect reclaim (kswapd) sets sc->gfp_mask to GFP_KERNEL, so
* we account it too.
*/
- if (!(gfp & (__GFP_HIGHMEM | __GFP_MOVABLE | __GFP_IO | __GFP_FS)))
+ if (!(gfp & (__GFP_ZONE_MOVABLE | __GFP_IO | __GFP_FS)))
return;
/*
--
1.8.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* [RFC PATCH v3 6/9] mm/vmpressure: update usage of zone modifiers
@ 2018-05-24 15:20 Huaisheng Ye
0 siblings, 0 replies; 2+ messages in thread
From: Huaisheng Ye @ 2018-05-24 15:20 UTC (permalink / raw)
To: akpm, linux-mm
Cc: mhocko, willy, hch, vbabka, mgorman, kstewart, gregkh, colyli,
chengnt, hehy1, linux-kernel, iommu, xen-devel, linux-btrfs,
Huaisheng Ye, zhongjiang, Minchan Kim, Dan Carpenter,
David Rientjes, Christoph Hellwig
From: Huaisheng Ye <yehs1@lenovo.com>
Use __GFP_ZONE_MOVABLE to replace (__GFP_HIGHMEM | __GFP_MOVABLE).
___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_ZONE_MOVABLE contains encoded ZONE_MOVABLE and __GFP_MOVABLE flag.
With GFP_ZONE_TABLE, __GFP_HIGHMEM ORing __GFP_MOVABLE means gfp_zone
should return ZONE_MOVABLE. In order to keep that compatible with
GFP_ZONE_TABLE, replace (__GFP_HIGHMEM | __GFP_MOVABLE) with
__GFP_ZONE_MOVABLE.
Signed-off-by: Huaisheng Ye <yehs1@lenovo.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: zhongjiang <zhongjiang@huawei.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
---
mm/vmpressure.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/vmpressure.c b/mm/vmpressure.c
index 85350ce..30a40e2 100644
--- a/mm/vmpressure.c
+++ b/mm/vmpressure.c
@@ -256,7 +256,7 @@ void vmpressure(gfp_t gfp, struct mem_cgroup *memcg, bool tree,
* Indirect reclaim (kswapd) sets sc->gfp_mask to GFP_KERNEL, so
* we account it too.
*/
- if (!(gfp & (__GFP_HIGHMEM | __GFP_MOVABLE | __GFP_IO | __GFP_FS)))
+ if (!(gfp & (__GFP_ZONE_MOVABLE | __GFP_IO | __GFP_FS)))
return;
/*
--
1.8.3.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
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