dma-direct: lift gfp_t manipulation out of__dma_direct_alloc_pages

Move the detailed gfp_t setup from __dma_direct_alloc_pages into the caller to clean things up a little.

Christoph Hellwig committed 6 years ago

Commit 3773dfe1 parent 2f5388a1 file · +5 −7Browse files

Showing the changes to kernel (1 of 1 file). Show all

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@@ -108,7 +108,7 @@ static inline bool dma_should_free_from_pool(struct device *dev, · 107 unmodified lines
108	108	}
109	109
110	110	static struct page __dma_direct_alloc_pages(struct device dev, size_t size,
111		− gfp_t gfp, unsigned long attrs)
	111	+ gfp_t gfp)
112	112	{
113	113	int node = dev_to_node(dev);
114	114	struct page *page = NULL;
@@ -116,11 +116,6 @@ static struct page __dma_direct_alloc_pages(struct device dev, size_t size, · 1 unmodified line
116	116
117	117	WARN_ON_ONCE(!PAGE_ALIGNED(size));
118	118
119		− if (attrs & DMA_ATTR_NO_WARN)
120		− gfp \|= __GFP_NOWARN;
121		−
122		− /* we always manually zero the memory once we are done: */
123		− gfp &= ~__GFP_ZERO;
124	119	gfp \|= dma_direct_optimal_gfp_mask(dev, dev->coherent_dma_mask,
125	120	&phys_limit);
126	121	page = dma_alloc_contiguous(dev, size, gfp);
@@ -164,6 +159,8 @@ void dma_direct_alloc(struct device dev, size_t size, · 37 unmodified lines
164	159	return arch_dma_alloc(dev, size, dma_handle, gfp, attrs);
165	160
166	161	size = PAGE_ALIGN(size);
	162	+ if (attrs & DMA_ATTR_NO_WARN)
	163	+ gfp \|= __GFP_NOWARN;
167	164
168	165	if (dma_should_alloc_from_pool(dev, gfp, attrs)) {
169	166	u64 phys_mask;
@@ -177,7 +174,8 @@ void dma_direct_alloc(struct device dev, size_t size, · 7 unmodified lines
177	174	goto done;
178	175	}
179	176
180		− page = __dma_direct_alloc_pages(dev, size, gfp, attrs);
	177	+ /* we always manually zero the memory once we are done */
	178	+ page = __dma_direct_alloc_pages(dev, size, gfp & ~__GFP_ZERO);
181	179	if (!page)
182	180	return NULL;
183	181

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