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mm: wire up GFP flag passing in dma_alloc_from_contiguous

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The callers of the DMA alloc functions already provide the proper
context GFP flags.  Make sure to pass them through to the CMA allocator,
to make the CMA compaction context aware.

Link: http://lkml.kernel.org/r/20170127172328.18574-3-l.stach@pengutronix.de
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Radim Krcmar <rkrcmar@redhat.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Chris Zankel <chris@zankel.net>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Alexander Graf <agraf@suse.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Lucas Stach
2017-02-24 14:58:44 -08:00
committed by Linus Torvalds
parent e2f466e32f
commit 712c604dcd
9 changed files with 24 additions and 19 deletions
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3
arch/x86/kernel/pci-dma.c
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@@ -91,7 +91,8 @@ again:
page = NULL;
/* CMA can be used only in the context which permits sleeping */
if (gfpflags_allow_blocking(flag)) {
page = dma_alloc_from_contiguous(dev, count, get_order(size));
page = dma_alloc_from_contiguous(dev, count, get_order(size),
flag);
if (page && page_to_phys(page) + size > dma_mask) {
dma_release_from_contiguous(dev, page, count);
page = NULL;