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mm: cma_alloc: allow to specify GFP mask

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Most users of this interface just want to use it with the default
GFP_KERNEL flags, but for cases where DMA memory is allocated it may be
called from a different context.

No functional change yet, just passing through the flag to the
underlying alloc_contig_range function.

Link: http://lkml.kernel.org/r/20170127172328.18574-2-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 14:58:41 -08:00
committed by Linus Torvalds
parent ca96b62534
commit e2f466e32f
5 changed files with 9 additions and 6 deletions
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2
mm/cma_debug.c
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@@ -138,7 +138,7 @@ static int cma_alloc_mem(struct cma *cma, int count)
if (!mem)
return -ENOMEM;
p = cma_alloc(cma, count, 0);
p = cma_alloc(cma, count, 0, GFP_KERNEL);
if (!p) {
kfree(mem);
return -ENOMEM;