mm/page_alloc: Add folio allocation functions

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The __folio_alloc(), __folio_alloc_node() and folio_alloc() functions
are mostly for type safety, but they also ensure that the page allocator
allocates a compound page and initialises the deferred list if the page
is large enough to have one.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>

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This commit is contained in:

Matthew Wilcox (Oracle) 2020-12-15 22:55:54 -05:00

parent 0d31125d2d

commit cc09cb1341

3 changed files with 38 additions and 0 deletions

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16

include/linux/gfp.h

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10

mm/mempolicy.c

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12

mm/page_alloc.c

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