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mm: use proper type for cma_[alloc|release]

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size_t in cma_alloc is confusing since it makes people think it's byte
count, not pages.  Change it to unsigned long[1].

The unsigned int in cma_release is also not right so change it.  Since we
have unsigned long in cma_release, free_contig_range should also respect
it.

[1] 67a2e213e7, mm: cma: fix incorrect type conversion for size during dma allocation

Link: https://lore.kernel.org/linux-mm/20210324043434.GP1719932@casper.infradead.org/
Link: https://lkml.kernel.org/r/20210331164018.710560-1-minchan@kernel.org
Signed-off-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Minchan Kim
2021-05-04 18:37:34 -07:00
committed by Linus Torvalds
parent 3aab8ae7aa
commit 78fa51503f
5 changed files with 26 additions and 25 deletions
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2
include/linux/gfp.h
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@@ -657,7 +657,7 @@ extern int alloc_contig_range(unsigned long start, unsigned long end,
extern struct page *alloc_contig_pages(unsigned long nr_pages, gfp_t gfp_mask,
int nid, nodemask_t *nodemask);
#endif
void free_contig_range(unsigned long pfn, unsigned int nr_pages);
void free_contig_range(unsigned long pfn, unsigned long nr_pages);
#ifdef CONFIG_CMA
/* CMA stuff */