Commit 94737a85 authored Feb 11, 2015 by George G. Davis Committed by Linus Torvalds Feb 11, 2015

mm: cma: fix totalcma_pages to include DT defined CMA regions



The totalcma_pages variable is not updated to account for CMA regions
defined via device tree reserved-memory sub-nodes.  Fix this omission by
moving the calculation of totalcma_pages into cma_init_reserved_mem()
instead of cma_declare_contiguous() such that it will include reserved
memory used by all CMA regions.

Signed-off-by: George G. Davis <george_davis@mentor.com>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent c32b3cbe

mm/cma.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -199,6 +199,7 @@ int __init cma_init_reserved_mem(phys_addr_t base, phys_addr_t size,
		cma->order_per_bit = order_per_bit;
		*res_cma = cma;
		cma_area_count++;
		totalcma_pages += (size / PAGE_SIZE);

		return 0;
		}
		@@ -337,7 +338,6 @@ int __init cma_declare_contiguous(phys_addr_t base,
		if (ret)
		goto err;

		totalcma_pages += (size / PAGE_SIZE);
		pr_info("Reserved %ld MiB at %pa\n", (unsigned long)size / SZ_1M,
		&base);
		return 0;

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