Commit 4de22c05 authored Dec 11, 2012 by Joonsoo Kim Committed by Linus Torvalds Dec 11, 2012

mm, highmem: use PKMAP_NR() to calculate an index of pkmap



To calculate an index of pkmap, using PKMAP_NR() is more understandable
and maintainable, so change it.

Signed-off-by: Joonsoo Kim <js1304@gmail.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 6555bc03

mm/highmem.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -99,7 +99,7 @@ struct page kmap_to_page(void vaddr)
		unsigned long addr = (unsigned long)vaddr;

		if (addr >= PKMAP_ADDR(0) && addr < PKMAP_ADDR(LAST_PKMAP)) {
		int i = (addr - PKMAP_ADDR(0)) >> PAGE_SHIFT;
		int i = PKMAP_NR(addr);
		return pte_page(pkmap_page_table[i]);
		}