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| author | Joonsoo Kim <js1304@gmail.com> | 2012-12-11 16:01:17 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-11 17:22:24 -0800 |
| commit | 4de22c0584fb0566487b2cba5cdfbce346b18402 (patch) | |
| tree | d70da2627db4524c23c6338a5ee65e9758376420 /mm/highmem.c | |
| parent | 6555bc035731eab76c0901925034465d3ad2099c (diff) | |
| download | lwn-4de22c0584fb0566487b2cba5cdfbce346b18402.tar.gz lwn-4de22c0584fb0566487b2cba5cdfbce346b18402.zip | |
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>
Diffstat (limited to 'mm/highmem.c')
| -rw-r--r-- | mm/highmem.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/highmem.c b/mm/highmem.c index 2da13a5c50e2..2576a7118981 100644 --- a/mm/highmem.c +++ b/mm/highmem.c @@ -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]); } |