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mm/page_alloc.c:__setup_per_zone_wmarks: make min_pages unsigned long 

`int' is an inappropriate type for a number-of-pages counter.

While we're there, use the clamp() macro.

Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: Hugh Dickins <hughd@google.com>
Cc: Satoru Moriya <satoru.moriya@hds.com>
Cc: Simon Jeons <simon.jeons@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
hifive-unleashed-5.1
Andrew Morton 2013-02-22 16:32:22 -08:00 committed by Linus Torvalds
parent af34770e55
commit 90ae8d670c
1 changed files with 2 additions and 5 deletions
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7
mm/page_alloc.c
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@ -5247,13 +5247,10 @@ static void __setup_per_zone_wmarks(void)
* deltas controls asynch page reclaim, and so should * deltas controls asynch page reclaim, and so should
* not be capped for highmem. * not be capped for highmem.
*/ */
int min_pages; unsigned long min_pages;
min_pages = zone->present_pages / 1024; min_pages = zone->present_pages / 1024;
if (min_pages < SWAP_CLUSTER_MAX) min_pages = clamp(min_pages, SWAP_CLUSTER_MAX, 128UL);
min_pages = SWAP_CLUSTER_MAX;
if (min_pages > 128)
min_pages = 128;
zone->watermark[WMARK_MIN] = min_pages; zone->watermark[WMARK_MIN] = min_pages;
} else { } else {
/* /*