Their stored values come from zone_page_state() which returns
an unsigned long. To improve code correctness we should avoid
mixing signed and unsigned integers.
Signed-off-by: Alexandru Moise <00moses.alexander00@xxxxxxxxx>
---
mm/page_alloc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 48aaf7b..f55e3a2 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -2242,7 +2242,7 @@ static bool __zone_watermark_ok(struct zone *z, unsigned int order,
/* free_pages may go negative - that's OK */
long min = mark;
int o;
- long free_cma = 0;
+ unsigned long free_cma = 0;
free_pages -= (1 << order) - 1;
if (alloc_flags & ALLOC_HIGH)
@@ -2280,7 +2280,7 @@ bool zone_watermark_ok(struct zone *z, unsigned int order, unsigned long mark,
bool zone_watermark_ok_safe(struct zone *z, unsigned int order,
unsigned long mark, int classzone_idx, int alloc_flags)
{
- long free_pages = zone_page_state(z, NR_FREE_PAGES);
+ unsigned long free_pages = zone_page_state(z, NR_FREE_PAGES);
if (z->percpu_drift_mark && free_pages < z->percpu_drift_mark)
free_pages = zone_page_state_snapshot(z, NR_FREE_PAGES);
--
2.5.3
--
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