[Suspend2][ 3/7] [Suspend2] Pages for zone.

[Nigel Cunningham <nigel@suspend2.net>]

Find out how many pages are used for the bitmap for a given zone.

Signed-off-by: Nigel Cunningham <nigel@suspend2.net>

 kernel/power/pageflags.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/kernel/power/pageflags.c b/kernel/power/pageflags.c
index 3781fc8..ec028d3 100644
--- a/kernel/power/pageflags.c
+++ b/kernel/power/pageflags.c
@@ -37,3 +37,9 @@ static int num_zones(void)
 	return result;
 }
 
+static int pages_for_zone(struct zone *zone)
+{
+	return (zone->spanned_pages + (PAGE_SIZE << 3) - 1) /
+			(PAGE_SIZE << 3);
+}
+

--
Nigel Cunningham		nigel at suspend2 dot net
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