From: Namhyung Kim <namhyung.kim@lge.com>
Date: Thu, 19 Jan 2012 22:23:10 +0000 (+0100)
Subject: PM / Hibernate: Correct additional pages number calculation
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=160cb5a97daef0cb894685d84c9d4700bb7cccb4;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

PM / Hibernate: Correct additional pages number calculation

The struct bm_block is allocated by chain_alloc(),
so it'd better counting it in LINKED_PAGE_DATA_SIZE.

Signed-off-by: Namhyung Kim <namhyung.kim@lge.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---

diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 1cf88900ec4f..6a768e537001 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -812,7 +812,8 @@ unsigned int snapshot_additional_pages(struct zone *zone)
 	unsigned int res;
 
 	res = DIV_ROUND_UP(zone->spanned_pages, BM_BITS_PER_BLOCK);
-	res += DIV_ROUND_UP(res * sizeof(struct bm_block), PAGE_SIZE);
+	res += DIV_ROUND_UP(res * sizeof(struct bm_block),
+			    LINKED_PAGE_DATA_SIZE);
 	return 2 * res;
 }