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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>
This commit is contained in:
Namhyung Kim 2012-01-19 23:23:10 +01:00 committed by Rafael J. Wysocki
parent 5eb6f9ad96
commit 160cb5a97d
1 changed files with 2 additions and 1 deletions
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3
kernel/power/snapshot.c
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@ -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;
}