[Suspend2][ 16/20] [Suspend2] Calculate storage needed for an image.

[Nigel Cunningham <nigel@suspend2.net>]

Calculate the storage (in pages) needed for an image, possibly ignoring the
expected compression ratio and/or allowance for extra pagedir1 pages.

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

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

diff --git a/kernel/power/prepare_image.c b/kernel/power/prepare_image.c
index 12d715a..604089f 100644
--- a/kernel/power/prepare_image.c
+++ b/kernel/power/prepare_image.c
@@ -514,3 +514,9 @@ static int attempt_to_freeze(void)
 	return result;
 }
 
+long storage_needed(int use_ecr, int ignore_extra_pd1_allow)
+{
+	return 	(main_storage_needed(use_ecr, ignore_extra_pd1_allow)
+		       + header_storage_needed());
+}
+

--
Nigel Cunningham		nigel at suspend2 dot net
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