Calculate the total amount of storage needed (in pages) for the image header.
Signed-off-by: Nigel Cunningham <[email protected]>
kernel/power/prepare_image.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/kernel/power/prepare_image.c b/kernel/power/prepare_image.c
index 9f1eb74..5070735 100644
--- a/kernel/power/prepare_image.c
+++ b/kernel/power/prepare_image.c
@@ -120,3 +120,16 @@ static long main_storage_needed(int use_
(use_ecr ? suspend_expected_compression_ratio() : 100) / 100);
}
+/*
+ * Storage needed for the image header, in bytes until the return.
+ */
+static int header_storage_needed(void)
+{
+ unsigned long bytes =
+ sizeof(struct suspend_header) +
+ (int) suspend_header_storage_for_modules() +
+ suspend_pageflags_space_needed();
+
+ return ((int) ((bytes + (int) PAGE_SIZE - 1) >> PAGE_SHIFT));
+}
+
--
Nigel Cunningham nigel at suspend2 dot net
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