[Suspend2][ 17/20] [Suspend2] Calculate the amount of free memory needed.

Nigel Cunningham
2006-06-26T22:36:47Z

Calculate the minimum amount of free ram before we will consider ourselves
to have enough to cover all expected needs. We can have the VM freeing
memory for us - that would create an inconsistent image.

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

kernel/power/prepare_image.c | 8 ++++++++
1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/kernel/power/prepare_image.c b/kernel/power/prepare_image.c
index 604089f..054d0d4 100644
--- a/kernel/power/prepare_image.c
+++ b/kernel/power/prepare_image.c
@@ -520,3 +520,11 @@ long storage_needed(int use_ecr, int ign
+ header_storage_needed());
}

+long ram_to_suspend(void)
+{
+ return (1 +
+ max_t(long, (pagedir1.pageset_size + extra_pd1_pages_allowance -
+ pageset2_sizelow - extra_pagedir_pages_allocated) / 2, 0) +
+ MIN_FREE_RAM + suspend_memory_for_modules());