Get the addresses into which the atomically copied memory should loaded
prior to restoring it. They need to be locations that won't be overwritten
in the process.
Signed-off-by: Nigel Cunningham <[email protected]>
kernel/power/pagedir.c | 26 ++++++++++++++++++++++++++
1 files changed, 26 insertions(+), 0 deletions(-)
diff --git a/kernel/power/pagedir.c b/kernel/power/pagedir.c
index ec75e79..daf498a 100644
--- a/kernel/power/pagedir.c
+++ b/kernel/power/pagedir.c
@@ -308,3 +308,29 @@ void suspend_relocate_if_required(unsign
}
}
+/* get_pageset1_load_addresses
+ *
+ * Description: We check here that pagedir & pages it points to won't collide
+ * with pages where we're going to restore from the loaded pages
+ * later.
+ * Returns: Zero on success, one if couldn't find enough pages (shouldn't
+ * happen).
+ */
+
+int suspend_get_pageset1_load_addresses(void)
+{
+ int i, result = 0;
+ void *this;
+
+ for(i=0; i < pagedir1.pageset_size; i++) {
+ this = (void *) suspend_get_nonconflicting_page();
+ if (!this) {
+ abort_suspend("Error: Ran out of memory seeking locations for reloading data.");
+ result = 1;
+ break;
+ }
+ SetPagePageset1Copy(virt_to_page(this));
+ }
+
+ return result;
+}
--
Nigel Cunningham nigel at suspend2 dot net
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