Adding upstream version 255.4.upstream/255.4

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 26 insertions, 0 deletions

diff --git a/src/shared/hibernate-util.h b/src/shared/hibernate-util.h
new file mode 100644
index 0000000..2ae10fb
--- /dev/null
+++ b/src/shared/hibernate-util.h
@@ -0,0 +1,26 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
+
+#include <linux/fiemap.h>
+#include <sys/types.h>
+
+/* represents values for /sys/power/resume & /sys/power/resume_offset and the corresponding path */
+typedef struct HibernationDevice {
+        dev_t devno;
+        uint64_t offset; /* in memory pages */
+        char *path;
+} HibernationDevice;
+
+void hibernation_device_done(HibernationDevice *hibernation_device);
+
+int find_suitable_hibernation_device_full(HibernationDevice *ret_device, uint64_t *ret_size, uint64_t *ret_used);
+static inline int find_suitable_hibernation_device(HibernationDevice *ret) {
+        return find_suitable_hibernation_device_full(ASSERT_PTR(ret), NULL, NULL);
+}
+
+int hibernation_is_safe(void);
+
+int write_resume_config(dev_t devno, uint64_t offset, const char *device);
+
+/* Only for test-fiemap */
+int read_fiemap(int fd, struct fiemap **ret);