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-rw-r--r--common/state/state.c15
1 files changed, 15 insertions, 0 deletions
diff --git a/common/state/state.c b/common/state/state.c
index 3997f8150c..9b1d4edef1 100644
--- a/common/state/state.c
+++ b/common/state/state.c
@@ -20,6 +20,7 @@
#include <errno.h>
#include <fs.h>
#include <crc.h>
+#include <init.h>
#include <linux/err.h>
#include <linux/list.h>
@@ -54,6 +55,9 @@ static struct state *state_new(const char *name)
state->dirty = 1;
dev_add_param_bool(&state->dev, "dirty", NULL, NULL, &state->dirty,
NULL);
+ state->save_on_shutdown = 1;
+ dev_add_param_bool(&state->dev, "save_on_shutdown", NULL, NULL,
+ &state->save_on_shutdown, NULL);
list_add_tail(&state->list, &state_list);
@@ -571,3 +575,14 @@ void state_info(void)
printf("(no backend)\n");
}
}
+
+static void state_shutdown(void)
+{
+ struct state *state;
+
+ list_for_each_entry(state, &state_list, list) {
+ if (state->save_on_shutdown)
+ state_save(state);
+ }
+}
+predevshutdown_exitcall(state_shutdown);