Make it possible to set the s2disk shutdown method in the config file.
Jason
---
HOWTO | 6 ++++++
resume.c | 5 +++++
suspend.c | 14 +++++++++++++-
swsusp.h | 2 +-
4 files changed, 25 insertions(+), 2 deletions(-)
Index: suspend/suspend.c
===================================================================
--- suspend.orig/suspend.c
+++ suspend/suspend.c
@@ -66,6 +66,8 @@
static char s2ram;
static char early_writeout;
static char splash_param;
+#define SHUTDOWN_LEN 16
+static char shutdown_method[SHUTDOWN_LEN];
static int suspend_swappiness = SUSPEND_SWAPPINESS;
static struct splash splash;
@@ -140,6 +142,12 @@
.fmt = "%c",
.ptr = NULL,
},
+ {
+ .name = "shutdown method",
+ .fmt = "%s",
+ .ptr = shutdown_method,
+ .len = SHUTDOWN_LEN,
+ },
};
static unsigned int page_size;
@@ -658,7 +666,11 @@
static void suspend_shutdown(void)
{
- power_off();
+ /* todo: platform, S3 */
+ if (!strcmp(shutdown_method, "reboot"))
+ reboot();
+ else
+ power_off();
/* Signature is on disk, it is very dangerous to continue now.
* We'd do resume with stale caches on next boot. */
fprintf(stderr,"Powerdown failed. That's impossible.\n");
Index: suspend/swsusp.h
===================================================================
--- suspend.orig/swsusp.h
+++ suspend/swsusp.h
@@ -170,7 +170,7 @@
#define SUSPEND_SWAPPINESS 100
-#define GEN_PARAM 9
+#define GEN_PARAM 10
#ifdef CONFIG_COMPRESS
#define COMPRESS_PARAM 1
Index: suspend/resume.c
===================================================================
--- suspend.orig/resume.c
+++ suspend/resume.c
@@ -122,6 +122,11 @@
.fmt = "%c",
.ptr = &resume_pause,
},
+ {
+ .name = "shutdown method",
+ .fmt = "%s",
+ .ptr = NULL,
+ },
};
static unsigned int page_size;
Index: suspend/HOWTO
===================================================================
--- suspend.orig/HOWTO
+++ suspend/HOWTO
@@ -279,6 +279,12 @@
and wait for a keypress. This allows the image i/o benchmarks that are printed
during resume to be read.
+If the "shutdown method" parameter is set to "reboot", the s2disk utility will
+reboot the machine rather than powering down. This is useful when testing
+repeated benchmarks, such as when checking whether "early writeout" produces a
+speedup or not for your combination of hardware, image size, and s2disk
+parameters.
+
The "splash" parameter is used to make s2disk and/or resume use a splash system
(when set to 'y'). Currently the bootsplash.org and splashy splash systems
are supported. Note that for both systems your initrd or initramfs will
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