[Suspend2][ 20/28] [Suspend2] Get swapwriter debug info.

[Nigel Cunningham <nigel@suspend2.net>]

Fill a buffer with debug info for the swapwriter.

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

 kernel/power/suspend_swap.c |   28 ++++++++++++++++++++++++++++
 1 files changed, 28 insertions(+), 0 deletions(-)

diff --git a/kernel/power/suspend_swap.c b/kernel/power/suspend_swap.c
index f2940ea..3589b63 100644
--- a/kernel/power/suspend_swap.c
+++ b/kernel/power/suspend_swap.c
@@ -819,3 +819,31 @@ static unsigned long swapwriter_memory_n
 	return 1;
 }
 
+/* Print debug info
+ *
+ * Description:
+ */
+
+static int swapwriter_print_debug_stats(char *buffer, int size)
+{
+	int len = 0;
+	struct sysinfo sysinfo;
+	
+	if (suspend_active_writer != &swapwriterops) {
+		len = snprintf_used(buffer, size, "- Swapwriter inactive.\n");
+		return len;
+	}
+
+	len = snprintf_used(buffer, size, "- Swapwriter active.\n");
+	if (swapfilename[0])
+		len+= snprintf_used(buffer+len, size-len,
+			"  Attempting to automatically swapon: %s.\n", swapfilename);
+
+	si_swapinfo(&sysinfo);
+	
+	len+= snprintf_used(buffer+len, size-len, "  Swap available for image: %ld pages.\n",
+			sysinfo.freeswap + swapwriter_storage_allocated());
+
+	return len;
+}
+

--
Nigel Cunningham		nigel at suspend2 dot net