[Suspend2][ 25/35] [Suspend2] Does a filewriter image exist?

[Nigel Cunningham <nigel@suspend2.net>]

Return whether an image exists at the current resume2= location.

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

 kernel/power/suspend_file.c |   13 +++++++++++++
 1 files changed, 13 insertions(+), 0 deletions(-)

diff --git a/kernel/power/suspend_file.c b/kernel/power/suspend_file.c
index 04f9cd0..5a1bfe6 100644
--- a/kernel/power/suspend_file.c
+++ b/kernel/power/suspend_file.c
@@ -775,3 +775,16 @@ static int filewriter_invalidate_image(v
 	return result;
 }
 
+/*
+ * Image_exists
+ *
+ */
+
+static int filewriter_image_exists(void)
+{
+	if (!filewriter_target_bdev)
+		reopen_resume_devt();
+
+	return filewriter_signature_op(GET_IMAGE_EXISTS);
+}
+

--
Nigel Cunningham		nigel at suspend2 dot net
-
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