[S390] cio: Do timed recovery on workqueue.

We can't do our recovery in softirq context, so we schedule it from
our timer function.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 676b47e07ed0a336fb1df81b80dfb07547c6c089..fec004f62bcff78b5bc5e26ee12a2161ec65106a 100644 (file)
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1535,7 +1535,7 @@ static int recovery_check(struct device *dev, void *data)
        return 0;
 }
 
-static void recovery_func(unsigned long data)
+static void recovery_work_func(struct work_struct *unused)
 {
        int redo = 0;
 
@@ -1553,6 +1553,17 @@ static void recovery_func(unsigned long data)
                CIO_MSG_EVENT(2, "recovery: end\n");
 }
 
+static DECLARE_WORK(recovery_work, recovery_work_func);
+
+static void recovery_func(unsigned long data)
+{
+       /*
+        * We can't do our recovery in softirq context and it's not
+        * performance critical, so we schedule it.
+        */
+       schedule_work(&recovery_work);
+}
+
 void ccw_device_schedule_recovery(void)
 {
        unsigned long flags;