X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;ds=sidebyside;f=include%2Flinux%2Fioprio.h;h=f98a656b17e5b4b732e57e0e70e4eb5ec53bce84;hb=8113587c2d14d3be2414190845b2e2617c0aa33b;hp=2a3bb1bb74336f27c27f6627153900d46d6c178a;hpb=e189f3495c4e30fc84fc9241096edf3932e23439;p=linux-2.6-omap-h63xx.git

diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h
index 2a3bb1bb743..f98a656b17e 100644
--- a/include/linux/ioprio.h
+++ b/include/linux/ioprio.h
@@ -67,6 +67,20 @@ static inline int task_nice_ioprio(struct task_struct *task)
 	return (task_nice(task) + 20) / 5;
 }
 
+/*
+ * This is for the case where the task hasn't asked for a specific IO class.
+ * Check for idle and rt task process, and return appropriate IO class.
+ */
+static inline int task_nice_ioclass(struct task_struct *task)
+{
+	if (task->policy == SCHED_IDLE)
+		return IOPRIO_CLASS_IDLE;
+	else if (task->policy == SCHED_FIFO || task->policy == SCHED_RR)
+		return IOPRIO_CLASS_RT;
+	else
+		return IOPRIO_CLASS_BE;
+}
+
 /*
  * For inheritance, return the highest of the two given priorities
  */