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-rw-r--r--include/linux/ioprio.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h
index 9e30ed6443db..e9bfe6972aed 100644
--- a/include/linux/ioprio.h
+++ b/include/linux/ioprio.h
@@ -71,6 +71,19 @@ static inline int task_nice_ioclass(struct task_struct *task)
}
/*
+ * If the calling process has set an I/O priority, use that. Otherwise, return
+ * the default I/O priority.
+ */
+static inline int get_current_ioprio(void)
+{
+ struct io_context *ioc = current->io_context;
+
+ if (ioc)
+ return ioc->ioprio;
+ return IOPRIO_PRIO_VALUE(IOPRIO_CLASS_NONE, 0);
+}
+
+/*
* For inheritance, return the highest of the two given priorities
*/
extern int ioprio_best(unsigned short aprio, unsigned short bprio);