From 177380abbea4d8963513bd8ce1859bf3bc5a2f28 Mon Sep 17 00:00:00 2001
From: Aaron Carroll <aaronc@cse.unsw.edu.au>
Date: Tue, 12 Mar 2013 15:46:10 +1100
Subject: [PATCH 1/1] Android: add ioprio support

Signed-off-by: Jens Axboe <axboe@kernel.dk>
---
 os/os-android.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/os/os-android.h b/os/os-android.h
index 3bb44b95..070aa1a3 100644
--- a/os/os-android.h
+++ b/os/os-android.h
@@ -19,6 +19,7 @@
 
 #define FIO_HAVE_DISK_UTIL
 #define FIO_HAVE_IOSCHED_SWITCH
+#define FIO_HAVE_IOPRIO
 #define FIO_HAVE_ODIRECT
 #define FIO_HAVE_HUGETLB
 #define FIO_HAVE_BLKTRACE
@@ -78,6 +79,27 @@ static inline int shmdt (const void *__shmaddr)
 
 #define SPLICE_DEF_SIZE	(64*1024)
 
+static inline int ioprio_set(int which, int who, int ioprio)
+{
+	return syscall(__NR_ioprio_set, which, who, ioprio);
+}
+
+enum {
+	IOPRIO_CLASS_NONE,
+	IOPRIO_CLASS_RT,
+	IOPRIO_CLASS_BE,
+	IOPRIO_CLASS_IDLE,
+};
+
+enum {
+	IOPRIO_WHO_PROCESS = 1,
+	IOPRIO_WHO_PGRP,
+	IOPRIO_WHO_USER,
+};
+
+#define IOPRIO_BITS		16
+#define IOPRIO_CLASS_SHIFT	13
+
 #ifndef BLKGETSIZE64
 #define BLKGETSIZE64	_IOR(0x12,114,size_t)
 #endif
-- 
2.25.1