X-Git-Url: https://git.kernel.dk/?p=fio.git;a=blobdiff_plain;f=os%2Fos-linux.h;h=869a25d8ee5d86c684762d91c4f7a4496f2b5d7f;hp=acc5a202aa80fc611bb11ed0bfa7421eaeaece6b;hb=95820b6e6c92025df8d89c0bf39b174e53137c41;hpb=f2a2ce0eedb44eaa8689e4cbfa77c79b1751b216

diff --git a/os/os-linux.h b/os/os-linux.h
index acc5a202..869a25d8 100644
--- a/os/os-linux.h
+++ b/os/os-linux.h
@@ -35,7 +35,6 @@
 #define FIO_HAVE_TRIM
 #define FIO_HAVE_BINJECT
 #define FIO_HAVE_GETTID
-#define FIO_HAVE_SCHED_IDLE
 #define FIO_USE_GENERIC_INIT_RANDOM_STATE
 
 #ifdef MAP_HUGETLB
@@ -76,18 +75,6 @@ static inline int fio_cpuset_exit(os_cpu_mask_t *mask)
 
 #define FIO_MAX_CPUS			CPU_SETSIZE
 
-static inline int ioprio_set(int which, int who, int ioprio)
-{
-	return syscall(__NR_ioprio_set, which, who, ioprio);
-}
-
-static inline int gettid(void)
-{
-	return syscall(__NR_gettid);
-}
-
-#define SPLICE_DEF_SIZE	(64*1024)
-
 enum {
 	IOPRIO_CLASS_NONE,
 	IOPRIO_CLASS_RT,
@@ -104,6 +91,25 @@ enum {
 #define IOPRIO_BITS		16
 #define IOPRIO_CLASS_SHIFT	13
 
+static inline int ioprio_set(int which, int who, int ioprio_class, int ioprio)
+{
+	/*
+	 * If no class is set, assume BE
+	 */
+	if (!ioprio_class)
+		ioprio_class = IOPRIO_CLASS_BE;
+
+	ioprio |= ioprio_class << IOPRIO_CLASS_SHIFT;
+	return syscall(__NR_ioprio_set, which, who, ioprio);
+}
+
+static inline int gettid(void)
+{
+	return syscall(__NR_gettid);
+}
+
+#define SPLICE_DEF_SIZE	(64*1024)
+
 #ifndef BLKGETSIZE64
 #define BLKGETSIZE64	_IOR(0x12,114,size_t)
 #endif
@@ -247,10 +253,12 @@ static inline int os_trim(int fd, unsigned long long start,
 	return errno;
 }
 
+#ifdef CONFIG_SCHED_IDLE
 static inline int fio_set_sched_idle(void)
 {
 	struct sched_param p = { .sched_priority = 0, };
 	return sched_setscheduler(gettid(), SCHED_IDLE, &p);
 }
+#endif
 
 #endif