-----
With the introduction of cfq v3 (aka cfq-ts or time sliced cfq), basic io
-priorities is supported for reads on files. This enables users to io nice
-processes or process groups, similar to what has been possible to cpu
-scheduling for ages. This document mainly details the current possibilites
-with cfq, other io schedulers do not support io priorities so far.
+priorities are supported for reads on files. This enables users to io nice
+processes or process groups, similar to what has been possible with cpu
+scheduling for ages. This document mainly details the current possibilities
+with cfq; other io schedulers do not support io priorities thus far.
Scheduling classes
------------------
#error "Unsupported arch"
#endif
-_syscall3(int, ioprio_set, int, which, int, who, int, ioprio);
-_syscall2(int, ioprio_get, int, which, int, who);
+static inline int ioprio_set(int which, int who, int ioprio)
+{
+ return syscall(__NR_ioprio_set, which, who, ioprio);
+}
+
+static inline int ioprio_get(int which, int who)
+{
+ return syscall(__NR_ioprio_get, which, who);
+}
enum {
IOPRIO_CLASS_NONE,
---> snip ionice.c tool <---
-March 11 2005, Jens Axboe <axboe@suse.de>
+March 11 2005, Jens Axboe <jens.axboe@oracle.com>