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diff --git a/sys/compat/linux/linux_dummy.c b/sys/compat/linux/linux_dummy.c
--- a/sys/compat/linux/linux_dummy.c
+++ b/sys/compat/linux/linux_dummy.c
@@ -97,7 +97,6 @@
/* Linux 3.8: */
DUMMY(finit_module);
DUMMY(sched_setattr);
-DUMMY(sched_getattr);
/* Linux 3.18: */
DUMMY(bpf);
/* Linux 3.19: */
diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c
--- a/sys/compat/linux/linux_misc.c
+++ b/sys/compat/linux/linux_misc.c
@@ -116,6 +116,25 @@
l_size_t ss_len;
};
+#define LINUX_SCHED_ATTR_SIZE_VER0 48
+/**
+ * Linux struct sched_attr
+ */
+struct linux_sched_attr {
+ l_uint size;
+ l_uint sched_policy;
+ uint64_t sched_flags;
+ int32_t sched_nice;
+ l_uint sched_priority;
+
+ uint64_t sched_runtime;
+ uint64_t sched_deadline;
+ uint64_t sched_period;
+
+ l_uint sched_util_min;
+ l_uint sched_util_max;
+};
+
static int linux_utimensat_lts_to_ts(struct l_timespec *,
struct timespec *);
#if defined(__i386__) || (defined(__amd64__) && defined(COMPAT_LINUX32))
@@ -1350,6 +1369,63 @@
return (error);
}
+int
+linux_sched_getattr(struct thread *td, struct linux_sched_getattr_args *args)
+{
+ struct linux_sched_attr attr;
+ struct sched_param sched_param;
+ struct thread *tdt;
+ int error, policy;
+
+ if (args->attr == NULL || args->pid < 0 || args->flags != 0 ||
+ args->size < LINUX_SCHED_ATTR_SIZE_VER0 || args->size > PAGE_SIZE)
+ return (EINVAL);
+
+ tdt = linux_tdfind(td, args->pid, -1);
+ if (tdt == NULL)
+ return (ESRCH);
+
+ error = kern_sched_getscheduler(td, tdt, &policy);
+ if (error) {
+ PROC_UNLOCK(tdt->td_proc);
+ return (error);
+ }
+
+ error = kern_sched_getparam(td, tdt, &sched_param);
+ PROC_UNLOCK(tdt->td_proc);
+ if (error)
+ return (error);
+
+ memset(&attr, 0, sizeof(attr));
+
+ attr.size = MIN(args->size, sizeof(attr));
+
+ if (linux_map_sched_prio) {
+ switch (policy) {
+ case SCHED_OTHER:
+ sched_param.sched_priority = 0;
+ break;
+ case SCHED_FIFO:
+ case SCHED_RR:
+ /*
+ * Map [0, RTP_PRIO_MAX - RTP_PRIO_MIN] to
+ * [1, LINUX_MAX_RT_PRIO - 1] (rounding up).
+ */
+ sched_param.sched_priority =
+ (sched_param.sched_priority *
+ (LINUX_MAX_RT_PRIO - 1) +
+ (RTP_PRIO_MAX - RTP_PRIO_MIN - 1)) /
+ (RTP_PRIO_MAX - RTP_PRIO_MIN) + 1;
+ break;
+ }
+ attr.sched_priority = sched_param.sched_priority;
+ } else {
+ attr.sched_priority = sched_param.sched_priority;
+ }
+
+ return (copyout(&attr, args->attr, MIN(args->size, sizeof(attr))));
+}
+
int
linux_sched_get_priority_max(struct thread *td,
struct linux_sched_get_priority_max_args *args)

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