Properly convert FreeBSD priority values into Linux values in the

getpriority(2) syscall.

PR:		kern/81951
Submitted by:	Andriy Gapon <avg@icyb.net.ua>

1 files changed, 13 insertions, 0 deletions

diff --git a/sys/compat/linux/linux_misc.c b/sys/compat/linux/linux_misc.c
index 4c6b53f..e72c528 100644
--- a/sys/compat/linux/linux_misc.c
+++ b/sys/compat/linux/linux_misc.c
@@ -1401,3 +1401,16 @@ linux_nosys(struct thread *td, struct nosys_args *ignore)
 
 	return (ENOSYS);
 }
+
+int
+linux_getpriority(struct thread *td, struct linux_getpriority_args *args)
+{
+	struct getpriority_args	bsd_args;
+	int error;
+
+	bsd_args.which = args->which;
+	bsd_args.who = args->who;
+	error = getpriority(td, &bsd_args);
+	td->td_retval[0] = 20 - td->td_retval[0];
+	return error;
+}