1 files changed, 13 insertions, 0 deletions

diff --git a/sys/compat/linuxkpi/common/include/linux/sched.h b/sys/compat/linuxkpi/common/include/linux/sched.h
index 5bb9047640b8..aa4bdbc65c5b 100644
--- a/sys/compat/linuxkpi/common/include/linux/sched.h
+++ b/sys/compat/linuxkpi/common/include/linux/sched.h
@@ -45,6 +45,7 @@
 #include <linux/pid.h>
 #include <linux/slab.h>
 #include <linux/string.h>
+#include <linux/spinlock.h>
 #include <linux/time.h>
 
 #include <asm/atomic.h>
@@ -127,6 +128,18 @@ put_task_struct(struct task_struct *task)
 
 #define	need_resched() (curthread->td_flags & TDF_NEEDRESCHED)
 
+static inline int
+cond_resched_lock(spinlock_t *lock)
+{
+
+	if (need_resched() == 0)
+		return (0);
+	spin_lock(lock);
+	cond_resched();
+	spin_unlock(lock);
+	return (1);
+}
+
 bool linux_signal_pending(struct task_struct *task);
 bool linux_fatal_signal_pending(struct task_struct *task);
 bool linux_signal_pending_state(long state, struct task_struct *task);