Changes in kernel/generic/src/proc/scheduler.c [ba9a150:a6e55886] in mainline

File:

• kernel/generic/src/proc/scheduler.c (modified) (6 diffs)

kernel/generic/src/proc/scheduler.c

@@ -54 +54 @@
 #include <atomic.h>
 #include <synch/spinlock.h>
+#include <synch/workqueue.h>
+#include <synch/rcu.h>
 #include <config.h>
 #include <context.h>
@@ -88 +90 @@
 {
         before_thread_runs_arch();
+        rcu_before_thread_runs();
 
 #ifdef CONFIG_FPU_LAZY
@@ -128 +131 @@
 static void after_thread_ran(void)
 {
+        workq_after_thread_ran();
+        rcu_after_thread_ran();
         after_thread_ran_arch();
 }
@@ -134 +139 @@
 void scheduler_fpu_lazy_request(void)
 {
+restart:
         fpu_enable();
         irq_spinlock_lock(&CPU->lock, false);
@@ -152 +158 @@
                 fpu_context_restore(THREAD->saved_fpu_context);
         } else {
+                /* Allocate FPU context */
+                if (!THREAD->saved_fpu_context) {
+                        /* Might sleep */
+                        irq_spinlock_unlock(&THREAD->lock, false);
+                        irq_spinlock_unlock(&CPU->lock, false);
+                        THREAD->saved_fpu_context =
+                            (fpu_context_t *) slab_alloc(fpu_context_cache, 0);
+
+                        /* We may have switched CPUs during slab_alloc */
+                        goto restart;
+                }
                 fpu_init();
                 THREAD->fpu_context_exists = true;
@@ -413 +430 @@
 
                 case Exiting:
+                        rcu_thread_exiting();
                 repeat:
                         if (THREAD->detached) {