diff options
Diffstat (limited to 'kern/thread.c')
| -rw-r--r-- | kern/thread.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/kern/thread.c b/kern/thread.c index 71943c04..0bad0752 100644 --- a/kern/thread.c +++ b/kern/thread.c @@ -96,6 +96,7 @@ #include <kern/cpumap.h> #include <kern/init.h> #include <kern/kmem.h> +#include <kern/latomic.h> #include <kern/list.h> #include <kern/macros.h> #include <kern/panic.h> @@ -674,7 +675,9 @@ thread_runq_schedule(struct thread_runq *runq) * and locking the run queue again is equivalent to a full memory * barrier. */ + latomic_fence(LATOMIC_ACQ_REL); tcb_switch(&prev->tcb, &next->tcb); + latomic_fence(LATOMIC_ACQ_REL); /* * The thread is dispatched on a processor once again. @@ -685,7 +688,6 @@ thread_runq_schedule(struct thread_runq *runq) * referenced any more. * - The current thread may have been migrated to another processor. */ - barrier(); thread_runq_schedule_load(prev); next = NULL; |