diff options
| author | Richard Braun <rbraun@sceen.net> | 2017-05-09 22:15:23 +0200 |
|---|---|---|
| committer | Richard Braun <rbraun@sceen.net> | 2017-05-10 00:06:02 +0200 |
| commit | f9af05807ab952a512619d94ec1fa260787b89c1 (patch) | |
| tree | d90ff2173556e8a70d7fd25ecd28a49ca250dd28 /kern/thread.c | |
| parent | 7cab94c388ac03b724c5385f8cff05d96e1a55e9 (diff) | |
kern/thread: remove memory barrier
The flag operations already use atomic accessors, making the barrier
irrelevant.
Diffstat (limited to 'kern/thread.c')
| -rw-r--r-- | kern/thread.c | 7 |
1 files changed, 0 insertions, 7 deletions
diff --git a/kern/thread.c b/kern/thread.c index 12d42453..19032b25 100644 --- a/kern/thread.c +++ b/kern/thread.c @@ -110,7 +110,6 @@ #include <kern/turnstile.h> #include <kern/work.h> #include <machine/cpu.h> -#include <machine/mb.h> #include <machine/pmap.h> #include <machine/tcb.h> #include <vm/vm_map.h> @@ -586,12 +585,6 @@ thread_runq_wakeup(struct thread_runq *runq, struct thread *thread) if ((runq != thread_runq_local()) && thread_test_flag(runq->current, THREAD_YIELD)) { - /* - * Make the new flags globally visible before sending the scheduling - * request. This barrier pairs with the one implied by the received IPI. - */ - mb_store(); - cpu_send_thread_schedule(thread_runq_cpu(runq)); } } |