We will need this new helper in the next patch.
Unified · Split
| @@ -532,6 +532,15 @@ static void flush_to_ldisc(struct work_struct *work) · 531 unmodified lines | ||
| 532 | 532 | |
| 533 | 533 | } |
| 534 | 534 | |
| 535 | +static inline void tty_flip_buffer_commit(struct tty_buffer *tail) | |
| 536 | +{ | |
| 537 | + /* | |
| 538 | + * Paired w/ acquire in flush_to_ldisc(); ensures flush_to_ldisc() sees | |
| 539 | + * buffer data. | |
| 540 | + */ | |
| 541 | + smp_store_release(&tail->commit, tail->used); | |
| 542 | +} | |
| 543 | + | |
| 535 | 544 | /** |
| 536 | 545 | * tty_flip_buffer_push - push terminal buffers |
| 537 | 546 | * @port: tty port to push |
| @@ -546,11 +555,7 @@ void tty_flip_buffer_push(struct tty_port *port) · 8 unmodified lines | ||
| 546 | 555 | { |
| 547 | 556 | struct tty_bufhead *buf = &port->buf; |
| 548 | 557 | |
| 549 | − /* | |
| 550 | − * Paired w/ acquire in flush_to_ldisc(); ensures flush_to_ldisc() sees | |
| 551 | − * buffer data. | |
| 552 | − */ | |
| 553 | − smp_store_release(&buf->tail->commit, buf->tail->used); | |
| 558 | + tty_flip_buffer_commit(buf->tail); | |
| 554 | 559 | queue_work(system_unbound_wq, &buf->work); |
| 555 | 560 | } |
| 556 | 561 | EXPORT_SYMBOL(tty_flip_buffer_push); |