diff options
| author | Tejun Heo <tj@kernel.org> | 2011-05-02 14:08:43 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2011-05-02 14:08:47 +0200 |
| commit | aff364860aa105b2deacc6f21ec8ef524460e3fc (patch) | |
| tree | 18409ebe16b25b141598da9b6386d69416c06afa /drivers/tty | |
| parent | c7a7b814c9dca9ee01b38e63b4a46de87156d3b6 (diff) | |
| parent | 993ba1585cbb03fab012e41d1a5d24330a283b31 (diff) | |
Merge branch 'x86/numa' into x86-mm
Merge reason: Pick up x86-32 remap allocator cleanup changes - 14
commits, 3fe14ab541^..993ba1585c.
3fe14ab541: x86-32, numa: Fix failure condition check in alloc_remap()
993ba1585c: x86-32, numa: Update remap allocator comments
Scheduled NUMA init 32/64bit unification changes depend on them.
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/n_tty.c | 6 | ||||
| -rw-r--r-- | drivers/tty/tty_buffer.c | 4 |
2 files changed, 7 insertions, 3 deletions
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c index 428f4fe0b5f7..0ad32888091c 100644 --- a/drivers/tty/n_tty.c +++ b/drivers/tty/n_tty.c @@ -95,6 +95,7 @@ static void n_tty_set_room(struct tty_struct *tty) { /* tty->read_cnt is not read locked ? */ int left = N_TTY_BUF_SIZE - tty->read_cnt - 1; + int old_left; /* * If we are doing input canonicalization, and there are no @@ -104,7 +105,12 @@ static void n_tty_set_room(struct tty_struct *tty) */ if (left <= 0) left = tty->icanon && !tty->canon_data; + old_left = tty->receive_room; tty->receive_room = left; + + /* Did this open up the receive buffer? We may need to flip */ + if (left && !old_left) + schedule_work(&tty->buf.work); } static void put_tty_queue_nolock(unsigned char c, struct tty_struct *tty) diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index b9451219528b..f1a7918d71aa 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -442,10 +442,8 @@ static void flush_to_ldisc(struct work_struct *work) line discipline as we want to empty the queue */ if (test_bit(TTY_FLUSHPENDING, &tty->flags)) break; - if (!tty->receive_room || seen_tail) { - schedule_work(&tty->buf.work); + if (!tty->receive_room || seen_tail) break; - } if (count > tty->receive_room) count = tty->receive_room; char_buf = head->char_buf_ptr + head->read; |