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| author | Jiri Slaby <jslaby@suse.cz> | 2013-01-03 15:53:06 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-15 22:30:15 -0800 |
| commit | 2e124b4a390ca85325fae75764bef92f0547fa25 (patch) | |
| tree | 5519fbcdbe954e79b271ea6d31ac5a4dc754c4f5 /drivers/tty/tty_buffer.c | |
| parent | d6c53c0e9bd0a83f9f9ddbc9fd80141a54d83896 (diff) | |
| download | lwn-2e124b4a390ca85325fae75764bef92f0547fa25.tar.gz lwn-2e124b4a390ca85325fae75764bef92f0547fa25.zip | |
TTY: switch tty_flip_buffer_push
Now, we start converting tty buffer functions to actually use
tty_port. This will allow us to get rid of the need of tty in many
call sites. Only tty_port will needed and hence no more
tty_port_tty_get in those paths.
Now, the one where most of tty_port_tty_get gets removed:
tty_flip_buffer_push.
IOW we also closed all the races in drivers not using tty_port_tty_get
at all yet.
Also we move tty_flip_buffer_push declaration from include/linux/tty.h
to include/linux/tty_flip.h to all others while we are changing it
anyway.
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/tty_buffer.c')
| -rw-r--r-- | drivers/tty/tty_buffer.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/tty/tty_buffer.c b/drivers/tty/tty_buffer.c index 1bfe97a8e2eb..b6efacadf23b 100644 --- a/drivers/tty/tty_buffer.c +++ b/drivers/tty/tty_buffer.c @@ -544,7 +544,7 @@ void tty_flush_to_ldisc(struct tty_struct *tty) /** * tty_flip_buffer_push - terminal - * @tty: tty to push + * @port: tty port to push * * Queue a push of the terminal flip buffers to the line discipline. This * function must not be called from IRQ context if port->low_latency is @@ -556,9 +556,9 @@ void tty_flush_to_ldisc(struct tty_struct *tty) * Locking: tty buffer lock. Driver locks in low latency mode. */ -void tty_flip_buffer_push(struct tty_struct *tty) +void tty_flip_buffer_push(struct tty_port *port) { - struct tty_bufhead *buf = &tty->port->buf; + struct tty_bufhead *buf = &port->buf; unsigned long flags; spin_lock_irqsave(&buf->lock, flags); @@ -566,7 +566,7 @@ void tty_flip_buffer_push(struct tty_struct *tty) buf->tail->commit = buf->tail->used; spin_unlock_irqrestore(&buf->lock, flags); - if (tty->port->low_latency) + if (port->low_latency) flush_to_ldisc(&buf->work); else schedule_work(&buf->work); |