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TTY: switch tty_flip_buffer_push

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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>
This commit is contained in:
Jiri Slaby
2013-01-03 15:53:06 +01:00
committed by Greg Kroah-Hartman
parent d6c53c0e9b
commit 2e124b4a39
146 changed files with 446 additions and 988 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/s390/char/con3215.c
View File

@@ -413,7 +413,7 @@ static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm,
case CTRLCHAR_CTRL:
tty_insert_flip_char(&raw->port, cchar,
TTY_NORMAL);
tty_flip_buffer_push(tty);
tty_flip_buffer_push(&raw->port);
break;
case CTRLCHAR_NONE:
@@ -427,7 +427,7 @@ static void raw3215_irq(struct ccw_device *cdev, unsigned long intparm,
count -= 2;
tty_insert_flip_string(&raw->port, raw->inbuf,
count);
tty_flip_buffer_push(tty);
tty_flip_buffer_push(&raw->port);
break;
}
} else if (req->type == RAW3215_WRITE) {

4
drivers/s390/char/sclp_tty.c
View File

@@ -343,7 +343,7 @@ sclp_tty_input(unsigned char* buf, unsigned int count)
break;
case CTRLCHAR_CTRL:
tty_insert_flip_char(&sclp_port, cchar, TTY_NORMAL);
tty_flip_buffer_push(tty);
tty_flip_buffer_push(&sclp_port);
break;
case CTRLCHAR_NONE:
/* send (normal) input to line discipline */
@@ -355,7 +355,7 @@ sclp_tty_input(unsigned char* buf, unsigned int count)
tty_insert_flip_char(&sclp_port, '\n', TTY_NORMAL);
} else
tty_insert_flip_string(&sclp_port, buf, count - 2);
tty_flip_buffer_push(tty);
tty_flip_buffer_push(&sclp_port);
break;
}
tty_kref_put(tty);

8
drivers/s390/char/sclp_vt220.c
View File

@@ -461,14 +461,9 @@ sclp_vt220_write(struct tty_struct *tty, const unsigned char *buf, int count)
static void
sclp_vt220_receiver_fn(struct evbuf_header *evbuf)
{
struct tty_struct *tty = tty_port_tty_get(&sclp_vt220_port);
char *buffer;
unsigned int count;
/* Ignore input if device is not open */
if (tty == NULL)
return;
buffer = (char *) ((addr_t) evbuf + sizeof(struct evbuf_header));
count = evbuf->length - sizeof(struct evbuf_header);
@@ -481,10 +476,9 @@ sclp_vt220_receiver_fn(struct evbuf_header *evbuf)
buffer++;
count--;
tty_insert_flip_string(&sclp_vt220_port, buffer, count);
tty_flip_buffer_push(tty);
tty_flip_buffer_push(&sclp_vt220_port);
break;
}
tty_kref_put(tty);
}
/*