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[PATCH] uml: Add throttling to console driver

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This patch adds support for throttling and unthrottling input when the tty
driver can't handle it.

Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Jeff Dike
2006-01-06 00:18:58 -08:00
committed by Linus Torvalds
parent 9159c9dfff
commit e4dcee8099
6 changed files with 63 additions and 14 deletions
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26
arch/um/drivers/chan_kern.c
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@ -312,6 +312,32 @@ void close_chan(struct list_head *chans, int delay_free_irq)
}
}
void deactivate_chan(struct list_head *chans, int irq)
{
struct list_head *ele;
struct chan *chan;
list_for_each(ele, chans) {
chan = list_entry(ele, struct chan, list);
if(chan->enabled && chan->input)
deactivate_fd(chan->fd, irq);
}
}
void reactivate_chan(struct list_head *chans, int irq)
{
struct list_head *ele;
struct chan *chan;
list_for_each(ele, chans) {
chan = list_entry(ele, struct chan, list);
if(chan->enabled && chan->input)
reactivate_fd(chan->fd, irq);
}
}
int write_chan(struct list_head *chans, const char *buf, int len,
int write_irq)
{