On Wed, 2 May 2007 11:17:00 -0400
Dave Johnson <[email protected]> wrote:
>
> I have two processes with the same tty open, one opens blocking and
> one opens nonblocking.
>
> If the blocking process blocks doing a write (due to flow control,
> just going to fast, etc...) the nonblocking process will also block
> when it writes until the blocking process unblocks.
>
> This seems to occur because do_tty_write() isn't checking for
> O_NONBLOCK when taking the tty's write mutex.
>
>
> Signed-off-by: Dave Johnson <[email protected]>
Acked-by: Alan Cox <[email protected]>
Looks fine to me.
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