[lkml]   [2006]   [Dec]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Subjecttty->low_latency + irq context

* tty_flip_buffer_push - terminal
* @tty: tty to push
* Queue a push of the terminal flip buffers to the line discipline. This
* function must not be called from IRQ context if tty->low_latency is set.

But some drivers (mxser, nozomi, hvsi...) sets low_latency to 1 in _open and
calls tty_flip_buffer_push in isr or in functions, which are called from isr.
Is the comment correct or the drivers?

Moreover, hvsi says:
tty->low_latency = 1; /* avoid throttle/tty_flip_buffer_push race */

-- Jiri Slaby
faculty of informatics, masaryk university, brno, cz
e-mail: jirislaby gmail com, gpg pubkey fingerprint:
B674 9967 0407 CE62 ACC8 22A0 32CC 55C3 39D4 7A7E
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2006-12-26 01:13    [W:0.091 / U:10.652 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site