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| author | Jiri Slaby <jirislaby@gmail.com> | 2007-10-18 03:06:19 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-18 14:37:26 -0700 |
| commit | c43422053bea7a5ce09f18d0c50a606fe1a549f4 (patch) | |
| tree | ee04c7bf4f6009f026c704db97032af370bcc19f /drivers/char/moxa.c | |
| parent | fc37449f7959aeedc2d38b183468ae73c9166fb6 (diff) | |
| download | linux-3.10-c43422053bea7a5ce09f18d0c50a606fe1a549f4.tar.gz linux-3.10-c43422053bea7a5ce09f18d0c50a606fe1a549f4.tar.bz2 linux-3.10-c43422053bea7a5ce09f18d0c50a606fe1a549f4.zip | |
Char: moxa, fix and optimise empty timer
moxa, fix and optimise empty timer
don't wait and delete empty timer in empty timer function. Also fire next
empty timer at rounded jiffies to save power.
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/char/moxa.c')
| -rw-r--r-- | drivers/char/moxa.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c index ed76f0a127f..5000b3bd091 100644 --- a/drivers/char/moxa.c +++ b/drivers/char/moxa.c @@ -1040,14 +1040,14 @@ static void check_xmit_empty(unsigned long data) struct moxa_port *ch; ch = (struct moxa_port *) data; - del_timer_sync(&moxa_ports[ch->port].emptyTimer); if (ch->tty && (ch->statusflags & EMPTYWAIT)) { if (MoxaPortTxQueue(ch->port) == 0) { ch->statusflags &= ~EMPTYWAIT; tty_wakeup(ch->tty); return; } - mod_timer(&moxa_ports[ch->port].emptyTimer, jiffies + HZ); + mod_timer(&moxa_ports[ch->port].emptyTimer, + round_jiffies(jiffies + HZ)); } else ch->statusflags &= ~EMPTYWAIT; } |