[Cbe-oss-dev] [patch 6/6] mtd/ps3vram: Use msleep in waits
Arnd Bergmann
arnd at arndb.de
Thu Jan 8 06:25:23 EST 2009
On Tuesday 06 January 2009, Geoff Levand wrote:
> do {
> - if (notify[3] == 0)
> + if (!notify[3])
> return 0;
> -
> - if (timeout_ms)
> - udelay(1);
> + msleep(1);
> } while (timeout_ms--);
>
I guess it's not really important, but this function might wait substantially
longer than requested. If you have CONFIG_HZ=100, msleep(1) will sleep for
at least 10 miliseconds. The correct way to sleep for up to a given amount
of time is to calculate the end time in jiffies, and use time_before() in
the loop condition.
Arnd <><
More information about the cbe-oss-dev
mailing list