On Sun, 2016-09-18 at 00:40 +0300, Konstantin Khlebnikov wrote:
> #define printk_periodic(period, fmt, ...)
> ({
> static unsigned long __prev __read_mostly = INITIAL_JIFFIES - (period);
> unsigned long __now = jiffies;
> bool __print = !time_in_range_open(__now, __prev, __prev + (period));
>
> if (__print) {
> __prev = __now;
> printk(fmt, ##__VA_ARGS__);
> }
> unlikely(__print);
> })
printk_periodic reads like a thing that would create a
thread to printk a message every period.
And trivially, period should be copied to a temporary
and not be reused (use your choice of # of underscores)
unsigned long _period = period;
unsigned long _now = now;
static unsigned long _prev __read_mostly = etc...
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@xxxxxxxxx. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>