2013/3/19 Andrew Morton <a...@linux-foundation.org>: > On Fri, 15 Mar 2013 17:53:59 +0100 Frederic Weisbecker <fweis...@gmail.com> > wrote: > >> The posix cpu timer expiry time is stored in a union of >> two types: a 64 bits field if we rely on scheduler precise >> accounting, or a cputime_t if we rely on jiffies. >> >> This result in quite some duplicate code and special cases >> to handle the two types. >> >> Just unify this into a single 64 bits field. cputime_t can >> always fit into it. >> > > x86_64 allnoconfig: > > kernel/posix-cpu-timers.c: In function 'posix_cpu_timer_schedule': > kernel/posix-cpu-timers.c:1127: warning: 'now' may be used uninitialized in > this function > > It looks like it's always been buggy, but your switch from `union > cou_time_count' to `unsigned long long' made gcc notice it.
Ok, from a quick view it seems what's missing is a call to cpu_timer_sample_group() to compute the residual time for further call of timer_gettime(). I'll look at it deeper and send you a fix. Thanks. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
