Re: [PATCH v2] sched/cputime: fix clock_nanosleep/clock_gettime inconsistency
From: Peter Zijlstra
Date: Wed Nov 12 2014 - 11:56:22 EST
On Wed, Nov 12, 2014 at 04:58:44PM +0100, Stanislaw Gruszka wrote:
> Commit d670ec13178d0 "posix-cpu-timers: Cure SMP wobbles" fixes one glibc
> test case in cost of breaking another one. After that commit, calling
> clock_nanosleep(TIMER_ABSTIME, X) and then clock_gettime(&Y) can result
> of Y time being smaller than X time.
>
> Below is full reproducer (tst-cpuclock2.c) :
>
> /* Parameters for the Linux kernel ABI for CPU clocks. */
> ((~(clockid_t) (pid) << 3) | (clockid_t) (clock))
>
You lost all the #include and #define stmts there, restored them from
the previous posting.
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