posix-cpu-timers: Remove unnecessary locking around cpu_clock_sample_group
As of e78c3496 ("time, signal: Protect resource use statistics with seqlock") cpu_clock_sample_group no longers needs siglock protection. Unfortunately no one realized it at the time. Remove the extra locking that is for cpu_clock_sample_group and not for cpu_clock_sample. This significantly simplifies the code. Signed-off-by:"Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by:
Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/878skmvdts.fsf@x220.int.ebiederm.org
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a2efdbf4