perf sched: Update use of pthread mutex

Switch to the use of mutex wrappers that provide better error
checking. Update cmd_sched so that we always explicitly destroy the
mutexes.

Signed-off-by: Ian Rogers <[email protected]>
Reviewed-by: Adrian Hunter <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Alexandre Truong <[email protected]>
Cc: Alexey Bayduraev <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: Andrii Nakryiko <[email protected]>
Cc: André Almeida <[email protected]>
Cc: Athira Jajeev <[email protected]>
Cc: Christophe JAILLET <[email protected]>
Cc: Colin Ian King <[email protected]>
Cc: Dario Petrillo <[email protected]>
Cc: Darren Hart <[email protected]>
Cc: Dave Marchevsky <[email protected]>
Cc: Davidlohr Bueso <[email protected]>
Cc: Fangrui Song <[email protected]>
Cc: Hewenliang <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: James Clark <[email protected]>
Cc: Jason Wang <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Kajol Jain <[email protected]>
Cc: Kim Phillips <[email protected]>
Cc: Leo Yan <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Martin Liška <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Nathan Chancellor <[email protected]>
Cc: Nick Desaulniers <[email protected]>
Cc: Pavithra Gurushankar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Quentin Monnet <[email protected]>
Cc: Ravi Bangoria <[email protected]>
Cc: Remi Bernon <[email protected]>
Cc: Riccardo Mancini <[email protected]>
Cc: Song Liu <[email protected]>
Cc: Stephane Eranian <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Thomas Richter <[email protected]>
Cc: Tom Rix <[email protected]>
Cc: Weiguo Li <[email protected]>
Cc: Wenyu Liu <[email protected]>
Cc: William Cohen <[email protected]>
Cc: Zechuan Chen <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: yaowenbin <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

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