locking/csd-lock: Switch from sched_clock() to ktime_get_mono_fast_ns()
Currently, the CONFIG_CSD_LOCK_WAIT_DEBUG code uses sched_clock()
to check for excessive CSD-lock wait times. This works, but does not
guarantee monotonic timestamps. Therefore, switch from sched_clock()
to ktime_get_mono_fast_ns(), which does guarantee monotonic timestamps,
at least in the absence of calls from NMI handlers, which are not involved
in this code path.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Neeraj Upadhyay <neeraj.upadhyay@kernel.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Leonardo Bras <leobras@redhat.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "Peter Zijlstra (Intel)" <peterz@infradead.org>
1 file changed
