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rcu: Fix missing TICK_DEP_MASK_RCU_EXP dependency check
[ Upstream commit db7b464 ] This commit adds checks for the TICK_DEP_MASK_RCU_EXP bit, thus enabling RCU expedited grace periods to actually force-enable scheduling-clock interrupts on holdout CPUs. Fixes: df1e849 ("rcu: Enable tick for nohz_full CPUs slow to provide expedited QS") Signed-off-by: Zqiang <qiang1.zhang@intel.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Anna-Maria Behnsen <anna-maria@linutronix.de> Acked-by: Frederic Weisbecker <frederic@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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