rcu: Report error for bad rcu_nocbs= parameter values

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This commit prints a console message when cpulist_parse() reports a
bad list of CPUs, and sets all CPUs' bits in that case.  The reason for
setting all CPUs' bits is that this is the safe(r) choice for real-time
workloads, which would normally be the ones using the rcu_nocbs= kernel
boot parameter.  Either way, later RCU console log messages list the
actual set of CPUs whose RCU callbacks will be offloaded.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>

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Paul E. McKenney 2019-03-06 14:47:56 -08:00

parent da8739f23f

commit 497e42600b

1 changed files with 10 additions and 2 deletions

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kernel/rcu/tree_plugin.h

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