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Commit 1bb5f9b9 authored by Paul E. McKenney's avatar Paul E. McKenney
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rcu/nocb: Use separate flag to indicate disabled ->cblist



NULLing the RCU_NEXT_TAIL pointer was a clever way to save a byte, but
forward-progress considerations would require that this pointer be both
NULL and non-NULL, which, absent a quantum-computer port of the Linux
kernel, simply won't happen.  This commit therefore creates as separate
->enabled flag to replace the current NULL checks.

[ paulmck: Add include files per 0day test robot and -next. ]
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.ibm.com>
parent 18cd8c93
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