rcu: Record ->gp_state for both phases of grace-period initialization

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Grace-period initialization first processes any recent CPU-hotplug
operations, and then initializes state for the new grace period.  These
two phases of initialization are currently not distinguished in debug
prints, but the distinction is valuable in a number of debug situations.
This commit therefore introduces two new values for ->gp_state,
RCU_GP_ONOFF and RCU_GP_INIT, in order to make this distinction.

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

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Paul E. McKenney 2018-05-15 15:47:30 -07:00

parent 5773894231

commit fea3f222d3

2 changed files with 10 additions and 4 deletions

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kernel/rcu/tree.c

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12

kernel/rcu/tree.h

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