rcu: Make ->dynticks_nesting be a simple counter

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Now that ->dynticks_nesting counts only process-level dyntick-idle
entry and exit, there is no need for the elaborate segmented counter
with its guard fields and overflow checking.  This commit therefore
makes ->dynticks_nesting be a simple counter.

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

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This commit is contained in:

Paul E. McKenney 2017-10-03 14:43:40 -07:00

parent 58721f5da4

commit 51a1fd30f1

3 changed files with 21 additions and 47 deletions

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27

kernel/rcu/rcu.h

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40

kernel/rcu/tree.c

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1

kernel/rcu/tree.h

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