rcutorture: Correctly handle grace-period sequence wrap

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The new ->gq_seq grace-period sequence numbers must be shifted down,
which give artifacts when these numbers wrap.  This commit therefore
enables rcutorture and rcuperf to handle grace-period sequence numbers
even if they do wrap.  It does this by allowing a special subtraction
function to be specified, and this function subtracts before shifting.

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

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This commit is contained in:

Paul E. McKenney 2018-05-15 15:24:41 -07:00

parent 2e3e5e5501

commit d72193123c

4 changed files with 41 additions and 11 deletions

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9

kernel/rcu/rcu.h

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18

kernel/rcu/rcuperf.c

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19

kernel/rcu/rcutorture.c

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6

kernel/rcu/tree.c

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