srcu: Improve rcu_seq grace-period-counter abstraction

Browse source

The expedited grace-period code contains several open-coded shifts
know the format of an rcu_seq grace-period counter, which is not
particularly good style.  This commit therefore creates a new
rcu_seq_ctr() function that extracts the counter portion of the
counter, and an rcu_seq_state() function that extracts the low-order
state bit.  This commit prepares for SRCU callback parallelization,
which will require two state bits.

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

...

This commit is contained in:

Paul E. McKenney 2017-03-21 07:28:14 -07:00

parent 91e27c356c

commit 031aeee000

2 changed files with 29 additions and 9 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

29

kernel/rcu/rcu.h

View file

9

kernel/rcu/tree_exp.h

View file