rcu: Make rcu_seq_diff() more exact

Browse source

The current implementatation of rcu_seq_diff() follows tradition in
providing a rough-and-ready approximation of the number of elapsed grace
periods between the two rcu_seq values.  However, this difference is
used to flag RCU-failure "near misses", which can be a valuable debugging
aid, so more exactitude would be an improvement.  This commit therefore
improves the accuracy of rcu_seq_diff().

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

...

This commit is contained in:

Paul E. McKenney 2018-06-09 01:22:20 -07:00

parent 264d4f88ad

commit 2ee5aca546

1 changed files with 14 additions and 1 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

15

kernel/rcu/rcu.h

View file