tree 363127aced66530e6c6808a55462e10c3e8fedb8
parent 944ce9af4767ca085d465e4add69df11a8faa9ef
author Lai Jiangshan <laijs@cn.fujitsu.com> 1330363690 -0800
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1335808102 -0700

rcu: Improve SRCU's wait_idx() comments

The safety of SRCU is provided byy wait_idx() rather than flipping.
The flipping actually prevents starvation.

This commit therefore updates the comments to more accurately and
precisely describe what is going on.

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>