tree 0f32698b8e2e74343af7bcf3a75e46ed49fdc0f2
parent d5cd96851d520e5caff13ddf99e3b2b759ae3b1d
author Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1523557449 -0700
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1526405432 -0700

rcu: Make rcu_start_future_gp() caller select grace period

The rcu_accelerate_cbs() function selects a grace-period target, which
it uses to have rcu_segcblist_accelerate() assign numbers to recently
queued callbacks.  Then it invokes rcu_start_future_gp(), which selects
a grace-period target again, which is a bit pointless.  This commit
therefore changes rcu_start_future_gp() to take the grace-period target as
a parameter, thus avoiding double selection.  This commit also changes
the name of rcu_start_future_gp() to rcu_start_this_gp() to reflect
this change in functionality, and also makes a similar change to the
name of trace_rcu_future_gp().

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Tested-by: Nicholas Piggin <npiggin@gmail.com>