tree 6c4bc221ebb6b90f08992e237a66a243057f214f
parent bf54be03ff092951bd756ae7cca2abcbc0a2e31a
author Byungchul Park <byungchul.park@lge.com> 1519621896 +0900
committer Paul E. McKenney <paulmck@linux.vnet.ibm.com> 1519669266 -0800

rcu: Inline rcu_preempt_do_callback() into its sole caller

The rcu_preempt_do_callbacks() function was introduced in commit
09223371dea(rcu: Use softirq to address performance regression), where it
was necessary to handle kernel builds both containing and not containing
RCU-preempt.  Since then, various changes (most notably f8b7fc6b51
("rcu: use softirq instead of kthreads except when RCU_BOOST=y")) have
resulted in this function being invoked only from rcu_kthread_do_work(),
which is present only in kernels containing RCU-preempt, which in turn
means that the rcu_preempt_do_callbacks() function is no longer needed.

This commit therefore inlines rcu_preempt_do_callbacks() into its
sole remaining caller and also removes the rcu_state_p and rcu_data_p
indirection for added clarity.

Signed-off-by: Byungchul Park <byungchul.park@lge.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
[ paulmck: Remove the rcu_state_p and rcu_data_p indirection. ]