From: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Date: Mon, 11 Nov 2013 17:59:34 +0000 (-0800)
Subject: rcu: Add an RCU_INITIALIZER for global RCU-protected pointers
X-Git-Tag: v3.14-rc1~174^2^2^4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=462225ae47d7175f886281d8a91708550cd5178c;p=pandora-kernel.git

rcu: Add an RCU_INITIALIZER for global RCU-protected pointers

There is currently no way to initialize a global RCU-protected pointer
without either putting up with sparse complaints or open-coding an
obscure cast.  This commit therefore creates RCU_INITIALIZER(), which
is intended to be used as follows:

	struct foo __rcu *p = RCU_INITIALIZER(&my_rcu_structure);

This commit also applies RCU_INITIALIZER() to eliminate repeated
open-coded obscure casts in __rcu_assign_pointer(), RCU_INIT_POINTER(),
and RCU_POINTER_INITIALIZER().  This commit also inlines
__rcu_assign_pointer() into its only caller, rcu_assign_pointer().

Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
---

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