Commits
Paul E. McKenney committed 39c8d313c3c
rcu: Avoid clobbering early boot callbacks When a CPU comes online, it initializes its callback list. This is a bad thing if this is the first time that the CPU has come online and if that CPU has early boot callbacks. This commit therefore avoid initializing the callback list if there are callbacks present, in which case the initial call_rcu() did the initialization for us. Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>