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3 Commits

Author SHA1 Message Date
Teodora Baluta bd73a7f5cd rcu: Remove "extern" from function declarations in kernel/rcu/rcu.h 
Function prototypes don't need to have the "extern" keyword since this
is the default behavior. Its explicit use is redundant.  This commit
therefore removes them.

Signed-off-by: Teodora Baluta <teobaluta@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
 2013-12-12 12:34:17 -08:00
Paul E. McKenney 24ef659a85 rcu: Provide better diagnostics for blocking in RCU callback functions 
Currently blocking in an RCU callback function will result in
"scheduling while atomic", which could be triggered for any number
of reasons.  To aid debugging, this patch introduces a rcu_callback_map
that is used to tie the inappropriate voluntary context switch back
to the fact that the function is being invoked from within a callback.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
 2013-12-09 15:12:39 -08:00
Paul E. McKenney 4102adab91 rcu: Move RCU-related source code to kernel/rcu directory 
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
 2013-10-15 12:53:31 -07:00