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47d631af58
linux/kernel/rcu
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Paul E. McKenney 47d631af58 rcu: Make RCU able to tolerate undefined CONFIG_RCU_FANOUT_LEAF 
This commit introduces an RCU_FANOUT_LEAF C-preprocessor macro so
that RCU will build even when CONFIG_RCU_FANOUT_LEAF is undefined.
The RCU_FANOUT_LEAF macro is set to the value of CONFIG_RCU_FANOUT_LEAF
when defined, otherwise it is set to 32 for 32-bit systems and 64 for
64-bit systems.  This commit then makes CONFIG_RCU_FANOUT_LEAF depend
on CONFIG_RCU_EXPERT, so that Kconfig users won't be asked about
CONFIG_RCU_FANOUT_LEAF unless they want to be.

Reported-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Pranith Kumar <bobby.prani@gmail.com>
2015-05-27 12:59:05 -07:00
..
Makefile rcu: Make SRCU optional by using CONFIG_SRCU 2015-01-06 11:04:29 -08:00
rcu.h tiny_rcu: Directly force QS when call_rcu_[bh|sched]() on idle_task 2015-01-06 11:01:12 -08:00
rcutorture.c rcu: Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE() 2015-05-27 12:56:15 -07:00
srcu.c rcu: Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE() 2015-05-27 12:56:15 -07:00
tiny_plugin.h rcu: Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE() 2015-05-27 12:56:15 -07:00
tiny.c rcu: Remove fastpath from __rcu_process_callbacks() 2015-02-26 12:11:53 -08:00
tree_plugin.h rcu: Make RCU able to tolerate undefined CONFIG_RCU_FANOUT_LEAF 2015-05-27 12:59:05 -07:00
tree_trace.c rcu: Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE() 2015-05-27 12:56:15 -07:00
tree.c rcu: Make RCU able to tolerate undefined CONFIG_RCU_FANOUT_LEAF 2015-05-27 12:59:05 -07:00
tree.h rcu: Make RCU able to tolerate undefined CONFIG_RCU_FANOUT_LEAF 2015-05-27 12:59:05 -07:00
update.c rcu: Convert ACCESS_ONCE() to READ_ONCE() and WRITE_ONCE() 2015-05-27 12:56:15 -07:00