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rcu: Clean up flavor-related definitions and comments in rcupdate_wait.h 

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
hifive-unleashed-5.1
Paul E. McKenney 2018-07-07 18:12:26 -07:00
parent aff5f0369e
commit df8561a0d7
1 changed files with 7 additions and 7 deletions
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14
include/linux/rcupdate_wait.h
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@ -33,17 +33,17 @@ do { \
/**
* synchronize_rcu_mult - Wait concurrently for multiple grace periods
* @...: List of call_rcu() functions for the flavors to wait on.
* @...: List of call_rcu() functions for different grace periods to wait on
*
* This macro waits concurrently for multiple flavors of RCU grace periods.
* For example, synchronize_rcu_mult(call_rcu, call_rcu_sched) would wait
* on concurrent RCU and RCU-sched grace periods. Waiting on a give SRCU
* This macro waits concurrently for multiple types of RCU grace periods.
* For example, synchronize_rcu_mult(call_rcu, call_rcu_tasks) would wait
* on concurrent RCU and RCU-tasks grace periods. Waiting on a give SRCU
* domain requires you to write a wrapper function for that SRCU domain's
* call_srcu() function, supplying the corresponding srcu_struct.
*
* If Tiny RCU, tell _wait_rcu_gp() not to bother waiting for RCU
* or RCU-sched, given that anywhere synchronize_rcu_mult() can be called
* is automatically a grace period.
* If Tiny RCU, tell _wait_rcu_gp() does not bother waiting for RCU,
* given that anywhere synchronize_rcu_mult() can be called is automatically
* a grace period.
*/
#define synchronize_rcu_mult(...) \
_wait_rcu_gp(IS_ENABLED(CONFIG_TINY_RCU), __VA_ARGS__)