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rcu: Abstract extended quiescent state determination

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This commit is the fourth step towards full abstraction of all accesses
to the ->dynticks counter, implementing previously open-coded checks and
comparisons in new rcu_dynticks_in_eqs() and rcu_dynticks_in_eqs_since()
functions.  This abstraction will ease changes to the ->dynticks counter
operation.

Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Paul E. McKenney 2016-11-02 17:25:06 -07:00
parent 2625d469ba
commit 02a5c550b2
6 changed files with 51 additions and 19 deletions
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6
include/linux/rcutiny.h
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@ -27,6 +27,12 @@
#include <linux/cache.h>
struct rcu_dynticks;
static inline int rcu_dynticks_snap(struct rcu_dynticks *rdtp)
{
return 0;
}
static inline unsigned long get_state_synchronize_rcu(void)
{
return 0;