| commit | 6206ab9bab620fc0fbbed30ce20d145b0b3d1840 | [log] [tgz] |
|---|---|---|
| author | Paul E. McKenney <paul.mckenney@linaro.org> | Mon Aug 01 06:22:11 2011 -0700 |
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | Wed Sep 28 21:38:35 2011 -0700 |
| tree | b57912ba9fff6f2deba89c0178d3122bbd1fda6e | |
| parent | 6846c0c54074d47927c90eab4a805115e1ae3292 [diff] |
rcu: Move __rcu_read_unlock()'s barrier() within if-statement We only need to constrain the compiler if we are actually exiting the top-level RCU read-side critical section. This commit therefore moves the first barrier() cal in __rcu_read_unlock() to inside the "if" statement, thus avoiding needless register flushes for inner rcu_read_unlock() calls. Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>