diff options
| author | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-06-23 12:09:52 -0700 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2014-07-09 09:15:31 -0700 |
| commit | 11992c703a1c7d95f5d8759498d7617d4a504819 (patch) | |
| tree | fa2fff5b57493c4912c6b1f8e514fc61f4d792b5 /kernel/rcu/update.c | |
| parent | d860d40327dde251d508a234fa00bd0d90fbb656 (diff) | |
| download | linux-11992c703a1c7d95f5d8759498d7617d4a504819.tar.gz linux-11992c703a1c7d95f5d8759498d7617d4a504819.tar.bz2 linux-11992c703a1c7d95f5d8759498d7617d4a504819.zip | |
rcu: Remove CONFIG_PROVE_RCU_DELAY
The CONFIG_PROVE_RCU_DELAY Kconfig parameter doesn't appear to be very
effective at finding race conditions, so this commit removes it.
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Andi Kleen <ak@linux.intel.com>
[ paulmck: Remove definition and uses as noted by Paul Bolle. ]
Diffstat (limited to 'kernel/rcu/update.c')
| -rw-r--r-- | kernel/rcu/update.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/kernel/rcu/update.c b/kernel/rcu/update.c index bc7883570530..4056d7992a6c 100644 --- a/kernel/rcu/update.c +++ b/kernel/rcu/update.c @@ -90,9 +90,6 @@ void __rcu_read_unlock(void) } else { barrier(); /* critical section before exit code. */ t->rcu_read_lock_nesting = INT_MIN; -#ifdef CONFIG_PROVE_RCU_DELAY - udelay(10); /* Make preemption more probable. */ -#endif /* #ifdef CONFIG_PROVE_RCU_DELAY */ barrier(); /* assign before ->rcu_read_unlock_special load */ if (unlikely(ACCESS_ONCE(t->rcu_read_unlock_special))) rcu_read_unlock_special(t); |