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| author | Paul E. McKenney <paul.mckenney@linaro.org> | 2012-10-29 12:52:56 +0100 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@linux.vnet.ibm.com> | 2012-11-13 23:08:34 +0100 |
| commit | 351573a86d0ef17cbba1c5436706602692781bfe (patch) | |
| tree | 66c1665ad4e23f7278cb268e7355fb59467f97e5 /kernel/rcutiny.c | |
| parent | rcu: Clarify memory-ordering properties of grace-period primitives (diff) | |
| download | linux-351573a86d0ef17cbba1c5436706602692781bfe.tar.xz linux-351573a86d0ef17cbba1c5436706602692781bfe.zip | |
rcu: Fix TINY_RCU rcu_is_cpu_rrupt_from_idle check
The rcu_is_cpu_rrupt_from_idle() needs to allow for one interrupt level
from the idle loop, but TINY_RCU checks for a call from the idle loop
itself. This commit fixes this issue.
Reported-by: Josh Triplett <josh@joshtriplett.org>
Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Diffstat (limited to 'kernel/rcutiny.c')
| -rw-r--r-- | kernel/rcutiny.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/rcutiny.c b/kernel/rcutiny.c index e4c6a598d6f7..e7dce58f9c2a 100644 --- a/kernel/rcutiny.c +++ b/kernel/rcutiny.c @@ -195,7 +195,7 @@ EXPORT_SYMBOL(rcu_is_cpu_idle); */ int rcu_is_cpu_rrupt_from_idle(void) { - return rcu_dynticks_nesting <= 0; + return rcu_dynticks_nesting <= 1; } /* |