| commit | 7082a29c22ac0ab276b346f2a5c1d24a2102f158 | [log] [tgz] |
|---|---|---|
| author | Vineet Gupta <vgupta@synopsys.com> | Mon Dec 15 18:42:24 2014 +0530 |
| committer | Vineet Gupta <vgupta@synopsys.com> | Mon Feb 02 17:08:37 2015 +0530 |
| tree | 142b459ce955e962cb486abef8f08af813f351a5 | |
| parent | 98edfab4c10343bd3ba1ca47d000544b9f964886 [diff] |
ARC: use ACCESS_ONCE in cmpxchg loop Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c index 20ebb60..6a400b1 100644 --- a/arch/arc/kernel/smp.c +++ b/arch/arc/kernel/smp.c
@@ -221,7 +221,7 @@ * and read back old value */ do { - new = old = *ipi_data_ptr; + new = old = ACCESS_ONCE(*ipi_data_ptr); new |= 1U << msg; } while (cmpxchg(ipi_data_ptr, old, new) != old);