commit e6942b7de2dfe44ebde9bae57dadece5abca9de8
author Peter Zijlstra <peterz@infradead.org> Wed Apr 23 19:32:50 2014 +0200
committer Thomas Gleixner <tglx@linutronix.de> Mon Jul 27 14:06:24 2015 +0200
tree b235317c5f6d200bcc25b43a406237a0d15319cf
parent 2957c035395e492463d7f589af9dd32388967bbb

atomic: Provide atomic_{or,xor,and}

Implement atomic logic ops -- atomic_{or,xor,and}.

These will replace the atomic_{set,clear}_mask functions that are
available on some archs.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

lib/atomic64.c

diff --git a/lib/atomic64.c b/lib/atomic64.c
index 1298c05e..2886eba 100644
--- a/lib/atomic64.c
+++ b/lib/atomic64.c
@@ -102,6 +102,9 @@
 
 ATOMIC64_OPS(add, +=)
 ATOMIC64_OPS(sub, -=)
+ATOMIC64_OP(and, &=)
+ATOMIC64_OP(or, |=)
+ATOMIC64_OP(xor, ^=)
 
 #undef ATOMIC64_OPS
 #undef ATOMIC64_OP_RETURN