X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Documentation%2Fatomic_ops.txt;h=4ef245010457fc9301f21f6e78f2b1fc16c1d014;hb=b66e1f11ebc429569a3784aaf64123633d9e3ed1;hp=f20c10c2858fc7c60f3003a77c905bf108dfddd7;hpb=54e840dd5021ae03c5d2b4158b191bb67f584b75;p=linux-2.6

diff --git a/Documentation/atomic_ops.txt b/Documentation/atomic_ops.txt
index f20c10c285..4ef2450104 100644
--- a/Documentation/atomic_ops.txt
+++ b/Documentation/atomic_ops.txt
@@ -186,7 +186,8 @@ If the atomic value v is not equal to u, this function adds a to v, and
 returns non zero. If v is equal to u then it returns zero. This is done as
 an atomic operation.
 
-atomic_add_unless requires explicit memory barriers around the operation.
+atomic_add_unless requires explicit memory barriers around the operation
+unless it fails (returns 0).
 
 atomic_inc_not_zero, equivalent to atomic_add_unless(v, 1, 0)