Commit-ID: f191eec58803e1e16c3421638cdcc9195c425851
Gitweb: http://git.kernel.org/tip/f191eec58803e1e16c3421638cdcc9195c425851
Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
AuthorDate: Wed, 3 Oct 2012 10:28:30 -0700
Committer: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
CommitDate: Tue, 23 Oct 2012 14:44:46 -0700
Documentation: Fix memory-barriers.txt example
This commit fixes a broken example of overlapping stores in the
Documentation/memory-barriers.txt file.
Reported-by: Nikunj A Dadhania <nikunj@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
---
Documentation/memory-barriers.txt | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index 2759f7c..3c4e1b3 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -251,12 +251,13 @@ And there are a number of things that _must_ or _must_not_ be assumed:
And for:
- *A = X; Y = *A;
+ *A = X; *(A + 4) = Y;
- we may get either of:
+ we may get any of:
- STORE *A = X; Y = LOAD *A;
- STORE *A = Y = X;
+ STORE *A = X; STORE *(A + 4) = Y;
+ STORE *(A + 4) = Y; STORE *A = X;
+ STORE {*A, *(A + 4) } = {X, Y};
=========================
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