Messages in this thread Patch in this message | | | From | "Paul E. McKenney" <> | Subject | [PATCH tip/core/rcu 1/4] Documentation: Fix memory-barriers.txt example | Date | Tue, 30 Oct 2012 09:04:33 -0700 |
| |
From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
This commit fixes a broken example of overlapping stores in the Documentation/memory-barriers.txt file.
Reported-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> --- Documentation/memory-barriers.txt | 9 +++++---- 1 files 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}; ========================= -- 1.7.8
| |