diff options
Diffstat (limited to 'tools/memory-model/Documentation/litmus-tests.txt')
| -rw-r--r-- | tools/memory-model/Documentation/litmus-tests.txt | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/tools/memory-model/Documentation/litmus-tests.txt b/tools/memory-model/Documentation/litmus-tests.txt index 289a38d626dd..2f840dcd15cf 100644 --- a/tools/memory-model/Documentation/litmus-tests.txt +++ b/tools/memory-model/Documentation/litmus-tests.txt @@ -726,8 +726,12 @@ P0()'s line 10 initializes "x" to the value 1 then line 11 links to "x" from "y", replacing "z". P1()'s line 20 loads a pointer from "y", and line 21 dereferences that -pointer. The RCU read-side critical section spanning lines 19-22 is -just for show in this example. +pointer. The RCU read-side critical section spanning lines 19-22 is just +for show in this example. Note that the address used for line 21's load +depends on (in this case, "is exactly the same as") the value loaded by +line 20. This is an example of what is called an "address dependency". +This particular address dependency extends from the load on line 20 to the +load on line 21. Address dependencies provide a weak form of ordering. Running this test results in the following: |