-
Marco Elver authored
Some memory management calls imply memory barriers that are required to avoid false positives. For example, without the correct instrumentation, we could observe data races of the following variant: T0 | T1 ------------------------+------------------------ | *a = 42; ---+ | kfree(a); | | | | b = kmalloc(..); // b == a <reordered> <-+ | *b = 42; // not a data race! | Therefore, instrument memory barriers in all allocator code currently not being instrumented in a default build. Signed-off-by: Marco Elver <elver@google.com> Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
d37d1fa0