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| author |   Marco Elver <elver@google.com> | 2020-02-11 17:04:22 +0100 |
|---|---|---|
| committer |   Ingo Molnar <mingo@kernel.org> | 2020-03-21 09:44:08 +0100 |
| commit | 81af89e15862909881ff010a0adb67148487e88a (patch) | |
| tree | d2cc4b1598e5136a418154244fbbff9997fde592 /init/init_task.c | |
| parent | kcsan: Introduce kcsan_value_change type (diff) | |
| download | linux-dev-81af89e15862909881ff010a0adb67148487e88a.tar.xz linux-dev-81af89e15862909881ff010a0adb67148487e88a.zip | |
kcsan: Add kcsan_set_access_mask() support
When setting up an access mask with kcsan_set_access_mask(), KCSAN will
only report races if concurrent changes to bits set in access_mask are
observed. Conveying access_mask via a separate call avoids introducing
overhead in the common-case fast-path.
Acked-by: John Hubbard <jhubbard@nvidia.com>
Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'init/init_task.c')
| -rw-r--r-- | init/init_task.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/init/init_task.c b/init/init_task.c index 2b4fe98b0f09..096191d177d5 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -167,6 +167,7 @@ struct task_struct init_task .atomic_next = 0, .atomic_nest_count = 0, .in_flat_atomic = false, + .access_mask = 0, }, #endif #ifdef CONFIG_TRACE_IRQFLAGS |