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| author | Ingo Molnar <mingo@kernel.org> | 2019-11-19 21:54:39 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-11-19 21:56:28 +0300 |
| commit | 8e1d58ae0c8d4af9ab0141f7e8a9ca95720df01c (patch) | |
| tree | 7b09138ee1aca2825f86f5534bfd2caad83190ec /init/init_task.c | |
| parent | af42d3466bdc8f39806b26f593604fdc54140bcb (diff) | |
| parent | 40d04110f87940b6a03bf0aa19cd29e84f465f20 (diff) | |
| download | linux-8e1d58ae0c8d4af9ab0141f7e8a9ca95720df01c.tar.xz | |
Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/kcsan
Pull the KCSAN subsystem from Paul E. McKenney:
"This pull request contains base kernel concurrency sanitizer
(KCSAN) enablement for x86, courtesy of Marco Elver. KCSAN is a
sampling watchpoint-based data-race detector, and is documented in
Documentation/dev-tools/kcsan.rst. KCSAN was announced in September,
and much feedback has since been incorporated:
http://lkml.kernel.org/r/CANpmjNPJ_bHjfLZCAPV23AXFfiPiyXXqqu72n6TgWzb2Gnu1eA@mail.gmail.com
The data races located thus far have resulted in a number of fixes:
https://github.com/google/ktsan/wiki/KCSAN#upstream-fixes-of-data-races-found-by-kcsan
Additional information may be found here:
https://lore.kernel.org/lkml/20191114180303.66955-1-elver@google.com/
"
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'init/init_task.c')
| -rw-r--r-- | init/init_task.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/init/init_task.c b/init/init_task.c index 9e5cbe5eab7b..2b4fe98b0f09 100644 --- a/init/init_task.c +++ b/init/init_task.c @@ -161,6 +161,14 @@ struct task_struct init_task #ifdef CONFIG_KASAN .kasan_depth = 1, #endif +#ifdef CONFIG_KCSAN + .kcsan_ctx = { + .disable_count = 0, + .atomic_next = 0, + .atomic_nest_count = 0, + .in_flat_atomic = false, + }, +#endif #ifdef CONFIG_TRACE_IRQFLAGS .softirqs_enabled = 1, #endif |