kernel_optimize_test/kernel/kcsan
Marco Elver 61d56d7aa5 kcsan: Disable branch tracing in core runtime
Disable branch tracing in core KCSAN runtime if branches are being
traced (TRACE_BRANCH_PROFILING). This it to avoid its performance
impact, but also avoid recursion in case KCSAN is enabled for the branch
tracing runtime.

The latter had already been a problem for KASAN:
https://lore.kernel.org/lkml/CANpmjNOeXmD5E3O50Z3MjkiuCYaYOPyi+1rq=GZvEKwBvLR0Ug@mail.gmail.com/

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2020-06-29 12:04:48 -07:00
..
atomic.h kcsan: Remove existing special atomic rules 2020-06-29 12:04:48 -07:00
core.c kcsan: Silence -Wmissing-prototypes warning with W=1 2020-06-29 12:04:48 -07:00
debugfs.c kcsan: Use GFP_ATOMIC under spin lock 2020-04-27 11:10:10 -07:00
encoding.h kcsan: Prefer __always_inline for fast-path 2020-03-21 09:40:19 +01:00
kcsan-test.c kcsan: Add jiffies test to test suite 2020-06-29 12:04:48 -07:00
kcsan.h kcsan: Avoid blocking producers in prepare_report() 2020-04-13 17:18:11 -07:00
Makefile kcsan: Disable branch tracing in core runtime 2020-06-29 12:04:48 -07:00
report.c kcsan: Make reporting aware of KCSAN tests 2020-04-13 17:18:16 -07:00
selftest.c kcsan: Rename test.c to selftest.c 2020-06-29 12:04:48 -07:00