The following commit has been merged into the locking/kcsan branch of tip:
Commit-ID: eba9c444d34c9f10cbb463329c2c8e14f2adff25
Gitweb:
https://git.kernel.org/tip/eba9c444d34c9f10cbb463329c2c8e14f2adff25
Author: Ingo Molnar <mi...@kernel.org>
AuthorDate: Mon, 13 Apr 2020 11:03:05 +02:00
Committer: Paul E. McKenney <paul...@kernel.org>
CommitterDate: Mon, 27 Apr 2020 11:10:02 -07:00
Improve KCSAN documentation a bit
This commit simplifies and clarifies the highest level KCSAN Kconfig
help text.
Signed-off-by: Ingo Molnar <mi...@kernel.org>
Signed-off-by: Paul E. McKenney <paul...@kernel.org>
---
lib/Kconfig.kcsan | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)
diff --git a/lib/Kconfig.kcsan b/lib/Kconfig.kcsan
index 0f1447f..689b6b8 100644
--- a/lib/Kconfig.kcsan
+++ b/lib/Kconfig.kcsan
@@ -4,17 +4,18 @@ config HAVE_ARCH_KCSAN
bool
menuconfig KCSAN
- bool "KCSAN: dynamic race detector"
+ bool "KCSAN: dynamic data race detector"
depends on HAVE_ARCH_KCSAN && DEBUG_KERNEL && !KASAN
select STACKTRACE
help
- The Kernel Concurrency Sanitizer (KCSAN) is a dynamic race detector,
- which relies on compile-time instrumentation, and uses a
- watchpoint-based sampling approach to detect races.
+ The Kernel Concurrency Sanitizer (KCSAN) is a dynamic
+ data-race detector that relies on compile-time instrumentation.
+ KCSAN uses a watchpoint-based sampling approach to detect races.
- KCSAN's primary purpose is to detect data races. KCSAN can also be
- used to check properties, with the help of provided assertions, of
- concurrent code where bugs do not manifest as data races.
+ While KCSAN's primary purpose is to detect data races, it
+ also provides assertions to check data access constraints.
+ These assertions can expose bugs that do not manifest as
+ data races.
See <file:Documentation/dev-tools/kcsan.rst> for more details.
