Merge branch 'kcsan' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux...

Pull KCSAN updates from Paul E. McKenney:

 - improve comments
 - introduce CONFIG_KCSAN_STRICT (which RCU uses)
 - optimize use of get_ctx() by kcsan_found_watchpoint()
 - rework atomic.h into permissive.h
 - add the ability to ignore writes that change only one bit of a given data-racy variable.

Signed-off-by: Ingo Molnar <mingo@kernel.org>