linux/include/asm-generic
Marco Elver 2505a51ac6 locking/barriers, kcsan: Support generic instrumentation
Thus far only smp_*() barriers had been defined by asm-generic/barrier.h
based on __smp_*() barriers, because the !SMP case is usually generic.

With the introduction of instrumentation, it also makes sense to have
asm-generic/barrier.h assist in the definition of instrumented versions
of mb(), rmb(), wmb(), dma_rmb(), and dma_wmb().

Because there is no requirement to distinguish the !SMP case, the
definition can be simpler: we can avoid also providing fallbacks for the
__ prefixed cases, and only check if `defined(__<barrier>)`, to finally
define the KCSAN-instrumented versions.

This also allows for the compiler to complain if an architecture
accidentally defines both the normal and __ prefixed variant.

Signed-off-by: Marco Elver <elver@google.com>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
2021-12-09 16:42:27 -08:00
..
2021-09-01 15:13:02 -07:00
2017-11-15 13:28:48 -08:00
2021-10-18 07:49:36 -04:00
2021-10-08 11:57:54 -07:00
2021-02-24 16:32:23 -08:00
2021-06-29 10:53:55 -07:00
2020-01-23 10:41:16 -08:00
2021-01-20 09:30:45 +01:00
2018-05-07 07:15:41 +02:00
2021-11-04 08:32:38 -07:00