With PREEMPT_RT the _bh() version of a spinlock leaves preemption
enabled, align the doc to say that instead of the opposite.

Reported-by: Leah Leshchinsky <lleshchi@redhat.com>
Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
---
 Documentation/locking/locktypes.rst | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Documentation/locking/locktypes.rst b/Documentation/locking/locktypes.rst
index 4fd7b70fcde1..bfa75ea1b66a 100644
--- a/Documentation/locking/locktypes.rst
+++ b/Documentation/locking/locktypes.rst
@@ -247,7 +247,7 @@ based on rt_mutex which changes the semantics:
    Non-PREEMPT_RT kernels disable preemption to get this effect.
 
    PREEMPT_RT kernels use a per-CPU lock for serialization which keeps
-   preemption disabled. The lock disables softirq handlers and also
+   preemption enabled. The lock disables softirq handlers and also
    prevents reentrancy due to task preemption.
 
 PREEMPT_RT kernels preserve all other spinlock_t semantics:
-- 
2.35.1

On Thu, Feb 24, 2022 at 03:23:12PM -0600, Andrew Halaney wrote:
> With PREEMPT_RT the _bh() version of a spinlock leaves preemption
> enabled, align the doc to say that instead of the opposite.
> 
> Reported-by: Leah Leshchinsky <lleshchi@redhat.com>
> Signed-off-by: Andrew Halaney <ahalaney@redhat.com>

Reviewed-by: Boqun Feng <boqun.feng@gmail.com>

Regards,
Boqun

> ---
>  Documentation/locking/locktypes.rst | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/Documentation/locking/locktypes.rst b/Documentation/locking/locktypes.rst
> index 4fd7b70fcde1..bfa75ea1b66a 100644
> --- a/Documentation/locking/locktypes.rst
> +++ b/Documentation/locking/locktypes.rst
> @@ -247,7 +247,7 @@ based on rt_mutex which changes the semantics:
>     Non-PREEMPT_RT kernels disable preemption to get this effect.
>  
>     PREEMPT_RT kernels use a per-CPU lock for serialization which keeps
> -   preemption disabled. The lock disables softirq handlers and also
> +   preemption enabled. The lock disables softirq handlers and also
>     prevents reentrancy due to task preemption.
>  
>  PREEMPT_RT kernels preserve all other spinlock_t semantics:
> -- 
> 2.35.1
> 

Andrew Halaney <ahalaney@redhat.com> writes:

> With PREEMPT_RT the _bh() version of a spinlock leaves preemption
> enabled, align the doc to say that instead of the opposite.
>
> Reported-by: Leah Leshchinsky <lleshchi@redhat.com>
> Signed-off-by: Andrew Halaney <ahalaney@redhat.com>
> ---
>  Documentation/locking/locktypes.rst | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Documentation/locking/locktypes.rst b/Documentation/locking/locktypes.rst
> index 4fd7b70fcde1..bfa75ea1b66a 100644
> --- a/Documentation/locking/locktypes.rst
> +++ b/Documentation/locking/locktypes.rst
> @@ -247,7 +247,7 @@ based on rt_mutex which changes the semantics:
>     Non-PREEMPT_RT kernels disable preemption to get this effect.
>  
>     PREEMPT_RT kernels use a per-CPU lock for serialization which keeps
> -   preemption disabled. The lock disables softirq handlers and also
> +   preemption enabled. The lock disables softirq handlers and also
>     prevents reentrancy due to task preemption.

Applied, thanks.

jon