[v5] locking: Introduce nested-BH locking.

[PATCH v5 net-next 01/15] locking/local_lock: Introduce guard definition for local_lock.

Posted by Sebastian Andrzej Siewior 1 year, 8 months ago

Introduce lock guard definition for local_lock_t. There are no users
yet.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
---
 include/linux/local_lock.h | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/include/linux/local_lock.h b/include/linux/local_lock.h
index e55010fa73296..82366a37f4474 100644
--- a/include/linux/local_lock.h
+++ b/include/linux/local_lock.h
@@ -51,4 +51,15 @@
 #define local_unlock_irqrestore(lock, flags)			\
 	__local_unlock_irqrestore(lock, flags)
 
+DEFINE_GUARD(local_lock, local_lock_t __percpu*,
+	     local_lock(_T),
+	     local_unlock(_T))
+DEFINE_GUARD(local_lock_irq, local_lock_t __percpu*,
+	     local_lock_irq(_T),
+	     local_unlock_irq(_T))
+DEFINE_LOCK_GUARD_1(local_lock_irqsave, local_lock_t __percpu,
+		    local_lock_irqsave(_T->lock, _T->flags),
+		    local_unlock_irqrestore(_T->lock, _T->flags),
+		    unsigned long flags)
+
 #endif
-- 
2.45.1

Re: [PATCH v5 net-next 01/15] locking/local_lock: Introduce guard definition for local_lock.

Posted by Thomas Gleixner 1 year, 8 months ago

On Fri, Jun 07 2024 at 08:53, Sebastian Andrzej Siewior wrote:

> Introduce lock guard definition for local_lock_t. There are no users
> yet.
>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> ---
>  include/linux/local_lock.h | 11 +++++++++++
>  1 file changed, 11 insertions(+)
>
> diff --git a/include/linux/local_lock.h b/include/linux/local_lock.h
> index e55010fa73296..82366a37f4474 100644
> --- a/include/linux/local_lock.h
> +++ b/include/linux/local_lock.h
> @@ -51,4 +51,15 @@
>  #define local_unlock_irqrestore(lock, flags)			\
>  	__local_unlock_irqrestore(lock, flags)
>  
> +DEFINE_GUARD(local_lock, local_lock_t __percpu*,
> +	     local_lock(_T),
> +	     local_unlock(_T))
> +DEFINE_GUARD(local_lock_irq, local_lock_t __percpu*,
> +	     local_lock_irq(_T),
> +	     local_unlock_irq(_T))
> +DEFINE_LOCK_GUARD_1(local_lock_irqsave, local_lock_t __percpu,
> +		    local_lock_irqsave(_T->lock, _T->flags),
> +		    local_unlock_irqrestore(_T->lock, _T->flags),
> +		    unsigned long flags)
> +
>  #endif

Reviewed-by: Thomas Gleixner <tglx@linutronix.de>

Re: [PATCH v5 net-next 01/15] locking/local_lock: Introduce guard definition for local_lock.

Posted by Peter Zijlstra 1 year, 8 months ago

On Fri, Jun 07, 2024 at 08:53:04AM +0200, Sebastian Andrzej Siewior wrote:
> Introduce lock guard definition for local_lock_t. There are no users
> yet.
> 
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>

> ---
>  include/linux/local_lock.h | 11 +++++++++++
>  1 file changed, 11 insertions(+)
> 
> diff --git a/include/linux/local_lock.h b/include/linux/local_lock.h
> index e55010fa73296..82366a37f4474 100644
> --- a/include/linux/local_lock.h
> +++ b/include/linux/local_lock.h
> @@ -51,4 +51,15 @@
>  #define local_unlock_irqrestore(lock, flags)			\
>  	__local_unlock_irqrestore(lock, flags)
>  
> +DEFINE_GUARD(local_lock, local_lock_t __percpu*,
> +	     local_lock(_T),
> +	     local_unlock(_T))
> +DEFINE_GUARD(local_lock_irq, local_lock_t __percpu*,
> +	     local_lock_irq(_T),
> +	     local_unlock_irq(_T))
> +DEFINE_LOCK_GUARD_1(local_lock_irqsave, local_lock_t __percpu,
> +		    local_lock_irqsave(_T->lock, _T->flags),
> +		    local_unlock_irqrestore(_T->lock, _T->flags),
> +		    unsigned long flags)
> +
>  #endif
> -- 
> 2.45.1
>