Re: git: f9413897cb84 - main - linuxkpi: Add down_write_nest_lock

From: Emmanuel Vadot <manu_at_bidouilliste.com>
Date: Wed, 23 Mar 2022 13:47:05 UTC 
On Wed, 23 Mar 2022 13:39:02 GMT
Emmanuel Vadot <manu@FreeBSD.org> wrote:

> The branch main has been updated by manu:
> 
> URL: https://cgit.FreeBSD.org/src/commit/?id=f9413897cb84499c76be140312e6ef2d24488040
> 
> commit f9413897cb84499c76be140312e6ef2d24488040
> Author:     Emmanuel Vadot <manu@FreeBSD.org>
> AuthorDate: 2022-03-22 09:28:02 +0000
> Commit:     Emmanuel Vadot <manu@FreeBSD.org>
> CommitDate: 2022-03-23 13:37:53 +0000
> 
>     linuxkpi: Add down_write_nest_lock
>     
>     Simply calls down_write like in Linux (when CONFIG_DEBUG_LOCK_ALLOC isn't
>     specified)
>     Needed by drm v5.10
>     
>     MFC after:      1 month
>     Reviewed by:    hselasky
>     Sponsored by:   Beckhoff Automation GmbH & Co. KG
>     Differential Revision:  https://reviews.freebsd.org/D34642

 Should have been https://reviews.freebsd.org/D34643, sorry.

> ---
>  sys/compat/linuxkpi/common/include/linux/rwsem.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/sys/compat/linuxkpi/common/include/linux/rwsem.h b/sys/compat/linuxkpi/common/include/linux/rwsem.h
> index 1e9eae79dbb8..fc3580bc186e 100644
> --- a/sys/compat/linuxkpi/common/include/linux/rwsem.h
> +++ b/sys/compat/linuxkpi/common/include/linux/rwsem.h
> @@ -51,6 +51,7 @@ struct rw_semaphore {
>  #define	downgrade_write(_rw)		sx_downgrade(&(_rw)->sx)
>  #define	down_read_nested(_rw, _sc)	down_read(_rw)
>  #define	init_rwsem(_rw)			linux_init_rwsem(_rw, rwsem_name("lnxrwsem"))
> +#define	down_write_nest_lock(sem, _rw)	down_write(_rw)
>  
>  #ifdef WITNESS_ALL
>  /* NOTE: the maximum WITNESS name is 64 chars */


-- 
Emmanuel Vadot <manu@bidouilliste.com> <manu@freebsd.org>