Re: CVS commit: src/sys/kern

[Jason Thorpe <thorpej%shagadelic.org@localhost>]

Maybe we should have MEMBAR flavors of the list macros where this  
matters?

-- thorpej@iPhone

On Apr 12, 2008, at 10:34 AM, Andrew Doran <ad%netbsd.org@localhost> wrote:

> Module Name:    src
> Committed By:    ad
> Date:        Sat Apr 12 17:34:26 UTC 2008
>
> Modified Files:
>    src/sys/kern: vfs_cache.c
>
> Log Message:
> cache_enter: inline LIST_INSERT_HEAD so that the membar_producer()  
> can be
> put in the right spot. The 'next' link in the new entry must become  
> globally
> visible before the list head is updated. This could have affected  
> systems
> with weak memory ordering like the alpha.
>
>
> To generate a diff of this commit:
> cvs rdiff -r1.73 -r1.74 src/sys/kern/vfs_cache.c
>
> Please note that diffs are not public domain; they are subject to the
> copyright notices on the relevant files.