[RFC] [PATCH] VM & VFS changes

Andre Guibert de Bruet andy at siliconlandmark.com
Wed Jun 1 13:07:33 GMT 2005


On Wed, 1 Jun 2005, Poul-Henning Kamp wrote:
> In message <20050601083308.D69811 at lexi.siliconlandmark.com>, Andre Guibert de B
> ruet writes:
> Don Lewis wrote:
>>> This problem is a bit complicated because there can be various
>>> combinations of:
>>>
>>> 	mounted file systems that reside on swap-backed memory disks
>>>
>>> 	mounted file systems that reside on vnode-backed memory disks
>>>
>>> 	vnode-backed memory disks used as swap devices
>
> Maybe the simplest solution is also the best:  keep track of the
> dependencies and do the cleanup leaf->root on the resulting tree.
>
> It would not take much more than a simple data structure to let
> the various pieces of code (mainly md(4) really) say "this device
> depends on this other thing".

PHK,

How would you suggest implementing this? A TAILQ in global scope and a new 
struct?

Did you get a chance to look at the patch? Do you have additional comments 
on it?

Thanks,
Andy

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