Re: [CFT][PATCH] long-living cache for block devices

[Alexander Viro]

On Fri, 9 Nov 2001, Linus Torvalds wrote:

> 
> On Fri, 9 Nov 2001, Alexander Viro wrote:
> >
> > 	Logics looks so: upon the final close() we finish all pending
> > IO and destroy all buffer_heads for device.
> 
> Why do yu care about destroying buffer-heads?
> 
> You might as well leave them active, I don't see what you win from trying
> to get rid of them aggressively. They'll go away when the pages go away..

The simplest way to make sure that all IO is over (including readaheads).