Re: [PATCH] Useless inode semaphore locking in 2.4.0-test8

[Stephen C. Tweedie]

Hi,

On Fri, Sep 15, 2000 at 08:31:43AM -0400, Alexander Viro wrote:

> > Also truncate inode locking is needed to get a halfway reliable loopback
> > device (unlike the current one)
> 
> ?
> I'm afraid that I've lost you here - what do you mean?

loop does a bmap() and then submits block IO.  You don't want
truncate() to revoke blocks in between the bmap and the IO completion.

Cheers,
 Stephen
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