Re: SEEK_HOLE support in 1.5.a60

Joerg Schilling <[email protected]> wrote:

> Bjoern JACKE <[email protected]> wrote:
>
> > Hi Joerg,
> >
> > I just saw that you added support for SEEK_HOLE / SEEK_DATA of current 
> > Solaris devel releases. XFS has such a feature, too by providing the 
> > xfsctl(XFS_IOC_GETBMAPX). Unfortunately none of the daily used tools 
> > support this. If you have SEEK_HOLE support for solaris in star, it 
> > would probably be straight forward to add XFS_IOC_GETBMAPX support, 
> > too.
>
> Star has support for a proprietary Solaris UFS interface since 10 years.
>
> I believe that in order to prevent me from being forced to implement
> dozens of incompatible fs specific interfaces it makes more sense if
> other OS would implement a unique and non FS specific interface like
> SEEK_HOLE.

Let me add some remarks here:

Of course, it could make sense to add an experimental interface for a call
like xfsctl(XFS_IOC_GETBMAPX) to star in order to get some feeling for the
behavior, but in the long run I would prefer a unique interface across
all OS.

Jörg

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