Subject: Re: lseek() extension for spare files
To: Reinoud Zandijk <firstname.lastname@example.org>
From: Jason Thorpe <email@example.com>
Date: 09/21/2006 13:51:28
On Sep 20, 2006, at 6:44 PM, Reinoud Zandijk wrote:
> Dear folks,
> attached is a patch that implements the lseek() extension for sparse
> as can be found in Solaris 10. Linux aparently has already
> adopted/implented it also.
> It adds the SEEK_DATA and SEEK_HOLE `whence' arguments to lseek().
> For a
> more detailed look see the solaris 10 man page :
So, it looks like these new whence arguments are essentially designed
to enumerate the holes or filled regions of the file.
I don't see anything particularly wrong with having it (note I have
not yet reviewed the actual patch), but what's the application usage?