Re: howto preallocate to minimize fragmentation

[Nathan Scott <nathans@xxxxxxx>]

On Thu, Apr 13, 2006 at 03:10:00PM +1000, Stewart Smith wrote:
> On Thu, 2005-09-22 at 10:45 -0500, Eric Sandeen wrote:
> > something like this:
> >          err = xfsctl(argv[1], fd, XFS_IOC_RESVSP64, &fl);
> 
> Are we going to see this be part of posix_fallocate in glibc any time
> soon?

I'd be dumbstruck if so.  It really needs a proper fs-independent
system call.  This keeps coming up, and an interface has even been
discussed on LKML in the past - just needs some guy to go do it.
Some guy called "Stewart" maybe. ;)

> The patch would be fairly trivial and then let application
> programmers use a standard interface that has a nice fallback in case of
> non-XFS file systems.

The patch to MySQL would be just as trivial, surely. ;)

cheers.

-- 
Nathan