Re: [PATCH] xfsprogs: add fallocate command to xfs_io

[Christoph Hellwig <hch@xxxxxxxxxxxxx>]

On Fri, May 15, 2009 at 01:13:24PM -0400, Christoph Hellwig wrote:
> On Sun, May 10, 2009 at 07:30:13PM -0500, Eric Sandeen wrote:
> > Based on Dave's earlier patch, but now we have an fallocate
> > glibc call... this also adds autoconf magic and a manpage 
> > update.
> > 
> > (hopefully not too #ifdef-heavy....)
> 
> Looks good to me and seems to work.

Actually that was spoken too fast.  On my Debian -testing system it
detects fallocate as available because <linux/falloc.h> exists, but the
glibc doesn't actually support a falloc(3) yet.  So either the detection
needs to be improved or we need to use the raw syscall.