On Sun, Aug 07, 2011 at 02:14:50PM +, David Holland wrote:
> On Sun, Aug 07, 2011 at 09:52:11AM +0200, Reinoud Zandijk wrote:
> > i've implemented the SEEK_HOLE / SEEK_DATA additions to lseek() as
> > introduced by Solaris for ZFS.
>
> What does this operation have to do with seeking? And wh
On Dec 28, 1:27pm, Reinoud Zandijk wrote:
} On Sun, Aug 07, 2011 at 02:14:50PM +, David Holland wrote:
} > On Sun, Aug 07, 2011 at 09:52:11AM +0200, Reinoud Zandijk wrote:
} > > i've implemented the SEEK_HOLE / SEEK_DATA additions to lseek() as
} > > introduced by Solaris for ZFS.
} >
} > W
On Mon, Aug 08, 2011 at 12:15:03AM +, David Holland wrote:
> > >struct range range;
> > >
> > >while (pos < len) {
> > > fgetrange(fd, pos, &range);
> > > if (range.r_type == RANGE_DATA) {
> > > amount = range.r_end - pos;
> > > if (amount > sizeof(
On Sun, Aug 07, 2011 at 02:14:50PM +, David Holland wrote:
> On Sun, Aug 07, 2011 at 09:52:11AM +0200, Reinoud Zandijk wrote:
> > i've implemented the SEEK_HOLE / SEEK_DATA additions to lseek() as
> > introduced by Solaris for ZFS.
>
> What does this operation have to do with seeking? And wh
On Sun, Aug 07, 2011 at 08:39:51PM -0500, Eric Haszlakiewicz wrote:
> > > > Even your example code does this: it seeks repeatedly, teleporting the
> > > > seek pointer all over the place for no reason, then does a bunch of
> > > > reads.
> > > > > So yes, it changes the file pointer too but tha
On Mon, Aug 08, 2011 at 12:15:03AM +, David Holland wrote:
> On Sun, Aug 07, 2011 at 10:03:34PM +0200, Reinoud Zandijk wrote:
> > > Even your example code does this: it seeks repeatedly, teleporting the
> > > seek pointer all over the place for no reason, then does a bunch of
> > > reads.
>
On Sun, Aug 07, 2011 at 10:03:34PM +0200, Reinoud Zandijk wrote:
> > > > > i've implemented the SEEK_HOLE / SEEK_DATA additions to lseek() as
> > > > > introduced by Solaris for ZFS.
> > > One `seeks' the next hole of data block in the file from a given
> > > pos? Sounds logical to me.
> >
>
Hi David, hi folks,
On Sun, Aug 07, 2011 at 05:06:16PM +, David Holland wrote:
> On Sun, Aug 07, 2011 at 06:52:03PM +0200, Reinoud Zandijk wrote:
> > > > i've implemented the SEEK_HOLE / SEEK_DATA additions to lseek() as
> > > > introduced by Solaris for ZFS.
> > One `seeks' the next hole o
On Sun, Aug 07, 2011 at 06:52:03PM +0200, Reinoud Zandijk wrote:
> > > i've implemented the SEEK_HOLE / SEEK_DATA additions to lseek() as
> > > introduced by Solaris for ZFS.
> >
> > What does this operation have to do with seeking? And why involve the
> > seek pointer, especially at a time w
Hi David, hi folks,
On Sun, Aug 07, 2011 at 02:14:50PM +, David Holland wrote:
> On Sun, Aug 07, 2011 at 09:52:11AM +0200, Reinoud Zandijk wrote:
> > i've implemented the SEEK_HOLE / SEEK_DATA additions to lseek() as
> > introduced by Solaris for ZFS.
>
> What does this operation have to do
On Sun, Aug 07, 2011 at 09:52:11AM +0200, Reinoud Zandijk wrote:
> i've implemented the SEEK_HOLE / SEEK_DATA additions to lseek() as
> introduced by Solaris for ZFS.
What does this operation have to do with seeking? And why involve the
seek pointer, especially at a time when new calls are being
Dear folks,
i've implemented the SEEK_HOLE / SEEK_DATA additions to lseek() as introduced
by Solaris for ZFS. It ought to perform as in the Solaris implementation. For
a test program and trace on Solaris 10 see https://lkml.org/lkml/2011/4/22/79
Test runs have been made on NFS (genfs_seek) and FF
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