Re: [Ksummit-discuss] Mount API?

Re: [Ksummit-discuss] Mount API?

[Eric W. Biederman]

Serge E. Hallyn <serge@hallyn.com> writes:
> Quoting Andy Lutomirski (luto at amacapital.net):
> > ISTR Eric Biederman mentioned this, but I don't know whether he's
> > volunteering or whether he'll be there.
> > 
> > I could try to write it, but my VFS track record is pretty bad.
> > On Aug 16, 2014 9:00 PM, "Jan Kara" <jack at suse.cz> wrote:
> > 
> > > On Sat 16-08-14 13:43:40, Andy Lutomirski wrote:
> > > > Is anyone interested in discussing a new mount API in the unconference
> > > > track?
> > > >
> > > > Think bindmountat, etc.
> > >   We can discuss however will there be anyone who's going to write the
> > > code? I know Miklos Szeredi was looking into that but it didn't go anywhere
> > > AFAIK and he won't be at KS/LinuxCon. And I'm not sure if Al will be at the
> > > conference..
> 
> I'm quite certain Eric will at least be at the venue.  Eric?

I am here and I will be here all week.

With respect to bind mounts I was mentioning a patch that someone
was actively working on a week or two ago to allow at least the read-only
flag to be specified when a bind mount is created.

For a whole new clean mount API I don't know.  I do think it would be
productive for us to get together and talk.  Weather that is at the
container session on Friday or elswhere I don't know.


Eric

Re: [Ksummit-discuss] Mount API?

[Serge E. Hallyn]

Quoting Eric W. Biederman (ebiederm@xmission.com):
> 
> Serge E. Hallyn <serge@hallyn.com> writes:
> > Quoting Andy Lutomirski (luto at amacapital.net):
> > > ISTR Eric Biederman mentioned this, but I don't know whether he's
> > > volunteering or whether he'll be there.
> > > 
> > > I could try to write it, but my VFS track record is pretty bad.
> > > On Aug 16, 2014 9:00 PM, "Jan Kara" <jack at suse.cz> wrote:
> > > 
> > > > On Sat 16-08-14 13:43:40, Andy Lutomirski wrote:
> > > > > Is anyone interested in discussing a new mount API in the unconference
> > > > > track?
> > > > >
> > > > > Think bindmountat, etc.
> > > >   We can discuss however will there be anyone who's going to write the
> > > > code? I know Miklos Szeredi was looking into that but it didn't go anywhere
> > > > AFAIK and he won't be at KS/LinuxCon. And I'm not sure if Al will be at the
> > > > conference..
> > 
> > I'm quite certain Eric will at least be at the venue.  Eric?
> 
> I am here and I will be here all week.
> 
> With respect to bind mounts I was mentioning a patch that someone
> was actively working on a week or two ago to allow at least the read-only
> flag to be specified when a bind mount is created.
> 
> For a whole new clean mount API I don't know.  I do think it would be
> productive for us to get together and talk.  Weather that is at the
> container session on Friday or elswhere I don't know.

If Al isn't there on M-T, then Friday works great for me.

thanks,
-serge

Re: [Ksummit-discuss] Mount API?

[Andy Lutomirski]

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On Aug 17, 2014 11:00 PM, "Serge E. Hallyn" <serge@hallyn.com> wrote:
>
> Quoting Eric W. Biederman (ebiederm@xmission.com):
> >
> > Serge E. Hallyn <serge@hallyn.com> writes:
> > > Quoting Andy Lutomirski (luto at amacapital.net):
> > > > ISTR Eric Biederman mentioned this, but I don't know whether he's
> > > > volunteering or whether he'll be there.
> > > >
> > > > I could try to write it, but my VFS track record is pretty bad.
> > > > On Aug 16, 2014 9:00 PM, "Jan Kara" <jack at suse.cz> wrote:
> > > >
> > > > > On Sat 16-08-14 13:43:40, Andy Lutomirski wrote:
> > > > > > Is anyone interested in discussing a new mount API in the
unconference
> > > > > > track?
> > > > > >
> > > > > > Think bindmountat, etc.
> > > > >   We can discuss however will there be anyone who's going to
write the
> > > > > code? I know Miklos Szeredi was looking into that but it didn't
go anywhere
> > > > > AFAIK and he won't be at KS/LinuxCon. And I'm not sure if Al will
be at the
> > > > > conference..
> > >
> > > I'm quite certain Eric will at least be at the venue.  Eric?
> >
> > I am here and I will be here all week.
> >
> > With respect to bind mounts I was mentioning a patch that someone
> > was actively working on a week or two ago to allow at least the
read-only
> > flag to be specified when a bind mount is created.
> >
> > For a whole new clean mount API I don't know.  I do think it would be
> > productive for us to get together and talk.  Weather that is at the
> > container session on Friday or elswhere I don't know.
>
> If Al isn't there on M-T, then Friday works great for me.

I'll be gone then.  Oh, well.

>
> thanks,
> -serge

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Re: [Ksummit-discuss] Mount API?

[Miklos Szeredi]

FYR here's Al's summary of the subject, which I think is a good starting point:

      "Frankly, I wonder if we are trying to pack too much into one
syscall - not just in terms of overloading it (that much is obvious),
but in terms of trying to cram a sequence of syscalls into one.  If
we end up introducing new API(s) for mount(), it's probably worth
considering something like this:
        * open a connection to fs type driver, get a descriptor
        * use normal IO syscalls (usually just write(2)) on that
descriptor to tell fs type driver what do we want.  If any kind of
authentication is needed, that's the time for doing it
        * attach the thing identified by that descriptor to mountpoint"

Thanks,
Miklos

Re: [Ksummit-discuss] Mount API?

[Theodore Ts'o]

On Sun, Aug 17, 2014 at 09:03:52PM -0700, Andy Lutomirski wrote:
> > > > I'm quite certain Eric will at least be at the venue.  Eric?
> > >
> > > I am here and I will be here all week.
> > >
> > > With respect to bind mounts I was mentioning a patch that someone
> > > was actively working on a week or two ago to allow at least the
> read-only
> > > flag to be specified when a bind mount is created.
> > >
> > > For a whole new clean mount API I don't know.  I do think it would be
> > > productive for us to get together and talk.  Weather that is at the
> > > container session on Friday or elswhere I don't know.
> >
> > If Al isn't there on M-T, then Friday works great for me.
> 
> I'll be gone then.  Oh, well.

This sounds like a perfect 30 minute slot for Tuesday's "unconference"
track.  Someone want to try to suggest a slot?  Go to
http://goo.gl/xmeoSd and leave a comment on a time slot you'd like to
propose....

						- Ted

Re: [Ksummit-discuss] Mount API?

[Serge E. Hallyn]

Quoting Theodore Ts'o (tytso@mit.edu):
> On Sun, Aug 17, 2014 at 09:03:52PM -0700, Andy Lutomirski wrote:
> > > > > I'm quite certain Eric will at least be at the venue.  Eric?
> > > >
> > > > I am here and I will be here all week.
> > > >
> > > > With respect to bind mounts I was mentioning a patch that someone
> > > > was actively working on a week or two ago to allow at least the
> > read-only
> > > > flag to be specified when a bind mount is created.
> > > >
> > > > For a whole new clean mount API I don't know.  I do think it would be
> > > > productive for us to get together and talk.  Weather that is at the
> > > > container session on Friday or elswhere I don't know.
> > >
> > > If Al isn't there on M-T, then Friday works great for me.
> > 
> > I'll be gone then.  Oh, well.
> 
> This sounds like a perfect 30 minute slot for Tuesday's "unconference"
> track.  Someone want to try to suggest a slot?  Go to
> http://goo.gl/xmeoSd and leave a comment on a time slot you'd like to
> propose....

I tried to write it down for 12:00, but I don't seem to have edit
perms.

Re: [Ksummit-discuss] Mount API?

[Theodore Ts'o]

On Tue, Aug 19, 2014 at 04:06:01AM +0200, Serge E. Hallyn wrote:
> I tried to write it down for 12:00, but I don't seem to have edit
> perms.

I've scheduled Mount API for 12:00.

(For anyone else who wants to schedule something for Tuesday, please
leave a comment on the spreadsheet --- right click, select "insert a
comment" --- on the slot that you're trying to reserve.)

Cheers,

							- Ted

[Ksummit-discuss] Mount API?

[Andy Lutomirski]

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Is anyone interested in discussing a new mount API in the unconference
track?

Think bindmountat, etc.

--Andy

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Re: [Ksummit-discuss] Mount API?

[Serge E. Hallyn]

Quoting Andy Lutomirski (luto@amacapital.net):
> Is anyone interested in discussing a new mount API in the unconference
> track?
> 
> Think bindmountat, etc.
> 
> --Andy

Thanks, Andy.  I certainly am.

-serge

Re: [Ksummit-discuss] Mount API?

[Josh Triplett]

On Sat, Aug 16, 2014 at 01:43:40PM -0700, Andy Lutomirski wrote:
> Is anyone interested in discussing a new mount API in the unconference
> track?
> 
> Think bindmountat, etc.

I'm quite interested.  The current mount API is crufty, very
string-heavy, and far too multiplexed.

- Josh Triplett

Re: [Ksummit-discuss] Mount API?

[Jan Kara]

On Sat 16-08-14 13:43:40, Andy Lutomirski wrote:
> Is anyone interested in discussing a new mount API in the unconference
> track?
> 
> Think bindmountat, etc.
  We can discuss however will there be anyone who's going to write the
code? I know Miklos Szeredi was looking into that but it didn't go anywhere
AFAIK and he won't be at KS/LinuxCon. And I'm not sure if Al will be at the
conference..
								Honza
-- 
Jan Kara <jack@suse.cz>
SUSE Labs, CR

Re: [Ksummit-discuss] Mount API?

[Andy Lutomirski]

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ISTR Eric Biederman mentioned this, but I don't know whether he's
volunteering or whether he'll be there.

I could try to write it, but my VFS track record is pretty bad.
On Aug 16, 2014 9:00 PM, "Jan Kara" <jack@suse.cz> wrote:

> On Sat 16-08-14 13:43:40, Andy Lutomirski wrote:
> > Is anyone interested in discussing a new mount API in the unconference
> > track?
> >
> > Think bindmountat, etc.
>   We can discuss however will there be anyone who's going to write the
> code? I know Miklos Szeredi was looking into that but it didn't go anywhere
> AFAIK and he won't be at KS/LinuxCon. And I'm not sure if Al will be at the
> conference..
>                                                                 Honza
> --
> Jan Kara <jack@suse.cz>
> SUSE Labs, CR
>

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Re: [Ksummit-discuss] Mount API?

[Serge E. Hallyn]

Quoting Andy Lutomirski (luto@amacapital.net):
> ISTR Eric Biederman mentioned this, but I don't know whether he's
> volunteering or whether he'll be there.
> 
> I could try to write it, but my VFS track record is pretty bad.
> On Aug 16, 2014 9:00 PM, "Jan Kara" <jack@suse.cz> wrote:
> 
> > On Sat 16-08-14 13:43:40, Andy Lutomirski wrote:
> > > Is anyone interested in discussing a new mount API in the unconference
> > > track?
> > >
> > > Think bindmountat, etc.
> >   We can discuss however will there be anyone who's going to write the
> > code? I know Miklos Szeredi was looking into that but it didn't go anywhere
> > AFAIK and he won't be at KS/LinuxCon. And I'm not sure if Al will be at the
> > conference..

I'm quite certain Eric will at least be at the venue.  Eric?