From: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>
To: Christoph Hellwig <hch-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
Nikhilesh Reddy <reddyn-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>,
Miklos Szeredi <miklos-sUDqSbJrdHQHWmgEVkV9KA@public.gmane.org>,
fuse-devel
<fuse-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org,
torvalds-de/tnXTf+JLsfHDXvbKv3WD2FQJk+8+b@public.gmane.org,
linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
viro-RmSDqhL/yNMiFSDQTTA3OLVCufUGDwFn@public.gmane.org,
Richard Weinberger
<richard.weinberger-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Theodore Ts'o <tytso-3s7WtUTddSA@public.gmane.org>,
jack-AlSwsSmVLrQ@public.gmane.org,
Antonio SJ Musumeci
<trapexit-wGTF+nt6ur047o9RxwvyTQ@public.gmane.org>,
sven.utcke-Mmb7MZpHnFY@public.gmane.org
Subject: Re: [PATCH] fuse: Add support for fuse stacked I/O
Date: Fri, 15 Jan 2016 01:29:49 -0800 [thread overview]
Message-ID: <20160115092949.GA11468@infradead.org> (raw)
In-Reply-To: <87mvs8qhun.fsf-Zv899e0YUSYPWKMTL/zdXNi2O/JbrIOy@public.gmane.org>
On Thu, Jan 14, 2016 at 07:52:00AM -0800, Nikolaus Rath wrote:
> > Please write your stacked features as kernel drivers.
>
> Could you explain in more detail? I think I don't understand either the
> why, the how, or what you mean with driver in this context (not sure
> which one it is).
>
>
> (I'm not the original submitter but interested in this)
If someone is doing stacked pass through I/O, which basically is some
form of unioning or file hiding it should be using overlayfs or a new
kernel stackable file system. That's not to say it could be prototyped
entirely in userspace, but it's not something we should add any bypasses
for.
WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@infradead.org>
To: Christoph Hellwig <hch@infradead.org>,
Nikhilesh Reddy <reddyn@codeaurora.org>,
Miklos Szeredi <miklos@szeredi.hu>,
fuse-devel <fuse-devel@lists.sourceforge.net>,
linux-kernel@vger.kernel.org, linux-api@vger.kernel.org,
gregkh@linuxfoundation.org, torvalds@linux-foundation.org,
linux-fsdevel@vger.kernel.org, viro@zeniv.linux.org.uk,
Richard Weinberger <richard.weinberger@gmail.com>,
Theodore Ts'o <tytso@mit.edu>,
jack@suse.cz, Antonio SJ Musumeci <trapexit@spawn.link>,
sven.utcke@gmx.de
Subject: Re: [PATCH] fuse: Add support for fuse stacked I/O
Date: Fri, 15 Jan 2016 01:29:49 -0800 [thread overview]
Message-ID: <20160115092949.GA11468@infradead.org> (raw)
In-Reply-To: <87mvs8qhun.fsf@thinkpad.rath.org>
On Thu, Jan 14, 2016 at 07:52:00AM -0800, Nikolaus Rath wrote:
> > Please write your stacked features as kernel drivers.
>
> Could you explain in more detail? I think I don't understand either the
> why, the how, or what you mean with driver in this context (not sure
> which one it is).
>
>
> (I'm not the original submitter but interested in this)
If someone is doing stacked pass through I/O, which basically is some
form of unioning or file hiding it should be using overlayfs or a new
kernel stackable file system. That's not to say it could be prototyped
entirely in userspace, but it's not something we should add any bypasses
for.
next prev parent reply other threads:[~2016-01-15 9:29 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <565394BE.4040506@codeaurora.org>
[not found] ` <565394BE.4040506-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-01-13 23:53 ` [PATCH] fuse: Add support for fuse stacked I/O Nikhilesh Reddy
2016-01-13 23:53 ` Nikhilesh Reddy
2016-01-14 4:57 ` Greg KH
2016-01-14 18:57 ` Nikhilesh Reddy
[not found] ` <5697EF97.9020800-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-01-14 19:19 ` Linus Torvalds
2016-01-14 19:19 ` Linus Torvalds
[not found] ` <CA+55aFwxaU0Y_UxyKFv6WaYsPWDDzZG-rhVtMuLSPcJ0WLLw2A-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-01-15 16:31 ` Andy Lutomirski
2016-01-15 16:31 ` Andy Lutomirski
[not found] ` <CALCETrWNQ9ytw1bCOOjFJRstauYc6DocQAmZCF61CErAJ5BF2g-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-01-15 17:37 ` Antonio SJ Musumeci
[not found] ` <CAB3-ZyT+xcU-0BnNvq-+GsDe6W8=MCWwxguS-+KQ39gajmM5pw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-01-15 17:51 ` Nikolaus Rath
2016-01-15 17:51 ` Nikolaus Rath
2016-01-15 19:29 ` Nikhilesh Reddy
[not found] ` <56994884.9060002-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-01-15 21:38 ` Nikolaus Rath
2016-01-15 21:38 ` Nikolaus Rath
2016-01-15 21:43 ` Linus Torvalds
2016-01-15 21:46 ` Andy Lutomirski
[not found] ` <CALCETrUA2veiBYYbN1hCSkHxBFyDpe3b=PXg=j53_ZuQBt1FUw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-01-15 21:53 ` Linus Torvalds
2016-01-15 21:53 ` Linus Torvalds
2016-01-19 2:57 ` Nikhilesh Reddy
[not found] ` <569DA62B.7070701-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-01-20 23:24 ` Nikhilesh Reddy
2016-01-20 23:24 ` Nikhilesh Reddy
2016-01-15 21:56 ` [fuse-devel] " Hans Beckerus
[not found] ` <5696E366.2080605-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2016-01-14 8:25 ` Christoph Hellwig
2016-01-14 8:25 ` Christoph Hellwig
2016-01-14 15:52 ` Nikolaus Rath
[not found] ` <87mvs8qhun.fsf-Zv899e0YUSYPWKMTL/zdXNi2O/JbrIOy@public.gmane.org>
2016-01-15 9:29 ` Christoph Hellwig [this message]
2016-01-15 9:29 ` Christoph Hellwig
2016-01-19 3:07 ` Jann Horn
2016-01-19 3:07 ` Jann Horn
[not found] ` <CAK9i0=ojVmbuDiFXY_sHA12vTWgz9aKwEQuZmmYtUka3zqr=hg-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-01-20 23:07 ` Nikhilesh Reddy
2016-01-20 23:07 ` Nikhilesh Reddy
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