linux-kernel - Re: fuse: implement i_op->atomic_open() prevents writes to ntfs-3g filesystem

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Message-ID: <CA+5PVA6B7aOnsH6w=4vixe2c9OgR5gvKB+QaQ-Tpy-7rw-tqeQ@mail.gmail.com>
Date:	Sun, 12 Aug 2012 10:37:50 -0400
From:	Josh Boyer <jwboyer@...il.com>
To:	Arthur Marsh <arthur.marsh@...ernode.on.net>
Cc:	miklos@...redi.hu, viro@...iv.linux.org.uk,
	linux-kernel@...r.kernel.org
Subject: Re: fuse: implement i_op->atomic_open() prevents writes to ntfs-3g filesystem

On Sun, Aug 12, 2012 at 9:59 AM, Arthur Marsh
<arthur.marsh@...ernode.on.net> wrote:
> [repost, apologies if you see it twice]
> I'm running Debian unstable on AMD64 (quad core) with Linus' github.com
> kernels.
>
> Recently (post 3.5.0 kernels) writes to an ntfs-3g filesystem started
> failing, and I bisected back to the following:
>
> # git bisect good
> c8ccbe032feb127a977c66865cb63d72d9a6e08b is the first bad commit
> commit c8ccbe032feb127a977c66865cb63d72d9a6e08b
> Author: Miklos Szeredi <mszeredi@...e.cz>
> Date:   Tue Jun 5 15:10:22 2012 +0200
>
>     fuse: implement i_op->atomic_open()
>
>     Add an ->atomic_open implementation which replaces the atomic
> open+create
>     operation implemented via ->create.  No functionality is changed.
>
>     Signed-off-by: Miklos Szeredi <mszeredi@...e.cz>
>     Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
>
> :040000 040000 7a000897ad0d1524a7e1cb187bc77d92b8397d56
> 38f02e55f70b009f8b1149cdd75f571c72406fe4 M      fs
>
> Has this problem been seen by anyone else?

Yep, it was reported in Fedora last week.

> Is a fix already in the works?

Miklos posted this patch series that fixed things:

http://thread.gmane.org/gmane.linux.file-systems/66445/focus=1339000

josh
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