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

[Arthur Marsh]

[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@xxxxxxx>
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@xxxxxxx>
    Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

:040000 040000 7a000897ad0d1524a7e1cb187bc77d92b8397d56 
38f02e55f70b009f8b1149cdd75f571c72406fe4 M      fs

Has this problem been seen by anyone else?

Is a fix already in the works?

Regards,

Arthur.
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