From: Nick Piggin <npiggin@suse.de>
To: "Aneesh Kumar K. V" <aneesh.kumar@linux.vnet.ibm.com>
Cc: hch@infradead.org, viro@zeniv.linux.org.uk, adilger@sun.com,
corbet@lwn.net, serue@us.ibm.com, neilb@suse.de,
hooanon05@yahoo.co.jp, bfields@fieldses.org,
linux-fsdevel@vger.kernel.org, sfrench@us.ibm.com,
philippe.deniel@CEA.FR, linux-kernel@vger.kernel.org
Subject: Re: [PATCH -V14 04/11] vfs: Allow handle based open on symlinks
Date: Thu, 8 Jul 2010 04:20:01 +1000 [thread overview]
Message-ID: <20100707182001.GG9263@laptop> (raw)
In-Reply-To: <874ogbfaas.fsf@linux.vnet.ibm.com>
On Wed, Jul 07, 2010 at 11:23:31PM +0530, Aneesh Kumar K. V wrote:
> On Thu, 8 Jul 2010 02:57:19 +1000, Nick Piggin <npiggin@suse.de> wrote:
> > I haven't followed this thread closely, so can you just go back
> > and explain to me why you need this? Ie. that you can't achieve with
> > a path-to-handle follow/nofollow option.
>
>
> We need to be able to read the link target using file handle. The exact
> usecase i have is with respect to implementing READLINK operation on a
> userspace NFS server. The request contain the file handle and the
> response include target name.
Fair point, could you include this stuff in your changelog? It may
help with other people reviewing it too who have not followed closely.
> Similarly we need to able to get file attribute based on file handle.
> I was using readlinkat and fstat to obtain both the above information
> using the descriptor returned by open_by_handle on a file handle
> representing symlink
>
> -aneesh
next prev parent reply other threads:[~2010-07-07 18:20 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-06-15 17:12 [PATCH -V14 0/11] Generic name to handle and open by handle syscalls Aneesh Kumar K.V
2010-06-15 17:12 ` [PATCH -V14 01/11] exportfs: Return the minimum required handle size Aneesh Kumar K.V
2010-06-15 17:12 ` [PATCH -V14 02/11] vfs: Add name to file handle conversion support Aneesh Kumar K.V
2010-06-15 17:12 ` [PATCH -V14 03/11] vfs: Add open by file handle support Aneesh Kumar K.V
2010-07-07 15:17 ` Nick Piggin
2010-07-07 16:16 ` Aneesh Kumar K. V
2010-06-15 17:12 ` [PATCH -V14 04/11] vfs: Allow handle based open on symlinks Aneesh Kumar K.V
2010-07-07 15:23 ` Nick Piggin
2010-07-07 16:24 ` Aneesh Kumar K. V
2010-07-07 16:57 ` Nick Piggin
2010-07-07 17:53 ` Aneesh Kumar K. V
2010-07-07 18:20 ` Nick Piggin [this message]
2010-07-07 16:48 ` Nick Piggin
2010-07-08 10:42 ` Aneesh Kumar K. V
2010-06-15 17:12 ` [PATCH -V14 05/11] vfs: Support null pathname in readlink Aneesh Kumar K.V
2010-07-07 15:27 ` Nick Piggin
2010-07-07 16:32 ` Aneesh Kumar K. V
2010-07-07 17:03 ` Nick Piggin
2010-06-15 17:12 ` [PATCH -V14 06/11] ext4: Copy fs UUID to superblock Aneesh Kumar K.V
2010-06-15 17:12 ` [PATCH -V14 07/11] x86: Add new syscalls for x86_32 Aneesh Kumar K.V
2010-06-15 17:12 ` [PATCH -V14 08/11] x86: Add new syscalls for x86_64 Aneesh Kumar K.V
2010-06-15 17:12 ` [PATCH -V14 09/11] ext3: Copy fs UUID to superblock Aneesh Kumar K.V
2010-06-15 17:13 ` [PATCH -V14 10/11] vfs: Support null pathname in faccessat Aneesh Kumar K.V
2010-06-15 17:13 ` [PATCH -V14 11/11] vfs: Support null pathname in linkat Aneesh Kumar K.V
2010-07-01 16:28 ` [PATCH -V14 0/11] Generic name to handle and open by handle syscalls Aneesh Kumar K. V
2010-07-01 20:41 ` Neil Brown
2010-07-01 21:15 ` Aneesh Kumar K. V
2010-07-06 16:10 ` J. Bruce Fields
2010-07-06 17:09 ` Aneesh Kumar K. V
2010-07-06 23:23 ` Dave Chinner
2010-07-06 23:36 ` Neil Brown
2010-07-07 2:11 ` Dave Chinner
2010-07-07 2:57 ` Neil Brown
2010-07-07 12:44 ` Miklos Szeredi
2010-07-07 12:57 ` J. Bruce Fields
2010-07-07 13:10 ` Miklos Szeredi
2010-07-07 13:17 ` J. Bruce Fields
2010-07-07 13:35 ` Miklos Szeredi
2010-07-07 14:45 ` J. Bruce Fields
2010-07-07 16:33 ` Aneesh Kumar K. V
2010-07-07 16:39 ` J. Bruce Fields
2010-07-07 22:21 ` Neil Brown
2010-07-07 22:25 ` J. Bruce Fields
2010-07-08 0:03 ` Andreas Dilger
2010-07-08 5:03 ` Neil Brown
2010-07-08 10:40 ` Aneesh Kumar K. V
2010-07-08 11:52 ` Miklos Szeredi
2010-07-08 12:21 ` Neil Brown
2010-07-09 18:42 ` Andreas Dilger
2010-07-10 4:58 ` Aneesh Kumar K. V
2010-07-07 7:40 ` Andreas Dilger
2010-07-07 15:05 ` J. Bruce Fields
2010-07-07 17:02 ` Andreas Dilger
2010-07-07 17:37 ` J. Bruce Fields
2010-07-07 18:05 ` Nick Piggin
2010-07-07 23:49 ` Andreas Dilger
2010-07-07 18:18 ` Aneesh Kumar K. V
2010-07-07 20:39 ` Alan Cox
2010-07-07 23:54 ` Andreas Dilger
2010-07-02 4:02 ` Andreas Dilger
2010-07-02 7:05 ` hch
2010-07-02 16:12 ` Andreas Dilger
2010-07-02 22:09 ` Neil Brown
2010-07-02 22:47 ` Andreas Dilger
2010-07-03 16:04 ` Aneesh Kumar K. V
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