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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100707182001.GG9263@laptop \
--to=npiggin@suse.de \
--cc=adilger@sun.com \
--cc=aneesh.kumar@linux.vnet.ibm.com \
--cc=bfields@fieldses.org \
--cc=corbet@lwn.net \
--cc=hch@infradead.org \
--cc=hooanon05@yahoo.co.jp \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=neilb@suse.de \
--cc=philippe.deniel@CEA.FR \
--cc=serue@us.ibm.com \
--cc=sfrench@us.ibm.com \
--cc=viro@zeniv.linux.org.uk \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.