From: "J. R. Okajima" <hooanon05@yahoo.co.jp>
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,
linux-fsdevel@vger.kernel.org, sfrench@us.ibm.com,
philippe.deniel@CEA.FR, linux-kernel@vger.kernel.org
Subject: Re: [PATCH -V8 2/9] vfs: Add name to file handle conversion support
Date: Tue, 18 May 2010 11:33:50 +0900 [thread overview]
Message-ID: <7252.1274150030@jrobl> (raw)
In-Reply-To: <1274074432-29695-3-git-send-email-aneesh.kumar@linux.vnet.ibm.com>
"Aneesh Kumar K.V":
> This patch add a new superblock operations get_fsid that returns the
> UUID mapping for the file system. The UUID returned is used to
> identify the file system apart of file_handle
I am afraid get_fsid in s_op may conflict with "fsid=" option in /etc/exports.
Generally all FSs have UUID or device number and they can return "fsid"
correctly. But some of them may not have such id, or users may assign
different fsid for them.
Is "fsid=" value passed to superblock and can FS return it? Otherwise
they cannot implement ->get_fsid().
J. R. Okajima
next prev parent reply other threads:[~2010-05-18 2:40 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-17 5:33 [PATCH -V8 0/9] Generic name to handle and open by handle syscalls Aneesh Kumar K.V
2010-05-17 5:33 ` [PATCH -V8 1/9] exportfs: Return the minimum required handle size Aneesh Kumar K.V
2010-05-17 5:33 ` [PATCH -V8 2/9] vfs: Add name to file handle conversion support Aneesh Kumar K.V
2010-05-18 2:33 ` J. R. Okajima [this message]
2010-05-18 5:40 ` Aneesh Kumar K. V
2010-05-18 6:18 ` J. R. Okajima
2010-05-18 6:58 ` Aneesh Kumar K. V
2010-05-18 6:43 ` Dave Chinner
2010-05-18 10:17 ` Aneesh Kumar K. V
2010-05-19 7:15 ` J. R. Okajima
2010-05-19 8:52 ` Aneesh Kumar K. V
2010-05-19 9:26 ` Aneesh Kumar K. V
2010-05-19 13:50 ` J. R. Okajima
2010-05-17 5:33 ` [PATCH -V8 3/9] vfs: Add open by file handle support Aneesh Kumar K.V
2010-05-17 5:33 ` [PATCH -V8 4/9] vfs: Allow handle based open on symlinks Aneesh Kumar K.V
2010-05-17 5:33 ` [PATCH -V8 5/9] vfs: Support null pathname in readlink Aneesh Kumar K.V
2010-05-17 5:33 ` [PATCH -V8 6/9] ext4: Add get_fsid callback Aneesh Kumar K.V
2010-05-17 5:33 ` [PATCH -V8 7/9] x86: Add new syscalls for x86_32 Aneesh Kumar K.V
2010-05-17 5:33 ` [PATCH -V8 8/9] x86: Add new syscalls for x86_64 Aneesh Kumar K.V
2010-05-17 5:33 ` [PATCH -V8 9/9] ext3: Add get_fsid callback Aneesh Kumar K.V
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