From: "J. Bruce Fields" <bfields@fieldses.org>
To: Neil Brown <neilb@suse.de>
Cc: Dave Chinner <david@fromorbit.com>,
"Aneesh Kumar K. V" <aneesh.kumar@linux.vnet.ibm.com>,
hch@infradead.org, viro@zeniv.linux.org.uk, adilger@sun.com,
corbet@lwn.net, serue@us.ibm.com, hooanon05@yahoo.co.jp,
linux-fsdevel@vger.kernel.org, sfrench@us.ibm.com,
philippe.deniel@CEA.FR, linux-kernel@vger.kernel.org
Subject: Re: [PATCH -V14 0/11] Generic name to handle and open by handle syscalls
Date: Wed, 7 Jul 2010 08:57:01 -0400 [thread overview]
Message-ID: <20100707125701.GA19872@fieldses.org> (raw)
In-Reply-To: <20100707125726.3695587a@notabene.brown>
On Wed, Jul 07, 2010 at 12:57:26PM +1000, Neil Brown wrote:
> The trouble with /proc/mounts is that it is somewhat clumsy to parse
> (remember to handle \0ctal escapes) and doesn't include major/minor number
> which is the primary key for identifying filesystems in Linux
> (see /sys/class/bdi/MAJOR:MINOR which is e.g. the best place to configure
> read-ahead for a filesystem).
>
> So /proc/mounts could work (and would probably be better than a new syscall)
> but I would really rather see something sane in /sys for
> inspecting/configuring filesystems (rather than each filesystem doing their
> own independent thing in /sys/fs).
If you use sys or proc, is it possible to get the uuid from a file
descriptor or pathname without races?
--b.
next prev parent reply other threads:[~2010-07-07 12:57 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
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 [this message]
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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