Re: [PATCH -V14 0/11] Generic name to handle and open by handle syscalls

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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.
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