On Tue, Sep 11, 2007 at 02:35:34PM +0200, Matthias Koenig wrote:
> The mount syscall prevents mounting the same device twice
> to the same mountpoint. When loop mounting a file, for each
> file a new loop device gets allocated, which prevents the detection
> of loop mounting the same file to the same mountpoint twice.
> The patch adds a check to prevent double mounts, if the same loopfile
> is going to be mounted with the same offset to the same mountpoint.
Applied, but with some changes.
I have also added a warning (to verbose mount/losetup mode) when the
same loop file is already associated with another loop device:
# losetup -v -f /mnt/store/images/fs/ext3.img
Loop device is /dev/loop0
# losetup -v -f /mnt/store/images/fs/ext3.img
warning: /mnt/store/images/fs/ext3.img is already associated with /dev/loop0
Loop device is /dev/loop1
This is independent on mtab or mountpoints.
Thanks!
Karel
--
Karel Zak <kzak@xxxxxxxxxx>
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