Btrfs: don't allow a subvol to be deleted if it is the default subovl

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Eric pointed out that btrfs will happily allow you to delete the default subvol.
This is a problem obviously since the next time you go to mount the file system
it will freak out because it can't find the root.  Fix this by adding a check to
see if our default subvol points to the subvol we are trying to delete, and if
it does not allowing it to happen.  Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>

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Josef Bacik 2013-08-12 15:36:44 -04:00 • committed by Chris Mason

parent a05254143c

commit 175a2b871f

1 changed files with 15 additions and 0 deletions

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fs/btrfs/ioctl.c

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