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Sage Weil authored
Add a mount option user_subvol_rm_allowed that allows users to delete a (potentially non-empty!) subvol when they would otherwise we allowed to do an rmdir(2). We duplicate the may_delete() checks from the core VFS code to implement identical security checks (minus the directory size check). We additionally require that the user has write+exec permission on the subvol root inode. Signed-off-by:
Sage Weil <sage@newdream.net> Signed-off-by:
Chris Mason <chris.mason@oracle.com>
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