K 10 svn:author V 8 mckusick K 8 svn:date V 27 2012-03-28T20:49:11.143912Z K 7 svn:log V 618 Keep track of the mount point associated with a special device to enable the collection of counts of synchronous and asynchronous reads and writes for its associated filesystem. The counts are displayed using `mount -v'. Ensure that buffers used for paging indicate the vnode from which they are operating so that counts of paging I/O operations from the filesystem are collected. This checkin only adds the setting of the mount point for the UFS/FFS filesystem, but it would be trivial to add the setting and clearing of the mount point at filesystem mount/unmount time for other filesystems too. Reviewed by: kib END