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[PATCH 0/2] udf: Fix corrupt on-disk integrity descriptor following sync()

In cases where the next unique ID or file/directory count of the
in-core Logical Volume Integrity Descriptor have been updated,
a sync() causes a (corrupt) LVID with a stale CRC to be written to disk.

Ordinarily, this is corrected by an update of the on-disk LVID that occurs
when the filesystem is unmounted. However, if power is lost or the
filesystem resides on a device that is surprise-removed, the corrupt LVID
remains and can complicate later remounting or fsck/chkdsk.