K 10 svn:author V 3 kan K 8 svn:date V 27 2009-04-12T17:43:41.110699Z K 7 svn:log V 420 Reimplement r189287 for -stable: Change vfs_busy to wait until an outcome of pending unmount operation is known and to retry or fail accordingly to that outcome. This fixes the problem with namespace traversing programs failing with random ENOENT errors if someone just happened to try to unmount that same filesystem at the same time. Prodded by: dhw, obrien Approved by: re(kib) Sponsored by: Juniper Networks, Inc. END