freebsd-skq/sys/ufs
jeff 1968343329 - Since rev 1.142 of ffs_snapshot.c the interlock has not been required
to protect the v_lock pointer.  Removing the interlock acquisition
   here allows vn_lock() to proceed without requiring the interlock
   at all.
 - If the lock mutated while we were sleeping on it the interlock has
   been dropped.  It is conceivable that the upper layer code was
   relying on the interlock and LK_NOWAIT to protect the identity or
   state of the vnode while acquiring the lock.  In this case return
   EBUSY rather than trying the new lock to prevent potential races.

Reviewed by:	tegge
2008-03-31 07:55:45 +00:00
..
ffs - Since rev 1.142 of ffs_snapshot.c the interlock has not been required 2008-03-31 07:55:45 +00:00
ufs Add the new kernel-mode NFS Lock Manager. To use it instead of the 2008-03-26 15:23:12 +00:00