Eliminate the loop and the call to pause(9) in vfs_vget_ino(). If vfs_busy(MBF_NOWAIT) failed, unlock the vnode and sleep in vfs_busy().
Eliminate the loop and the call to pause(9) in vfs_vget_ino(). If
vfs_busy(MBF_NOWAIT) failed, unlock the vnode and sleep in vfs_busy().

Suggested and reviewed by:	jeff
Tested by:	pho
MFC after:	3 weeks

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