Lines Matching full:lower

48  * all lower-layer vnodes, not just over directory vnodes.
66  * of the lower vfs (target-pn) and the pathname where the null
75  * simply bypassing all possible operations to the lower layer
81  * handling by the lower layer.  It begins by examining vnode
83  * lower-layer equivlants.  It then invokes the operation
84  * on the lower layer.  Finally, it replaces the null-nodes
107  * Mounting associates the null layer with a lower layer,
127  * to the lower layer which would return a vnode representing
145  * INVOKING OPERATIONS ON LOWER LAYERS
147  * There are two techniques to invoke operations on a lower layer
151  * the operation arguments "correct" for the lower layer
152  * by mapping a vnode arguments to the lower layer.
156  * currently being handled on the lower layer.  It has the advantage
161  * the lower layer with the VOP_OPERATIONNAME interface.
163  * arbitrary operations on the lower layer.  The disadvantage
204  * by the upper node, not the lower one, so we must handle these
264 			 * The upper vnode reference to the lower
266 			 * pointer to the lower vnode alive.  If lower
285 	 * Call the operation on the lower layer
313 			 * must move lock ownership from lower to
338 	 * (Assumes that the lower layer always returns
405 	 * Renames in the lower mounts might create an inconsistent
406 	 * configuration where lower vnode is moved out of the
409 	 * which cannot be handled by VOP, at least passing over lower
429 	 * VOP_LOOKUP() on lower vnode may unlock ldvp, which allows
444 		 * lower fs VOP_LOOKUP() does not restore the locking
617  * Increasing refcount of lower vnode is needed at least for the case
618  * when lower FS is NFS to do sillyrename if the file is in use.
645  * We handle this to eliminate null FS to lower FS
756 	 * If we're still active we must ask the lower layer to
834  * Do not allow the VOP_INACTIVE to be passed to the lower layer,
835  * since the reference count on the lower vnode is not related to
855 		 * nullfs vnodes is not enabled, or the lower vnode is
857 		 * the lower vnodes.
885  * Now, the nullfs vnode and, due to the sharing lock, the lower
915 	 * to the lower vnode.  If this is a reclamation due to the
1066  * Avoid standard bypass, since lower dvp and vp could be no longer