At Sun, 5 Dec 2021 10:38:54 +0100, "J. Hannken-Illjes" <hannken%mailbox.org@localhost> wrote: Subject: Re: mount_union(8) vs. open(O_RDWR) > > There are (up to) three vnodes involved: > > - The union vnode attached to the union mount. Ah, OK, I think I understand. Just to be sure: Does that mean a vnode representing the "virtual" object in the union filesystem itself? I.e. the vnode resulting from a namei() lookup within the namespace of the union filesystem? > Operation union_access() reuses "vp", it starts as union vnode > and then gets assigned the upper and then the lower vnode making > this operation difficult to read. Indeed, that code is unnecessarily obtuse. -- Greg A. Woods <gwoods%acm.org@localhost> Kelowna, BC +1 250 762-7675 RoboHack <woods%robohack.ca@localhost> Planix, Inc. <woods%planix.com@localhost> Avoncote Farms <woods%avoncote.ca@localhost>
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