Messages in this thread | | | Date | Sun, 10 Oct 1999 01:32:56 -0400 (EDT) | From | Alexander Viro <> | Subject | Re: [OT] where you can mount devfs |
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On Sun, 10 Oct 1999, Nathan Hand wrote:
> Mounting devfs on /proc/devices also introduces a heap of code which > doesn't go through VFS (Viro's concern).
Where the heck does this 'doesn't go through VFS' come from? It does, it just mirrors the VFS structures below the surface. Unfortunately it creates a pile of problems with the revalidation code which VFS doesn't really support (it's _not_ a devfs-specific problem). Side channel with register/unregister creates problems, all right, but the real point being that devfs manages to touch _very_ sore point of VFS. BTW, the other side of said sore point regulary resurfaces in knfsd - part of stale fhandles processing suffers badly from that. And I don't need to explain why knfsd that doesn't compile for several releases is _not_ an option, do I? It's ugly, entangled and messy. Normal filesystems will not care for modifications in that area and anything that will... well, doesn't make me happy.
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