Re: Locking strategy for device deletion (also see PR kern/48536)

[mlelstv%serpens.de@localhost (Michael van Elst)]

paul%whooppee.com@localhost (Paul Goyette) writes:

>> See misfs/specfs/spec_vnops.c::spec_close().

>yes, that would certainly explain the situation.  It does, however, make 
>it rather difficult to maintain a valid ref-count!

specfs does the open refcounting. The device only has a single bit, open
sets it and close clears it. That bit is added to a common counter
that is used for other references.


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                                Michael van Elst
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                                "A potential Snark may lurk in every tree."