Re: [9fans] clunk clunk

[Charles Forsyth]

with that change, can't the following fail from time to time:

        chmod +al events
        echo first >>events
        echo second >>events

because the first clunk can be sent after the second open attempt;
similarly for exclusive-use devices.
it could avoid asynchronous clunk where QTEXCL is set, but that doesn't
help exclusive-use devices (although there aren't many of the latter)