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Date:      Sat, 1 Jun 1996 10:37:11 +1000
From:      Bruce Evans <bde@zeta.org.au>
To:        bde@zeta.org.au, terry@lambert.org
Cc:        davidg@Root.COM, hackers@freebsd.org, jgreco@solaria.sol.net, rashid@rk.ios.com
Subject:   Re: Breaking ffs - speed enhancement?
Message-ID:  <199606010037.KAA26374@godzilla.zeta.org.au>

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>> >There is a school of thought that says "shall be updated" in POSIX is
>> >not the same as "shall be committed to stable storage" (the traditional
>> >BSD implementation).
>> 
>> When was this traditional?

>It's just historical behaviour; has to do (in 4.3) with whether or
>not O_ASYNC is set or not.  The write is done, regardless; it *will*

This seems unlikely.  O_ASYNC has to do with SIGIO for sockets.  Perhaps
you mean O_FSYNC.  O_FSYNC is a no-op in 4.4Lite and in FreeBSD.  Perhaps
you mean MNT_ASYNC.  MNT_ASYNC is (almost?) a no-op in 4.4Lite but is
partly implemented in FreeBSD.

Bruce



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