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Date:      Sun, 19 Sep 1999 21:22:27 -0700
From:      John-Mark Gurney <gurney_j@efn.org>
To:        Matthew Dillon <dillon@apollo.backplane.com>
Cc:        Peter Wemm <peter@netplex.com.au>, Matthew Jacob <mjacob@feral.com>, Poul-Henning Kamp <phk@critter.freebsd.dk>, dg@root.com, Greg Lehey <grog@lemis.com>, cvs-committers@FreeBSD.org, cvs-all@FreeBSD.org
Subject:   Re: User block device access (was: cvs commit: src/sys/miscfs/specfs spec_vnops.c src/sys/sys vnode.h src/sys/kern vfs_subr.c)
Message-ID:  <19990919212227.21537@hydrogen.fircrest.net>
In-Reply-To: <199909191911.MAA73893@apollo.backplane.com>; from Matthew Dillon on Sun, Sep 19, 1999 at 12:11:32PM -0700
References:  <19990919183556.802C81CA7@overcee.netplex.com.au> <199909191911.MAA73893@apollo.backplane.com>

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Matthew Dillon scribbled this message on Sep 19:
>     People who don't care can use mmap() (which is inherently asynchronous
>     in regards to writes).  People who do care can use write() and get
>     instant gratification.

hmmm... I think that the application should recieve a signal of some
sort (such as SIGBUS) if the mmap'd area can't be synced because of a
write error, of course we would need to have a mechanism for the
application to find out about the problem...

-- 
  John-Mark Gurney				Voice: +1 408 975 9651
  Cu Networking					  

  "The soul contains in itself the event that shall presently befall it.
  The event is only the actualizing of its thought." -- Ralph Waldo Emerson


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