To: Chris Wright <chrisw@osdl.org>
Cc: viro@parcelfarce.linux.theplanet.co.uk, discuss@x86-64.org,
       linux-kernel@vger.kernel.org, jmorris@redhat.com
Subject: Re: f_ops flag to speed up compatible ioctls in linux kernel
References: <20040901072245.GF13749@mellanox.co.il>
	<20040901073218.GQ16297@parcelfarce.linux.theplanet.co.uk>
	<52zn4a0ysg.fsf@topspin.com> <20040901110225.D1973@build.pdx.osdl.net>
	<52llftzp4m.fsf@topspin.com> <20040901170800.K1924@build.pdx.osdl.net>
	<20040901190122.L1924@build.pdx.osdl.net>
From: Roland Dreier <roland@topspin.com>
Date: Wed, 01 Sep 2004 20:46:14 -0700
In-Reply-To: <20040901190122.L1924@build.pdx.osdl.net> (Chris Wright's
 message of "Wed, 1 Sep 2004 19:01:22 -0700")
Message-ID: <52hdqhwcxl.fsf@topspin.com>
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    Chris> Trivial addition of allowing llseek to become transaction
    Chris> barrier increases this to ~300,000 transactions per second.
    Chris> Patch below gives you some basic idea.

Wow, great stuff.  Thanks a lot for taking the time to try this out.
Also thanks for the original suggestion -- the more I think about the
private filesystem idea the more I like it.

Do you think simple_transaction_llseek() should be merged upstream?
It would definitely make the simple_transaction stuff more useful for
my application.

Thanks,
  Roland
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