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To: Alfred Perlstein <bright@mu.org>
From: "Poul-Henning Kamp" <phk@phk.freebsd.dk>
In-Reply-To: Your message of "Sat, 26 Jul 2003 19:00:00 PDT."
             <20030727020000.GA10457@elvis.mu.org> 
Date: Sun, 27 Jul 2003 08:44:07 +0200
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Subject: Re: cvs commit: src/sys/coda coda_fbsd.c coda_vnops.c
	src/sys/compat/linux linux_misc.c src/sys/dev/raidframe
	rf_freebsdkintf.c src/sys/fs/hpfs hpfs_vfsops.c src/sys/fs/msdosfs
	msdosfs_vfsops.c src/sys/fs/ntfs ntfs_vfsops.c src/sys/fs/nwfs ... 
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In message <20030727020000.GA10457@elvis.mu.org>, Alfred Perlstein writes:

>I thought you were doing the "each device open gets a cookie" thing
>from linux via some hack.  But instead it appears to be some weird
>optimization.  Nevermind I guess.

Not quite that bad, my aim is to not take the detour over vnodes for
devices opened from userland (I posted a "proof of concept" patch
for this some weeks ago.)  This gains us 4-6% wall-clock on fsck.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.