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Date:      Wed, 2 Apr 1997 19:09:17 -0500 (EST)
From:      "John S. Dyson" <toor@dyson.iquest.net>
To:        pmchen@eecs.umich.edu (Peter M. Chen)
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: VOP_PUTPAGES
Message-ID:  <199704030009.TAA03796@dyson.iquest.net>
In-Reply-To: <199704022320.SAA19709@life.eecs.umich.edu> from "Peter M. Chen" at "Apr 2, 97 06:20:42 pm"

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> I feel stupid for asking this, but what does VOP_PUTPAGES call?  I tried
> tracing through the maze of macros but ended up at vp->v_op[0], which I
> think is an error function.
> 
You are right!!! :-).  If there is no special putpages routine for
a filesystem, a default one is used in the pager.  This allows for
either layering for special filesystems, for higher performance
pageins/pageouts, or for the default usage of VOP_WRITE...

The default routine is near the end of vnode_pager.c.

John



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