Date: Fri, 7 Jul 2000 12:51:30 -0700 (PDT) From: Matthew Dillon <dillon@apollo.backplane.com> To: Marius Bendiksen <mbendiks@eunet.no> Cc: Adrian Chadd <adrian@FreeBSD.ORG>, Alfred Perlstein <bright@wintelcom.net>, freebsd-arch@FreeBSD.ORG Subject: Re: Alterations to vops Message-ID: <200007071951.MAA01257@apollo.backplane.com> References: <Pine.BSF.4.05.10007071936010.74828-100000@login-1.eunet.no>
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:Like I stated in the original post; currently, certain operations scan
:through a number of blocks in kernel space. I would like to be able to
:add an off_t to the argument list of said operations, set to VNOVAL by
:the caller, then initialized by the VOP, and incremented by it on each
:pass. The VOP will return a new error code (ERETRY) when the pass only
:partially completed, and the library will iterate.
:
:Marius
You are assuming that such scans are long enough to cause a problem.
The general answer to that is: 99.99% of the scans done inside the
kernel are very, very short, so adding all sorts of functionality to
try to break them into pieces is not going to gain us anything.
-Matt
Matthew Dillon
<dillon@backplane.com>
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