Date: Sun, 1 Nov 1998 18:36:17 -0800 (PST) From: Peter Wemm <peter@FreeBSD.ORG> To: cvs-committers@FreeBSD.ORG, cvs-all@FreeBSD.ORG Subject: cvs commit: src/sys/kern vfs_vnops.c Message-ID: <199811020236.SAA00545@freefall.freebsd.org>
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peter 1998/11/01 18:36:17 PST
Modified files:
sys/kern vfs_vnops.c
Log:
Only do one VOP_ACCESS() per open() instead of two. This should reduce
the NFSv3 ACCESS RPC problems a little for busy clients that do a lot of
open/close. The nfs code could probably cache the results, but I'm not
sure whether this would be legal or useful. The problem is that with
a CPU farm, on each open there would be a lookup, getattr then access RPC
then the read/write RPC activity. Caching the access results probably
isn't going to help much if the clients access lots of files. Having the
nfs_access() routine interpret the getattr results is a bit of a hack, but
it's how NFSv2 is done and it might be OK for a mount attribute for v3.
Revision Changes Path
1.60 +9 -8 src/sys/kern/vfs_vnops.c
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