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Date: Tue, 1 Jun 2010 16:50:09 GMT
From: Adam Nowacki <nowak@xpam.de>
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Cc:
Subject: kern/147292: readahead missing in nfs client options filter list
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X-List-Received-Date: Tue, 01 Jun 2010 17:00:10 -0000
>Number: 147292
>Category: kern
>Synopsis: readahead missing in nfs client options filter list
>Confidential: no
>Severity: non-critical
>Priority: medium
>Responsible: freebsd-bugs
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Tue Jun 01 17:00:09 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator: Adam Nowacki
>Release: releng_8_0
>Organization:
>Environment:
FreeBSD storage 8.0-RELEASE-p3 FreeBSD 8.0-RELEASE-p3 #1: Mon May 31 23:45:45 UTC 2010 root@storage:/usr/obj/usr/src/sys/GENERIC amd64
>Description:
In sys/nfsclient/nfs_vfsops.c:
static const char *nfs_opts[] = { "from", "nfs_args",
"noatime", "noexec", "suiddir", "nosuid", "nosymfollow", "union",
"noclusterr", "noclusterw", "multilabel", "acls", "force", "update",
"async", "dumbtimer", "noconn", "nolockd", "intr", "rdirplus", "resvport",
"readdirsize", "soft", "hard", "mntudp", "tcp", "udp", "wsize", "rsize",
"retrans", "acregmin", "acregmax", "acdirmin", "acdirmax",
"deadthresh", "hostname", "timeout", "addr", "fh", "nfsv3", "sec",
"maxgroups", "principal",
NULL };
this list is missing "readahead" option resulting in:
# /sbin/mount_nfs -o nfsv3,rw,async,noatime,noauto,mntudp,readahead=2,rsize=32768,wsize=32768 192.168.0.3:/mnt/ls0 /mnt/nfs/u1/mnt/ls0
mount_nfs: /mnt/nfs/u1/mnt/ls0, mount option <readahead> is unknown: Invalid argument
>How-To-Repeat:
mount a nfs with -o readahead=1
>Fix:
add "readahead" to the list of nfs options (nfs_opts), the rest of the code already appears to be there
Patch attached with submission follows:
Index: sys/nfsclient/nfs_vfsops.c
===================================================================
RCS file: /home/ncvs/src/sys/nfsclient/nfs_vfsops.c,v
retrieving revision 1.234
diff -u -r1.234 nfs_vfsops.c
--- sys/nfsclient/nfs_vfsops.c 27 May 2010 03:15:04 -0000 1.234
+++ sys/nfsclient/nfs_vfsops.c 1 Jun 2010 16:48:01 -0000
@@ -776,10 +776,10 @@
"noatime", "noexec", "suiddir", "nosuid", "nosymfollow", "union",
"noclusterr", "noclusterw", "multilabel", "acls", "force", "update",
"async", "dumbtimer", "noconn", "nolockd", "intr", "rdirplus", "resvport",
- "readdirsize", "soft", "hard", "mntudp", "tcp", "udp", "wsize", "rsize",
- "retrans", "acregmin", "acregmax", "acdirmin", "acdirmax",
- "deadthresh", "hostname", "timeout", "addr", "fh", "nfsv3", "sec",
- "maxgroups", "principal", "negnametimeo",
+ "readdirsize", "readahead", "soft", "hard", "mntudp", "tcp", "udp",
+ "wsize", "rsize", "retrans", "acregmin", "acregmax", "acdirmin",
+ "acdirmax", "deadthresh", "hostname", "timeout", "addr", "fh", "nfsv3",
+ "sec", "maxgroups", "principal", "negnametimeo",
NULL };
/*
>Release-Note:
>Audit-Trail:
>Unformatted: