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[PATCH] knfsd: call lockd_down when closing a socket via a write to nfsd/portlist

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The refcount that nfsd holds on lockd is based on the number of open sockets.
So when we close a socket, we should decrement the ref (with lockd_down).

Currently when a socket is closed via writing to the portlist file, that
doesn't happen.

So: make sure we get an error return if the socket that was requested does is
not found, and call lockd_down if it was.

Cc: "J. Bruce Fields" <bfields@fieldses.org>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
NeilBrown 2006-10-04 02:15:44 -07:00 committed by Linus Torvalds
parent 7ed94296a6
commit 37a034729a
2 changed files with 4 additions and 0 deletions
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2
fs/nfsd/nfsctl.c
View file

@ -545,6 +545,8 @@ static ssize_t write_ports(struct file *file, char *buf, size_t size)
if (nfsd_serv)
len = svc_sock_names(buf, nfsd_serv, toclose);
unlock_kernel();
if (len >= 0)
lockd_down();
kfree(toclose);
return len;
}

2
net/sunrpc/svcsock.c
View file

@ -493,6 +493,8 @@ svc_sock_names(char *buf, struct svc_serv *serv, char *toclose)
spin_unlock(&serv->sv_lock);
if (closesk)
svc_delete_socket(closesk);
else if (toclose)
return -ENOENT;
return len;
}
EXPORT_SYMBOL(svc_sock_names);