From 37a034729ae611295bbb8e925333d4d54d7c1ebc Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 4 Oct 2006 02:15:44 -0700 Subject: [PATCH] [PATCH] knfsd: call lockd_down when closing a socket via a write to nfsd/portlist 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" Signed-off-by: Neil Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nfsd/nfsctl.c | 2 ++ net/sunrpc/svcsock.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c index 5c6a477..8399728 100644 --- a/fs/nfsd/nfsctl.c +++ b/fs/nfsd/nfsctl.c @@ -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; } diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c index cba85d1..4e0813b 100644 --- a/net/sunrpc/svcsock.c +++ b/net/sunrpc/svcsock.c @@ -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); -- 1.8.2.3