From 7b147f1ff267d12e0d189ca3d4156ed5a76b8d99 Mon Sep 17 00:00:00 2001 From: Stanislav Kinsbursky Date: Tue, 31 Jan 2012 14:09:17 +0400 Subject: SUNRPC: service destruction in network namespace context v2: Added comment to BUG_ON's in svc_destroy() to make code looks clearer. This patch introduces network namespace filter for service destruction function. Nothing special here - just do exactly the same operations, but only for tranports in passed networks namespace context. BTW, BUG_ON() checks for empty service transports lists were returned into svc_destroy() function. This is because of swithing generic svc_close_all() to networks namespace dependable svc_close_net(). Signed-off-by: Stanislav Kinsbursky Signed-off-by: Trond Myklebust --- net/sunrpc/svc_xprt.c | 27 +++++++++++++++++---------- 1 file changed, 17 insertions(+), 10 deletions(-) (limited to 'net/sunrpc/svc_xprt.c') diff --git a/net/sunrpc/svc_xprt.c b/net/sunrpc/svc_xprt.c index 493e70b72b71..4bda09d7e1a4 100644 --- a/net/sunrpc/svc_xprt.c +++ b/net/sunrpc/svc_xprt.c @@ -922,17 +922,19 @@ void svc_close_xprt(struct svc_xprt *xprt) } EXPORT_SYMBOL_GPL(svc_close_xprt); -static void svc_close_list(struct list_head *xprt_list) +static void svc_close_list(struct list_head *xprt_list, struct net *net) { struct svc_xprt *xprt; list_for_each_entry(xprt, xprt_list, xpt_list) { + if (xprt->xpt_net != net) + continue; set_bit(XPT_CLOSE, &xprt->xpt_flags); set_bit(XPT_BUSY, &xprt->xpt_flags); } } -static void svc_clear_pools(struct svc_serv *serv) +static void svc_clear_pools(struct svc_serv *serv, struct net *net) { struct svc_pool *pool; struct svc_xprt *xprt; @@ -944,36 +946,41 @@ static void svc_clear_pools(struct svc_serv *serv) spin_lock_bh(&pool->sp_lock); list_for_each_entry_safe(xprt, tmp, &pool->sp_sockets, xpt_ready) { + if (xprt->xpt_net != net) + continue; list_del_init(&xprt->xpt_ready); } spin_unlock_bh(&pool->sp_lock); } } -static void svc_clear_list(struct list_head *xprt_list) +static void svc_clear_list(struct list_head *xprt_list, struct net *net) { struct svc_xprt *xprt; struct svc_xprt *tmp; list_for_each_entry_safe(xprt, tmp, xprt_list, xpt_list) { + if (xprt->xpt_net != net) + continue; svc_delete_xprt(xprt); } - BUG_ON(!list_empty(xprt_list)); + list_for_each_entry(xprt, xprt_list, xpt_list) + BUG_ON(xprt->xpt_net == net); } -void svc_close_all(struct svc_serv *serv) +void svc_close_net(struct svc_serv *serv, struct net *net) { - svc_close_list(&serv->sv_tempsocks); - svc_close_list(&serv->sv_permsocks); + svc_close_list(&serv->sv_tempsocks, net); + svc_close_list(&serv->sv_permsocks, net); - svc_clear_pools(serv); + svc_clear_pools(serv, net); /* * At this point the sp_sockets lists will stay empty, since * svc_enqueue will not add new entries without taking the * sp_lock and checking XPT_BUSY. */ - svc_clear_list(&serv->sv_tempsocks); - svc_clear_list(&serv->sv_permsocks); + svc_clear_list(&serv->sv_tempsocks, net); + svc_clear_list(&serv->sv_permsocks, net); } /* -- cgit v1.2.3