From 6cdef8a6ee748ec522aabee049633b16b4115f73 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Jan 2022 12:09:35 -0800 Subject: SUNRPC: add netns refcount tracker to struct svc_xprt struct svc_xprt holds a long lived reference to a netns, it is worth tracking it. Signed-off-by: Eric Dumazet Acked-by: Chuck Lever Signed-off-by: David S. Miller --- include/linux/sunrpc/svc_xprt.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/sunrpc/svc_xprt.h b/include/linux/sunrpc/svc_xprt.h index 571f605bc91e..382af90320ac 100644 --- a/include/linux/sunrpc/svc_xprt.h +++ b/include/linux/sunrpc/svc_xprt.h @@ -88,6 +88,7 @@ struct svc_xprt { struct list_head xpt_users; /* callbacks on free */ struct net *xpt_net; + netns_tracker ns_tracker; const struct cred *xpt_cred; struct rpc_xprt *xpt_bc_xprt; /* NFSv4.1 backchannel */ struct rpc_xprt_switch *xpt_bc_xps; /* NFSv4.1 backchannel */ -- cgit v1.2.3 From b9a0d6d143ec63132beff04802578c499083f87c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 27 Jan 2022 12:09:37 -0800 Subject: SUNRPC: add netns refcount tracker to struct rpc_xprt Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- include/linux/sunrpc/xprt.h | 1 + net/sunrpc/xprt.c | 4 ++-- 2 files changed, 3 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/xprt.h b/include/linux/sunrpc/xprt.h index 955ea4d7af0b..3cdc8d878d81 100644 --- a/include/linux/sunrpc/xprt.h +++ b/include/linux/sunrpc/xprt.h @@ -284,6 +284,7 @@ struct rpc_xprt { } stat; struct net *xprt_net; + netns_tracker ns_tracker; const char *servername; const char *address_strings[RPC_DISPLAY_MAX]; #if IS_ENABLED(CONFIG_SUNRPC_DEBUG) diff --git a/net/sunrpc/xprt.c b/net/sunrpc/xprt.c index a02de2bddb28..5af484d6ba5e 100644 --- a/net/sunrpc/xprt.c +++ b/net/sunrpc/xprt.c @@ -1835,7 +1835,7 @@ EXPORT_SYMBOL_GPL(xprt_alloc); void xprt_free(struct rpc_xprt *xprt) { - put_net(xprt->xprt_net); + put_net_track(xprt->xprt_net, &xprt->ns_tracker); xprt_free_all_slots(xprt); xprt_free_id(xprt); rpc_sysfs_xprt_destroy(xprt); @@ -2027,7 +2027,7 @@ static void xprt_init(struct rpc_xprt *xprt, struct net *net) xprt_init_xid(xprt); - xprt->xprt_net = get_net(net); + xprt->xprt_net = get_net_track(net, &xprt->ns_tracker, GFP_KERNEL); } /** -- cgit v1.2.3