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authorJeff Layton <jlayton@kernel.org>2025-04-08 09:43:15 -0400
committerAnna Schumaker <anna.schumaker@oracle.com>2025-05-19 10:14:29 -0400
commite5296637a322b840d772f88f4d58b4bc72b29058 (patch)
tree49a5f6f4e3414831375a9eb3d830481d9eeafc11
parentfadc0f3bb2de8c570ced6d9c1f97222213d93140 (diff)
nfs: add a refcount tracker for struct net as held by the nfs_client
These are long-held references to the netns, so make sure the refcount tracker is aware of them. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Anna Schumaker <anna.schumaker@oracle.com>
-rw-r--r--fs/nfs/client.c4
-rw-r--r--include/linux/nfs_fs_sb.h1
2 files changed, 3 insertions, 2 deletions
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 6d63b958c4bb..745f3c42f140 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -180,7 +180,7 @@ struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_init)
clp->cl_proto = cl_init->proto;
clp->cl_nconnect = cl_init->nconnect;
clp->cl_max_connect = cl_init->max_connect ? cl_init->max_connect : 1;
- clp->cl_net = get_net(cl_init->net);
+ clp->cl_net = get_net_track(cl_init->net, &clp->cl_ns_tracker, GFP_KERNEL);
#if IS_ENABLED(CONFIG_NFS_LOCALIO)
seqlock_init(&clp->cl_boot_lock);
@@ -250,7 +250,7 @@ void nfs_free_client(struct nfs_client *clp)
if (!IS_ERR(clp->cl_rpcclient))
rpc_shutdown_client(clp->cl_rpcclient);
- put_net(clp->cl_net);
+ put_net_track(clp->cl_net, &clp->cl_ns_tracker);
put_nfs_version(clp->cl_nfs_mod);
kfree(clp->cl_hostname);
kfree(clp->cl_acceptor);
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index ee03f3cef30c..e02f4c4e9cc4 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -125,6 +125,7 @@ struct nfs_client {
*/
char cl_ipaddr[48];
struct net *cl_net;
+ netns_tracker cl_ns_tracker;
struct list_head pending_cb_stateids;
struct rcu_head rcu;