summaryrefslogtreecommitdiff
path: root/fs/nfs/idmap.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/nfs/idmap.c')
-rw-r--r--fs/nfs/idmap.c30
1 files changed, 21 insertions, 9 deletions
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index ba3019f5934c..b5b86a05059c 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -415,7 +415,7 @@ static int __nfs_idmap_register(struct dentry *dir,
static void nfs_idmap_unregister(struct nfs_client *clp,
struct rpc_pipe *pipe)
{
- struct net *net = clp->net;
+ struct net *net = clp->cl_net;
struct super_block *pipefs_sb;
pipefs_sb = rpc_get_sb_net(net);
@@ -429,7 +429,7 @@ static int nfs_idmap_register(struct nfs_client *clp,
struct idmap *idmap,
struct rpc_pipe *pipe)
{
- struct net *net = clp->net;
+ struct net *net = clp->cl_net;
struct super_block *pipefs_sb;
int err = 0;
@@ -530,9 +530,25 @@ static struct nfs_client *nfs_get_client_for_event(struct net *net, int event)
struct nfs_net *nn = net_generic(net, nfs_net_id);
struct dentry *cl_dentry;
struct nfs_client *clp;
+ int err;
+restart:
spin_lock(&nn->nfs_client_lock);
list_for_each_entry(clp, &nn->nfs_client_list, cl_share_link) {
+ /* Wait for initialisation to finish */
+ if (clp->cl_cons_state == NFS_CS_INITING) {
+ atomic_inc(&clp->cl_count);
+ spin_unlock(&nn->nfs_client_lock);
+ err = nfs_wait_client_init_complete(clp);
+ nfs_put_client(clp);
+ if (err)
+ return NULL;
+ goto restart;
+ }
+ /* Skip nfs_clients that failed to initialise */
+ if (clp->cl_cons_state < 0)
+ continue;
+ smp_rmb();
if (clp->rpc_ops != &nfs_v4_clientops)
continue;
cl_dentry = clp->cl_idmap->idmap_pipe->dentry;
@@ -640,20 +656,16 @@ static int nfs_idmap_legacy_upcall(struct key_construction *cons,
struct idmap_msg *im;
struct idmap *idmap = (struct idmap *)aux;
struct key *key = cons->key;
- int ret;
+ int ret = -ENOMEM;
/* msg and im are freed in idmap_pipe_destroy_msg */
msg = kmalloc(sizeof(*msg), GFP_KERNEL);
- if (IS_ERR(msg)) {
- ret = PTR_ERR(msg);
+ if (!msg)
goto out0;
- }
im = kmalloc(sizeof(*im), GFP_KERNEL);
- if (IS_ERR(im)) {
- ret = PTR_ERR(im);
+ if (!im)
goto out1;
- }
ret = nfs_idmap_prepare_message(key->description, im, msg);
if (ret < 0)