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OpenCloudOS-Kernel
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NFS: remove RPC PipeFS mount point reference from blocklayout routines 

This is a cleanup patch. We don't need this reference anymore, because
blocklayout pipes dentries now creates and destroys in per-net operations and
on PipeFS mount/umount notification.
Note that nfs4blocklayout_register_net() now returns 0 instead of -ENOENT in
case of PipeFS superblock absence. This is ok, because blocklayout pipe dentry
will be created on PipeFS mount event.

Signed-off-by: Stanislav Kinsbursky <skinsbursky@parallels.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Stanislav Kinsbursky 2012-01-10 17:04:40 +04:00 committed by Trond Myklebust
parent 627f30668f
commit 2561d618ff
1 changed files with 1 additions and 8 deletions
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9
fs/nfs/blocklayout/blocklayout.c
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@ -1094,7 +1094,7 @@ static struct dentry *nfs4blocklayout_register_net(struct net *net,
pipefs_sb = rpc_get_sb_net(net);
if (!pipefs_sb)
return ERR_PTR(-ENOENT);
return NULL;
dentry = nfs4blocklayout_register_sb(pipefs_sb, pipe);
rpc_put_sb_net(net);
return dentry;
@ -1145,7 +1145,6 @@ static struct pernet_operations nfs4blocklayout_net_ops = {
static int __init nfs4blocklayout_init(void)
{
struct vfsmount *mnt;
int ret;
dprintk("%s: NFSv4 Block Layout Driver Registering...\n", __func__);
@ -1155,12 +1154,6 @@ static int __init nfs4blocklayout_init(void)
goto out;
init_waitqueue_head(&bl_wq);
mnt = rpc_get_mount();
if (IS_ERR(mnt)) {
ret = PTR_ERR(mnt);
goto out_remove;
}
ret = rpc_pipefs_notifier_register(&nfs4blocklayout_block);
if (ret)
goto out_remove;