From f2d0d85e58099d518cb50b1c95fc1fc62bbce1b8 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 2 Feb 2007 14:46:09 -0800 Subject: [PATCH] NFSv4: Fix Oops in nfs4_create_referral_server The filehandle that is passed into nfs4_create_referral_server is not initialised. The expectation is that nfs4_create_referral_server will initialise it, and return it to the caller. Signed-off-by: Trond Myklebust --- fs/nfs/client.c | 9 +++++++-- fs/nfs/super.c | 2 +- 2 files changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 23ab145daa2d..a3191f023490 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -1030,7 +1030,7 @@ error: * Create an NFS4 referral server record */ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data, - struct nfs_fh *fh) + struct nfs_fh *mntfh) { struct nfs_client *parent_client; struct nfs_server *server, *parent_server; @@ -1069,8 +1069,13 @@ struct nfs_server *nfs4_create_referral_server(struct nfs_clone_mount *data, BUG_ON(!server->nfs_client->rpc_ops); BUG_ON(!server->nfs_client->rpc_ops->file_inode_ops); + /* Probe the root fh to retrieve its FSID and filehandle */ + error = nfs4_path_walk(server, mntfh, data->mnt_path); + if (error < 0) + goto error; + /* probe the filesystem info for this server filesystem */ - error = nfs_probe_fsinfo(server, fh, &fattr); + error = nfs_probe_fsinfo(server, mntfh, &fattr); if (error < 0) goto error; diff --git a/fs/nfs/super.c b/fs/nfs/super.c index 28108c82b887..89da0a38c12c 100644 --- a/fs/nfs/super.c +++ b/fs/nfs/super.c @@ -1044,7 +1044,7 @@ static int nfs4_referral_get_sb(struct file_system_type *fs_type, int flags, nfs4_fill_super(s); } - mntroot = nfs4_get_root(s, data->fh); + mntroot = nfs4_get_root(s, &mntfh); if (IS_ERR(mntroot)) { error = PTR_ERR(mntroot); goto error_splat_super; -- 2.20.1