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From:   Scott Mayhew <smayhew@redhat.com>
To:     anna.schumaker@netapp.com, trond.myklebust@hammerspace.com
Cc:     dhowells@redhat.com, viro@zeniv.linux.org.uk,
        linux-nfs@vger.kernel.org, linux-fsdevel@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH v5 08/27] nfs: stash nfs_subversion reference into nfs_mount_info
Date:   Wed, 20 Nov 2019 10:27:31 -0500
Message-Id: <20191120152750.6880-9-smayhew@redhat.com>
In-Reply-To: <20191120152750.6880-1-smayhew@redhat.com>
References: <20191120152750.6880-1-smayhew@redhat.com>
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From: Al Viro <viro@zeniv.linux.org.uk>

That will allow to get rid of passing those references around in
quite a few places.  Moreover, that will allow to merge xdev and
remote file_system_type.

Reviewed-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 fs/nfs/internal.h  | 1 +
 fs/nfs/namespace.c | 6 +++---
 fs/nfs/nfs4super.c | 1 +
 fs/nfs/super.c     | 1 +
 4 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 8eb79f104a7d..e7fd747d11a2 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -142,6 +142,7 @@ struct nfs_mount_info {
 =09struct nfs_clone_mount *cloned;
 =09struct nfs_server *server;
 =09struct nfs_fh *mntfh;
+=09struct nfs_subversion *nfs_mod;
 };
=20
 extern int nfs_mount(struct nfs_mount_request *info);
diff --git a/fs/nfs/namespace.c b/fs/nfs/namespace.c
index 7c78e6956639..0d0587ed7d94 100644
--- a/fs/nfs/namespace.c
+++ b/fs/nfs/namespace.c
@@ -233,8 +233,8 @@ struct vfsmount *nfs_do_submount(struct dentry *dentry,=
 struct nfs_fh *fh,
 =09=09.set_security =3D nfs_clone_sb_security,
 =09=09.cloned =3D &mountdata,
 =09=09.mntfh =3D fh,
+=09=09.nfs_mod =3D NFS_SB(sb)->nfs_client->cl_nfs_mod,
 =09};
-=09struct nfs_subversion *nfs_mod =3D NFS_SB(sb)->nfs_client->cl_nfs_mod;
 =09struct nfs_server *server;
 =09struct vfsmount *mnt;
 =09char *page =3D (char *) __get_free_page(GFP_USER);
@@ -243,8 +243,8 @@ struct vfsmount *nfs_do_submount(struct dentry *dentry,=
 struct nfs_fh *fh,
 =09if (page =3D=3D NULL)
 =09=09return ERR_PTR(-ENOMEM);
=20
-=09server =3D nfs_mod->rpc_ops->clone_server(NFS_SB(sb), fh,
-=09=09=09=09=09=09fattr, authflavor);
+=09server =3D mount_info.nfs_mod->rpc_ops->clone_server(NFS_SB(sb), fh,
+=09=09=09=09=09=09=09   fattr, authflavor);
 =09if (IS_ERR(server))
 =09=09return ERR_CAST(server);
=20
diff --git a/fs/nfs/nfs4super.c b/fs/nfs/nfs4super.c
index 91ba1b6741dc..88d83cab8e9b 100644
--- a/fs/nfs/nfs4super.c
+++ b/fs/nfs/nfs4super.c
@@ -248,6 +248,7 @@ static struct dentry *nfs4_referral_mount(struct file_s=
ystem_type *fs_type,
 =09=09.fill_super =3D nfs_fill_super,
 =09=09.set_security =3D nfs_clone_sb_security,
 =09=09.cloned =3D data,
+=09=09.nfs_mod =3D &nfs_v4,
 =09};
 =09struct dentry *res;
=20
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 32d2ec237c57..20de67933527 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -2761,6 +2761,7 @@ struct dentry *nfs_fs_mount(struct file_system_type *=
fs_type,
 =09=09mntroot =3D ERR_CAST(nfs_mod);
 =09=09goto out;
 =09}
+=09mount_info.nfs_mod =3D nfs_mod;
=20
 =09mntroot =3D nfs_mod->rpc_ops->try_mount(flags, dev_name, &mount_info, n=
fs_mod);
=20
--=20
2.17.2