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Commit 486aa699 authored by Bryan Schumaker's avatar Bryan Schumaker Committed by Trond Myklebust
Browse files

NFS: Create a new nfs_try_mount() 



This function returns the same same return type as nfs4_try_mount() so
they two can be more easily substituted.

Signed-off-by: default avatarBryan Schumaker <bjschuma@netapp.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
parent db833351

fs/nfs/super.c

+27 −19
Original line number Diff line number Diff line
@@ -290,6 +290,9 @@ static int nfs_show_options(struct seq_file *, struct dentry *); 
static int  nfs_show_devname(struct seq_file *, struct dentry *);

static int  nfs_show_path(struct seq_file *, struct dentry *);

static int  nfs_show_stats(struct seq_file *, struct dentry *);

static struct dentry *nfs_fs_mount_common(struct file_system_type *,

		struct nfs_server *, int, const char *, struct nfs_fh *,

		struct nfs_mount_info *);

static struct dentry *nfs_fs_mount(struct file_system_type *,

		int, const char *, void *);

static struct dentry *nfs_xdev_mount(struct file_system_type *fs_type,
@@ -1680,7 +1683,7 @@ static int nfs_walk_authlist(struct nfs_parsed_mount_data *args, 
 * Use the remote server's MOUNT service to request the NFS file handle

 * corresponding to the provided path.

 */

static int nfs_try_mount(struct nfs_parsed_mount_data *args,

static int nfs_request_mount(struct nfs_parsed_mount_data *args,

			     struct nfs_fh *root_fh)

{

	rpc_authflavor_t server_authlist[NFS_MAX_SECFLAVORS];
@@ -1744,6 +1747,25 @@ static int nfs_try_mount(struct nfs_parsed_mount_data *args, 
	return nfs_walk_authlist(args, &request);

}



static struct dentry *nfs_try_mount(int flags, const char *dev_name,

				    struct nfs_fh *mntfh,

				    struct nfs_mount_info *mount_info)

{

	int status;

	struct nfs_server *server;



	status = nfs_request_mount(mount_info->parsed, mntfh);

	if (status)

		return ERR_PTR(status);



	/* Get a volume representation */

	server = nfs_create_server(mount_info->parsed, mntfh);

	if (IS_ERR(server))

		return ERR_CAST(server);



	return nfs_fs_mount_common(&nfs_fs_type, server, flags, dev_name, mntfh, mount_info);

}



/*

 * Split "dev_name" into "hostname:export_path".

 *
@@ -1966,11 +1988,6 @@ static int nfs_validate_mount_data(void *options, 
					   PAGE_SIZE,

					   &args->nfs_server.export_path,

					   NFS_MAXPATHLEN);

		if (!status)

			status = nfs_try_mount(args, mntfh);



		kfree(args->nfs_server.export_path);

		args->nfs_server.export_path = NULL;



		if (status)

			return status;
@@ -2405,7 +2422,6 @@ static struct dentry *nfs_fs_mount_common(struct file_system_type *fs_type, 
static struct dentry *nfs_fs_mount(struct file_system_type *fs_type,

	int flags, const char *dev_name, void *raw_data)

{

	struct nfs_server *server;

	struct nfs_parsed_mount_data *data = NULL;

	struct nfs_mount_info mount_info = {

		.fill_super = nfs_fill_super,
@@ -2429,20 +2445,12 @@ static struct dentry *nfs_fs_mount(struct file_system_type *fs_type, 
	mount_info.parsed = data;



#ifdef CONFIG_NFS_V4

	if (data->version == 4) {

	if (data->version == 4)

		mntroot = nfs4_try_mount(flags, dev_name, data);

		goto out;

	}

	else

#endif	/* CONFIG_NFS_V4 */

		mntroot = nfs_try_mount(flags, dev_name, mntfh, &mount_info);



	/* Get a volume representation */

	server = nfs_create_server(data, mntfh);

	if (IS_ERR(server)) {

		mntroot = ERR_CAST(server);

		goto out;

	}



	mntroot = nfs_fs_mount_common(fs_type, server, flags, dev_name, mntfh, &mount_info);

out:

	nfs_free_parsed_mount_data(data);

	nfs_free_fhandle(mntfh);