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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: Bryan Schumaker <bjschuma@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Bryan Schumaker 2012-05-10 15:07:39 -04:00 committed by Trond Myklebust
parent db83335191
commit 486aa699ff
1 changed files with 27 additions and 19 deletions
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46
fs/nfs/super.c
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@ -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,
@ -1680,8 +1683,8 @@ 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,
struct nfs_fh *root_fh)
static int nfs_request_mount(struct nfs_parsed_mount_data *args,
struct nfs_fh *root_fh)
{
rpc_authflavor_t server_authlist[NFS_MAX_SECFLAVORS];
unsigned int server_authlist_len = ARRAY_SIZE(server_authlist);
@ -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);