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-rw-r--r--fs/nfs/super.c49
1 files changed, 24 insertions, 25 deletions
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 134777406ee3..e463967aafb8 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -41,7 +41,6 @@
#include <linux/lockd/bind.h>
#include <linux/seq_file.h>
#include <linux/mount.h>
-#include <linux/mnt_namespace.h>
#include <linux/namei.h>
#include <linux/nfs_idmap.h>
#include <linux/vfs.h>
@@ -263,10 +262,10 @@ static match_table_t nfs_local_lock_tokens = {
static void nfs_umount_begin(struct super_block *);
static int nfs_statfs(struct dentry *, struct kstatfs *);
-static int nfs_show_options(struct seq_file *, struct vfsmount *);
-static int nfs_show_devname(struct seq_file *, struct vfsmount *);
-static int nfs_show_path(struct seq_file *, struct vfsmount *);
-static int nfs_show_stats(struct seq_file *, struct vfsmount *);
+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(struct file_system_type *,
int, const char *, void *);
static struct dentry *nfs_xdev_mount(struct file_system_type *fs_type,
@@ -721,9 +720,9 @@ static void nfs_show_mount_options(struct seq_file *m, struct nfs_server *nfss,
/*
* Describe the mount options on this VFS mountpoint
*/
-static int nfs_show_options(struct seq_file *m, struct vfsmount *mnt)
+static int nfs_show_options(struct seq_file *m, struct dentry *root)
{
- struct nfs_server *nfss = NFS_SB(mnt->mnt_sb);
+ struct nfs_server *nfss = NFS_SB(root->d_sb);
nfs_show_mount_options(m, nfss, 0);
@@ -761,14 +760,14 @@ static void show_pnfs(struct seq_file *m, struct nfs_server *server) {}
#endif
#endif
-static int nfs_show_devname(struct seq_file *m, struct vfsmount *mnt)
+static int nfs_show_devname(struct seq_file *m, struct dentry *root)
{
char *page = (char *) __get_free_page(GFP_KERNEL);
char *devname, *dummy;
int err = 0;
if (!page)
return -ENOMEM;
- devname = nfs_path(&dummy, mnt->mnt_root, page, PAGE_SIZE);
+ devname = nfs_path(&dummy, root, page, PAGE_SIZE);
if (IS_ERR(devname))
err = PTR_ERR(devname);
else
@@ -777,7 +776,7 @@ static int nfs_show_devname(struct seq_file *m, struct vfsmount *mnt)
return err;
}
-static int nfs_show_path(struct seq_file *m, struct vfsmount *mnt)
+static int nfs_show_path(struct seq_file *m, struct dentry *dentry)
{
seq_puts(m, "/");
return 0;
@@ -786,10 +785,10 @@ static int nfs_show_path(struct seq_file *m, struct vfsmount *mnt)
/*
* Present statistical information for this VFS mountpoint
*/
-static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
+static int nfs_show_stats(struct seq_file *m, struct dentry *root)
{
int i, cpu;
- struct nfs_server *nfss = NFS_SB(mnt->mnt_sb);
+ struct nfs_server *nfss = NFS_SB(root->d_sb);
struct rpc_auth *auth = nfss->client->cl_auth;
struct nfs_iostats totals = { };
@@ -799,10 +798,10 @@ static int nfs_show_stats(struct seq_file *m, struct vfsmount *mnt)
* Display all mount option settings
*/
seq_printf(m, "\n\topts:\t");
- seq_puts(m, mnt->mnt_sb->s_flags & MS_RDONLY ? "ro" : "rw");
- seq_puts(m, mnt->mnt_sb->s_flags & MS_SYNCHRONOUS ? ",sync" : "");
- seq_puts(m, mnt->mnt_sb->s_flags & MS_NOATIME ? ",noatime" : "");
- seq_puts(m, mnt->mnt_sb->s_flags & MS_NODIRATIME ? ",nodiratime" : "");
+ seq_puts(m, root->d_sb->s_flags & MS_RDONLY ? "ro" : "rw");
+ seq_puts(m, root->d_sb->s_flags & MS_SYNCHRONOUS ? ",sync" : "");
+ seq_puts(m, root->d_sb->s_flags & MS_NOATIME ? ",noatime" : "");
+ seq_puts(m, root->d_sb->s_flags & MS_NODIRATIME ? ",nodiratime" : "");
nfs_show_mount_options(m, nfss, 1);
seq_printf(m, "\n\tage:\t%lu", (jiffies - nfss->mount_time) / HZ);
@@ -2788,11 +2787,15 @@ static struct dentry *nfs_follow_remote_path(struct vfsmount *root_mnt,
const char *export_path)
{
struct dentry *dentry;
- int ret = nfs_referral_loop_protect();
+ int err;
- if (ret) {
+ if (IS_ERR(root_mnt))
+ return ERR_CAST(root_mnt);
+
+ err = nfs_referral_loop_protect();
+ if (err) {
mntput(root_mnt);
- return ERR_PTR(ret);
+ return ERR_PTR(err);
}
dentry = mount_subtree(root_mnt, export_path);
@@ -2816,9 +2819,7 @@ static struct dentry *nfs4_try_mount(int flags, const char *dev_name,
data->nfs_server.hostname);
data->nfs_server.export_path = export_path;
- res = ERR_CAST(root_mnt);
- if (!IS_ERR(root_mnt))
- res = nfs_follow_remote_path(root_mnt, export_path);
+ res = nfs_follow_remote_path(root_mnt, export_path);
dfprintk(MOUNT, "<-- nfs4_try_mount() = %ld%s\n",
IS_ERR(res) ? PTR_ERR(res) : 0,
@@ -3079,9 +3080,7 @@ static struct dentry *nfs4_referral_mount(struct file_system_type *fs_type,
flags, data, data->hostname);
data->mnt_path = export_path;
- res = ERR_CAST(root_mnt);
- if (!IS_ERR(root_mnt))
- res = nfs_follow_remote_path(root_mnt, export_path);
+ res = nfs_follow_remote_path(root_mnt, export_path);
dprintk("<-- nfs4_referral_mount() = %ld%s\n",
IS_ERR(res) ? PTR_ERR(res) : 0,
IS_ERR(res) ? " [error]" : "");