kill proc_ns completely

procfs inodes need only the ns_ops part; nsfs inodes don't need it at all

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

3 files changed, 5 insertions, 11 deletions

diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 57a9be9a6668..8420a2f80811 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -66,8 +66,7 @@ static struct inode *proc_alloc_inode(struct super_block *sb)
         ei->pde = NULL;
         ei->sysctl = NULL;
         ei->sysctl_entry = NULL;
-        ei->ns.ns = NULL;
-        ei->ns.ns_ops = NULL;
+        ei->ns_ops = NULL;
         inode = &ei->vfs_inode;
         inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
         return inode;
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 0fabc48d905f..d689fd6960d5 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -57,11 +57,6 @@ union proc_op {
                 struct task_struct *task);
 };
 
-struct proc_ns {
-        struct ns_common *ns;
-        const struct proc_ns_operations *ns_ops;
-};
-
 struct proc_inode {
         struct pid *pid;
         int fd;
@@ -69,7 +64,7 @@ struct proc_inode {
         struct proc_dir_entry *pde;
         struct ctl_table_header *sysctl;
         struct ctl_table *sysctl_entry;
-        struct proc_ns ns;
+        const struct proc_ns_operations *ns_ops;
         struct inode vfs_inode;
 };
 
diff --git a/fs/proc/namespaces.c b/fs/proc/namespaces.c
index aaaac77abad0..c9eac4563fa8 100644
--- a/fs/proc/namespaces.c
+++ b/fs/proc/namespaces.c
@@ -33,7 +33,7 @@ static const struct proc_ns_operations *ns_entries[] = {
 static void *proc_ns_follow_link(struct dentry *dentry, struct nameidata *nd)
 {
         struct inode *inode = dentry->d_inode;
-        const struct proc_ns_operations *ns_ops = PROC_I(inode)->ns.ns_ops;
+        const struct proc_ns_operations *ns_ops = PROC_I(inode)->ns_ops;
         struct task_struct *task;
         struct path ns_path;
         void *error = ERR_PTR(-EACCES);
@@ -54,7 +54,7 @@ static void *proc_ns_follow_link(struct dentry *dentry, struct nameidata *nd)
 static int proc_ns_readlink(struct dentry *dentry, char __user *buffer, int buflen)
 {
         struct inode *inode = dentry->d_inode;
-        const struct proc_ns_operations *ns_ops = PROC_I(inode)->ns.ns_ops;
+        const struct proc_ns_operations *ns_ops = PROC_I(inode)->ns_ops;
         struct task_struct *task;
         char name[50];
         int res = -EACCES;
@@ -92,7 +92,7 @@ static int proc_ns_instantiate(struct inode *dir,
         ei = PROC_I(inode);
         inode->i_mode = S_IFLNK|S_IRWXUGO;
         inode->i_op = &proc_ns_link_inode_operations;
-        ei->ns.ns_ops = ns_ops;
+        ei->ns_ops = ns_ops;
 
         d_set_d_op(dentry, &pid_dentry_operations);
         d_add(dentry, inode);