take the targets of /proc/*/ns/* symlinks to separate fs

[linux-2.6-block.git] / include / linux / proc_ns.h

diff --git a/include/linux/proc_ns.h b/include/linux/proc_ns.h
index 2837ff41cfe3998b98cacf6d8a7784db212ae422..42dfc615dbf8381a2057cb9956cec957e9ca5b1b 100644 (file)
--- a/include/linux/proc_ns.h
+++ b/include/linux/proc_ns.h
@@ -4,9 +4,11 @@
 #ifndef _LINUX_PROC_NS_H
 #define _LINUX_PROC_NS_H
 
+#include <linux/ns_common.h>
+
 struct pid_namespace;
 struct nsproxy;
-struct ns_common;
+struct path;
 
 struct proc_ns_operations {
        const char *name;
@@ -38,35 +40,38 @@ enum {
 
 extern int pid_ns_prepare_proc(struct pid_namespace *ns);
 extern void pid_ns_release_proc(struct pid_namespace *ns);
-extern struct file *proc_ns_fget(int fd);
-extern struct ns_common *get_proc_ns(struct inode *);
 extern int proc_alloc_inum(unsigned int *pino);
 extern void proc_free_inum(unsigned int inum);
-extern bool proc_ns_inode(struct inode *inode);
 
 #else /* CONFIG_PROC_FS */
 
 static inline int pid_ns_prepare_proc(struct pid_namespace *ns) { return 0; }
 static inline void pid_ns_release_proc(struct pid_namespace *ns) {}
 
-static inline struct file *proc_ns_fget(int fd)
-{
-       return ERR_PTR(-EINVAL);
-}
-
-static inline struct ns_common *get_proc_ns(struct inode *inode) { return NULL; }
-
 static inline int proc_alloc_inum(unsigned int *inum)
 {
        *inum = 1;
        return 0;
 }
 static inline void proc_free_inum(unsigned int inum) {}
-static inline bool proc_ns_inode(struct inode *inode) { return false; }
 
 #endif /* CONFIG_PROC_FS */
 
-#define ns_alloc_inum(ns) proc_alloc_inum(&(ns)->inum)
+static inline int ns_alloc_inum(struct ns_common *ns)
+{
+       atomic_long_set(&ns->stashed, 0);
+       return proc_alloc_inum(&ns->inum);
+}
+
 #define ns_free_inum(ns) proc_free_inum((ns)->inum)
 
+extern struct file *proc_ns_fget(int fd);
+#define get_proc_ns(inode) ((struct ns_common *)(inode)->i_private)
+extern void *ns_get_path(struct path *path, struct task_struct *task,
+                       const struct proc_ns_operations *ns_ops);
+
+extern int ns_get_name(char *buf, size_t size, struct task_struct *task,
+                       const struct proc_ns_operations *ns_ops);
+extern void nsfs_init(void);
+
 #endif /* _LINUX_PROC_NS_H */