1 /* 2 * linux/fs/pnode.h 3 * 4 * (C) Copyright IBM Corporation 2005. 5 * Released under GPL v2. 6 * 7 */ 8 #ifndef _LINUX_PNODE_H 9 #define _LINUX_PNODE_H 10 11 #include <linux/list.h> 12 #include "mount.h" 13 14 #define IS_MNT_SHARED(m) ((m)->mnt.mnt_flags & MNT_SHARED) 15 #define IS_MNT_SLAVE(m) ((m)->mnt_master) 16 #define IS_MNT_NEW(m) (!(m)->mnt_ns) 17 #define CLEAR_MNT_SHARED(m) ((m)->mnt.mnt_flags &= ~MNT_SHARED) 18 #define IS_MNT_UNBINDABLE(m) ((m)->mnt.mnt_flags & MNT_UNBINDABLE) 19 20 #define CL_EXPIRE 0x01 21 #define CL_SLAVE 0x02 22 #define CL_COPY_ALL 0x04 23 #define CL_MAKE_SHARED 0x08 24 #define CL_PRIVATE 0x10 25 #define CL_SHARED_TO_SLAVE 0x20 26 #define CL_UNPRIVILEGED 0x40 27 28 static inline void set_mnt_shared(struct mount *mnt) 29 { 30 mnt->mnt.mnt_flags &= ~MNT_SHARED_MASK; 31 mnt->mnt.mnt_flags |= MNT_SHARED; 32 } 33 34 void change_mnt_propagation(struct mount *, int); 35 int propagate_mnt(struct mount *, struct mountpoint *, struct mount *, 36 struct list_head *); 37 int propagate_umount(struct list_head *); 38 int propagate_mount_busy(struct mount *, int); 39 void mnt_release_group_id(struct mount *); 40 int get_dominating_id(struct mount *mnt, const struct path *root); 41 unsigned int mnt_get_count(struct mount *mnt); 42 void mnt_set_mountpoint(struct mount *, struct mountpoint *, 43 struct mount *); 44 void umount_tree(struct mount *, int); 45 struct mount *copy_tree(struct mount *, struct dentry *, int); 46 bool is_path_reachable(struct mount *, struct dentry *, 47 const struct path *root); 48 #endif /* _LINUX_PNODE_H */ 49