| Ram Pai | 07b2088 | 2005-11-07 17:19:07 -0500 | [diff] [blame] | 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> |
| Al Viro | b2dba1a | 2011-11-23 19:26:23 -0500 | [diff] [blame] | 12 | #include "mount.h" |
| Ram Pai | 03e06e6 | 2005-11-07 17:19:33 -0500 | [diff] [blame] | 13 | |
| Al Viro | fc7be13 | 2011-11-25 01:05:37 -0500 | [diff] [blame] | 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) |
| Ram Pai | 03e06e6 | 2005-11-07 17:19:33 -0500 | [diff] [blame] | 19 | |
| Ram Pai | b90fa9a | 2005-11-07 17:19:50 -0500 | [diff] [blame] | 20 | #define CL_EXPIRE 0x01 |
| Ram Pai | a58b0eb | 2005-11-07 17:20:48 -0500 | [diff] [blame] | 21 | #define CL_SLAVE 0x02 |
| Ram Pai | b90fa9a | 2005-11-07 17:19:50 -0500 | [diff] [blame] | 22 | #define CL_COPY_ALL 0x04 |
| 23 | #define CL_MAKE_SHARED 0x08 |
| Al Viro | 796a6b5 | 2010-01-16 13:28:47 -0500 | [diff] [blame] | 24 | #define CL_PRIVATE 0x10 |
| Eric W. Biederman | 7a472ef | 2012-07-31 13:13:04 -0700 | [diff] [blame] | 25 | #define CL_SHARED_TO_SLAVE 0x20 |
| Ram Pai | b90fa9a | 2005-11-07 17:19:50 -0500 | [diff] [blame] | 26 | |
| Al Viro | 0f0afb1 | 2011-11-24 20:43:10 -0500 | [diff] [blame] | 27 | static inline void set_mnt_shared(struct mount *mnt) |
| Ram Pai | b90fa9a | 2005-11-07 17:19:50 -0500 | [diff] [blame] | 28 | { |
| Al Viro | 0f0afb1 | 2011-11-24 20:43:10 -0500 | [diff] [blame] | 29 | mnt->mnt.mnt_flags &= ~MNT_SHARED_MASK; |
| 30 | mnt->mnt.mnt_flags |= MNT_SHARED; |
| Ram Pai | b90fa9a | 2005-11-07 17:19:50 -0500 | [diff] [blame] | 31 | } |
| 32 | |
| Al Viro | 0f0afb1 | 2011-11-24 20:43:10 -0500 | [diff] [blame] | 33 | void change_mnt_propagation(struct mount *, int); |
| Al Viro | a8d56d8 | 2011-11-24 23:59:29 -0500 | [diff] [blame] | 34 | int propagate_mnt(struct mount *, struct dentry *, struct mount *, |
| Ram Pai | b90fa9a | 2005-11-07 17:19:50 -0500 | [diff] [blame] | 35 | struct list_head *); |
| Ram Pai | a05964f | 2005-11-07 17:20:17 -0500 | [diff] [blame] | 36 | int propagate_umount(struct list_head *); |
| Al Viro | 1ab5973 | 2011-11-24 21:35:16 -0500 | [diff] [blame] | 37 | int propagate_mount_busy(struct mount *, int); |
| Al Viro | 4b8b21f | 2011-11-24 19:54:23 -0500 | [diff] [blame] | 38 | void mnt_release_group_id(struct mount *); |
| Al Viro | 6fc7871 | 2011-11-24 23:35:54 -0500 | [diff] [blame] | 39 | int get_dominating_id(struct mount *mnt, const struct path *root); |
| Al Viro | 83adc75 | 2011-11-24 22:37:54 -0500 | [diff] [blame] | 40 | unsigned int mnt_get_count(struct mount *mnt); |
| Al Viro | 14cf1fa | 2011-11-25 00:01:17 -0500 | [diff] [blame] | 41 | void mnt_set_mountpoint(struct mount *, struct dentry *, |
| Al Viro | 44d964d6 | 2011-11-24 21:28:22 -0500 | [diff] [blame] | 42 | struct mount *); |
| Al Viro | f47ec3f | 2011-11-21 21:15:42 -0500 | [diff] [blame] | 43 | void release_mounts(struct list_head *); |
| Al Viro | 761d5c3 | 2011-11-24 21:07:43 -0500 | [diff] [blame] | 44 | void umount_tree(struct mount *, int, struct list_head *); |
| Al Viro | 87129cc | 2011-11-24 21:24:27 -0500 | [diff] [blame] | 45 | struct mount *copy_tree(struct mount *, struct dentry *, int); |
| Al Viro | 643822b | 2011-11-24 22:00:28 -0500 | [diff] [blame] | 46 | bool is_path_reachable(struct mount *, struct dentry *, |
| Al Viro | afac7cb | 2011-11-23 19:34:49 -0500 | [diff] [blame] | 47 | const struct path *root); |
| Ram Pai | 07b2088 | 2005-11-07 17:19:07 -0500 | [diff] [blame] | 48 | #endif /* _LINUX_PNODE_H */ |