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