[deliverable/linux.git] / fs / pnode.h

/*
 *  linux/fs/pnode.h
 *
 * (C) Copyright IBM Corporation 2005.
 *	Released under GPL v2.
 *
 */
#ifndef _LINUX_PNODE_H
#define _LINUX_PNODE_H

#include <linux/list.h>
#include <linux/mount.h>

#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
#define IS_MNT_NEW(mnt)  (!mnt->mnt_namespace)
#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
#define IS_MNT_UNBINDABLE(mnt) (mnt->mnt_flags & MNT_UNBINDABLE)

#define CL_EXPIRE    		0x01
#define CL_SLAVE     		0x02
#define CL_COPY_ALL 		0x04
#define CL_MAKE_SHARED 		0x08
#define CL_PROPAGATION 		0x10

static inline void set_mnt_shared(struct vfsmount *mnt)
{
	mnt->mnt_flags &= ~MNT_PNODE_MASK;
	mnt->mnt_flags |= MNT_SHARED;
}

void change_mnt_propagation(struct vfsmount *, int);
int propagate_mnt(struct vfsmount *, struct dentry *, struct vfsmount *,
		struct list_head *);
int propagate_umount(struct list_head *);
int propagate_mount_busy(struct vfsmount *, int);
#endif /* _LINUX_PNODE_H */
Commit	Line	Data
	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 <linux/mount.h>
	13
	14	#define IS_MNT_SHARED(mnt) (mnt->mnt_flags & MNT_SHARED)
	15	#define IS_MNT_SLAVE(mnt) (mnt->mnt_master)
	16	#define IS_MNT_NEW(mnt) (!mnt->mnt_namespace)
	17	#define CLEAR_MNT_SHARED(mnt) (mnt->mnt_flags &= ~MNT_SHARED)
	18	#define IS_MNT_UNBINDABLE(mnt) (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_PROPAGATION 0x10
	25
	26	static inline void set_mnt_shared(struct vfsmount *mnt)
	27	{
	28	mnt->mnt_flags &= ~MNT_PNODE_MASK;
	29	mnt->mnt_flags \|= MNT_SHARED;
	30	}
	31
	32	void change_mnt_propagation(struct vfsmount *, int);
	33	int propagate_mnt(struct vfsmount , struct dentry , struct vfsmount *,
	34	struct list_head *);
	35	int propagate_umount(struct list_head *);
	36	int propagate_mount_busy(struct vfsmount *, int);
	37	#endif /* _LINUX_PNODE_H */