mirror of
https://github.com/torvalds/linux.git
synced 2024-11-27 06:31:52 +00:00
495d6c9c65
The handling of mount flags in set_mnt_shared() got a little tangled up during previous cleanups, with the following problems: * MNT_PNODE_MASK is defined as a literal constant when it should be a bitwise xor of other MNT_* flags * set_mnt_shared() clears and then sets MNT_SHARED (part of MNT_PNODE_MASK) * MNT_PNODE_MASK could use a comment in mount.h * MNT_PNODE_MASK is a terrible name, change to MNT_SHARED_MASK This patch fixes these problems. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
40 lines
1.1 KiB
C
40 lines
1.1 KiB
C
/*
|
|
* 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_ns)
|
|
#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_PRIVATE 0x10
|
|
|
|
static inline void set_mnt_shared(struct vfsmount *mnt)
|
|
{
|
|
mnt->mnt_flags &= ~MNT_SHARED_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);
|
|
void mnt_release_group_id(struct vfsmount *);
|
|
int get_dominating_id(struct vfsmount *mnt, const struct path *root);
|
|
#endif /* _LINUX_PNODE_H */
|