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review.shift-gmbh.com / SHIFTPHONES / kernel / common / 38129a13e6e71f666e0468e99fdd932a687b4d7e / . / fs / pnode.h
blob: fc28a27fa89233d24b90bdd748477994b8713ecd [file] [log] [blame]
Ram Pai07b20882005-11-07 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 Virob2dba1a2011-11-23 19:26:23 -0500[diff] [blame]12#include "mount.h"
Ram Pai03e06e62005-11-07 17:19:33 -0500[diff] [blame]13
Al Virofc7be132011-11-25 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 Pai03e06e62005-11-07 17:19:33 -0500[diff] [blame]19
Ram Paib90fa9a2005-11-07 17:19:50 -0500[diff] [blame]20#define CL_EXPIRE 0x01
Ram Paia58b0eb2005-11-07 17:20:48 -0500[diff] [blame]21#define CL_SLAVE 0x02
Eric W. Biederman4ce5d2b2013-03-30 01:35:18 -0700[diff] [blame]22#define CL_COPY_UNBINDABLE 0x04
Ram Paib90fa9a2005-11-07 17:19:50 -0500[diff] [blame]23#define CL_MAKE_SHARED 0x08
Al Viro796a6b52010-01-16 13:28:47 -0500[diff] [blame]24#define CL_PRIVATE 0x10
Eric W. Biederman7a472ef2012-07-31 13:13:04 -0700[diff] [blame]25#define CL_SHARED_TO_SLAVE 0x20
Eric W. Biederman132c94e2013-03-22 04:08:05 -0700[diff] [blame]26#define CL_UNPRIVILEGED 0x40
Eric W. Biederman4ce5d2b2013-03-30 01:35:18 -0700[diff] [blame]27#define CL_COPY_MNT_NS_FILE 0x80
28
29#define CL_COPY_ALL (CL_COPY_UNBINDABLE | CL_COPY_MNT_NS_FILE)
Ram Paib90fa9a2005-11-07 17:19:50 -0500[diff] [blame]30
Al Viro0f0afb12011-11-24 20:43:10 -0500[diff] [blame]31static inline void set_mnt_shared(struct mount *mnt)
Ram Paib90fa9a2005-11-07 17:19:50 -0500[diff] [blame]32{
Al Viro0f0afb12011-11-24 20:43:10 -0500[diff] [blame]33 mnt->mnt.mnt_flags &= ~MNT_SHARED_MASK;
34 mnt->mnt.mnt_flags |= MNT_SHARED;
Ram Paib90fa9a2005-11-07 17:19:50 -0500[diff] [blame]35}
36
Al Viro0f0afb12011-11-24 20:43:10 -0500[diff] [blame]37void change_mnt_propagation(struct mount *, int);
Al Viro84d17192013-03-15 10:53:28 -0400[diff] [blame]38int propagate_mnt(struct mount *, struct mountpoint *, struct mount *,
Al Viro38129a12014-03-20 21:10:51 -0400[diff] [blame^]39 struct hlist_head *);
40int propagate_umount(struct hlist_head *);
Al Viro1ab59732011-11-24 21:35:16 -0500[diff] [blame]41int propagate_mount_busy(struct mount *, int);
Al Viro4b8b21f2011-11-24 19:54:23 -0500[diff] [blame]42void mnt_release_group_id(struct mount *);
Al Viro6fc78712011-11-24 23:35:54 -0500[diff] [blame]43int get_dominating_id(struct mount *mnt, const struct path *root);
Al Viro83adc752011-11-24 22:37:54 -0500[diff] [blame]44unsigned int mnt_get_count(struct mount *mnt);
Al Viro84d17192013-03-15 10:53:28 -0400[diff] [blame]45void mnt_set_mountpoint(struct mount *, struct mountpoint *,
Al Viro44d964d62011-11-24 21:28:22 -0500[diff] [blame]46 struct mount *);
Al Viro328e6d92013-03-16 14:49:45 -0400[diff] [blame]47void umount_tree(struct mount *, int);
Al Viro87129cc2011-11-24 21:24:27 -0500[diff] [blame]48struct mount *copy_tree(struct mount *, struct dentry *, int);
Al Viro643822b2011-11-24 22:00:28 -0500[diff] [blame]49bool is_path_reachable(struct mount *, struct dentry *,
Al Viroafac7cb2011-11-23 19:34:49 -0500[diff] [blame]50 const struct path *root);
Ram Pai07b20882005-11-07 17:19:07 -0500[diff] [blame]51#endif /* _LINUX_PNODE_H */