1 #include <linux/mount.h>
2 #include <linux/seq_file.h>
3 #include <linux/poll.h>
9 wait_queue_head_t poll;
19 struct list_head mnt_hash;
20 struct mount *mnt_parent;
21 struct dentry *mnt_mountpoint;
24 struct mnt_pcp __percpu *mnt_pcp;
29 struct list_head mnt_mounts; /* list of children, anchored here */
30 struct list_head mnt_child; /* and going through their mnt_child */
31 struct list_head mnt_instance; /* mount instance on sb->s_mounts */
32 const char *mnt_devname; /* Name of device e.g. /dev/dsk/hda1 */
33 struct list_head mnt_list;
34 struct list_head mnt_expire; /* link in fs-specific expiry list */
35 struct list_head mnt_share; /* circular list of shared mounts */
36 struct list_head mnt_slave_list;/* list of slave mounts */
37 struct list_head mnt_slave; /* slave list entry */
38 struct mount *mnt_master; /* slave is on master->mnt_slave_list */
39 struct mnt_namespace *mnt_ns; /* containing namespace */
40 #ifdef CONFIG_FSNOTIFY
41 struct hlist_head mnt_fsnotify_marks;
42 __u32 mnt_fsnotify_mask;
44 int mnt_id; /* mount identifier */
45 int mnt_group_id; /* peer group identifier */
46 int mnt_expiry_mark; /* true if marked for expiry */
51 #define MNT_NS_INTERNAL ERR_PTR(-EINVAL) /* distinct from any mnt_namespace */
53 static inline struct mount *real_mount(struct vfsmount *mnt)
55 return container_of(mnt, struct mount, mnt);
58 static inline int mnt_has_parent(struct mount *mnt)
60 return mnt != mnt->mnt_parent;
63 static inline int is_mounted(struct vfsmount *mnt)
65 /* neither detached nor internal? */
66 return !IS_ERR_OR_NULL(real_mount(mnt));
69 extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *, int);
71 static inline void get_mnt_ns(struct mnt_namespace *ns)
73 atomic_inc(&ns->count);
78 struct mnt_namespace *ns;
80 int (*show)(struct seq_file *, struct vfsmount *);
83 #define proc_mounts(p) (container_of((p), struct proc_mounts, m))
85 extern const struct seq_operations mounts_op;