| #include <linux/mount.h> |
| |
| struct mnt_pcp { |
| int mnt_count; |
| int mnt_writers; |
| }; |
| |
| struct mount { |
| struct list_head mnt_hash; |
| struct mount *mnt_parent; |
| struct dentry *mnt_mountpoint; |
| struct vfsmount mnt; |
| #ifdef CONFIG_SMP |
| struct mnt_pcp __percpu *mnt_pcp; |
| atomic_t mnt_longterm; /* how many of the refs are longterm */ |
| #else |
| int mnt_count; |
| int mnt_writers; |
| #endif |
| struct list_head mnt_mounts; /* list of children, anchored here */ |
| struct list_head mnt_child; /* and going through their mnt_child */ |
| /* yet to be moved - fsnotify ones go here */ |
| const char *mnt_devname; /* Name of device e.g. /dev/dsk/hda1 */ |
| struct list_head mnt_list; |
| struct list_head mnt_expire; /* link in fs-specific expiry list */ |
| struct list_head mnt_share; /* circular list of shared mounts */ |
| struct list_head mnt_slave_list;/* list of slave mounts */ |
| struct list_head mnt_slave; /* slave list entry */ |
| struct mount *mnt_master; /* slave is on master->mnt_slave_list */ |
| struct mnt_namespace *mnt_ns; /* containing namespace */ |
| int mnt_id; /* mount identifier */ |
| int mnt_group_id; /* peer group identifier */ |
| int mnt_expiry_mark; /* true if marked for expiry */ |
| int mnt_pinned; |
| int mnt_ghosts; |
| }; |
| |
| static inline struct mount *real_mount(struct vfsmount *mnt) |
| { |
| return container_of(mnt, struct mount, mnt); |
| } |
| |
| static inline int mnt_has_parent(struct mount *mnt) |
| { |
| return mnt != mnt->mnt_parent; |
| } |
| |
| extern struct mount *__lookup_mnt(struct vfsmount *, struct dentry *, int); |