#include <linux/mount.h> #include <linux/seq_file.h> #include <linux/poll.h> struct mnt_namespace { atomic_t count; struct mount * root; struct list_head list; wait_queue_head_t poll; int event; }; 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 */ struct list_head mnt_instance; /* mount instance on sb->s_mounts */ 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 */ #ifdef CONFIG_FSNOTIFY struct hlist_head mnt_fsnotify_marks; __u32 mnt_fsnotify_mask; #endif 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); static inline void get_mnt_ns(struct mnt_namespace *ns) { atomic_inc(&ns->count); } struct proc_mounts { struct seq_file m; /* must be the first element */ struct mnt_namespace *ns; struct path root; int (*show)(struct seq_file *, struct vfsmount *); }; extern const struct seq_operations mounts_op;