#define MNT_INTERNAL 0x4000
-struct mnt_pcp {
- int mnt_count;
- int mnt_writers;
-};
-
struct vfsmount {
- struct list_head mnt_hash;
- struct vfsmount *mnt_parent; /* fs we are mounted on */
- struct dentry *mnt_mountpoint; /* dentry of mountpoint */
struct dentry *mnt_root; /* root of the mounted tree */
struct super_block *mnt_sb; /* pointer to superblock */
-#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 */
int mnt_flags;
- /* 4 bytes hole on 64bits arches without fsnotify */
-#ifdef CONFIG_FSNOTIFY
- __u32 mnt_fsnotify_mask;
- struct hlist_head mnt_fsnotify_marks;
-#endif
- 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 vfsmount *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;
};
struct file; /* forward dec */
extern int mnt_want_write_file(struct file *file);
extern int mnt_clone_write(struct vfsmount *mnt);
extern void mnt_drop_write(struct vfsmount *mnt);
+extern void mnt_drop_write_file(struct file *file);
extern void mntput(struct vfsmount *mnt);
extern struct vfsmount *mntget(struct vfsmount *mnt);
extern void mnt_pin(struct vfsmount *mnt);
extern void mnt_unpin(struct vfsmount *mnt);
extern int __mnt_is_readonly(struct vfsmount *mnt);
-extern struct vfsmount *do_kern_mount(const char *fstype, int flags,
- const char *name, void *data);
-
struct file_system_type;
extern struct vfsmount *vfs_kern_mount(struct file_system_type *type,
int flags, const char *name,