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-rw-r--r--include/linux/debugfs.h3
-rw-r--r--include/linux/mount.h3
-rw-r--r--include/uapi/linux/fs.h1
3 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/debugfs.h b/include/linux/debugfs.h
index 1b413a9..b20a094 100644
--- a/include/linux/debugfs.h
+++ b/include/linux/debugfs.h
@@ -96,9 +96,10 @@ struct dentry *debugfs_create_dir(const char *name, struct dentry *parent);
struct dentry *debugfs_create_symlink(const char *name, struct dentry *parent,
const char *dest);
+typedef struct vfsmount *(*debugfs_automount_t)(struct dentry *, void *);
struct dentry *debugfs_create_automount(const char *name,
struct dentry *parent,
- struct vfsmount *(*f)(void *),
+ debugfs_automount_t f,
void *data);
void debugfs_remove(struct dentry *dentry);
diff --git a/include/linux/mount.h b/include/linux/mount.h
index 1172cce..e0f3a82 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -90,6 +90,9 @@ struct file_system_type;
extern struct vfsmount *vfs_kern_mount(struct file_system_type *type,
int flags, const char *name,
void *data);
+extern struct vfsmount *vfs_submount(const struct dentry *mountpoint,
+ struct file_system_type *type,
+ const char *name, void *data);
extern void mnt_set_expiry(struct vfsmount *mnt, struct list_head *expiry_list);
extern void mark_mounts_for_expiry(struct list_head *mounts);
diff --git a/include/uapi/linux/fs.h b/include/uapi/linux/fs.h
index acb2b61..4749955 100644
--- a/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@ -132,6 +132,7 @@ struct inodes_stat_t {
#define MS_LAZYTIME (1<<25) /* Update the on-disk [acm]times lazily */
/* These sb flags are internal to the kernel */
+#define MS_SUBMOUNT (1<<26)
#define MS_NOREMOTELOCK (1<<27)
#define MS_NOSEC (1<<28)
#define MS_BORN (1<<29)