1 files changed, 28 insertions, 0 deletions

diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
new file mode 100644
index 000000000000..c623d12a486e
--- /dev/null
+++ b/include/linux/fs_struct.h
@@ -0,0 +1,28 @@
+#ifndef _LINUX_FS_STRUCT_H
+#define _LINUX_FS_STRUCT_H
+
+struct dentry;
+struct vfsmount;
+
+struct fs_struct {
+        atomic_t count;
+        rwlock_t lock;
+        int umask;
+        struct dentry * root, * pwd, * altroot;
+        struct vfsmount * rootmnt, * pwdmnt, * altrootmnt;
+};
+
+#define INIT_FS {                               \
+        .count          = ATOMIC_INIT(1),       \
+        .lock           = RW_LOCK_UNLOCKED,     \
+        .umask          = 0022, \
+}
+
+extern void exit_fs(struct task_struct *);
+extern void set_fs_altroot(void);
+extern void set_fs_root(struct fs_struct *, struct vfsmount *, struct dentry *);
+extern void set_fs_pwd(struct fs_struct *, struct vfsmount *, struct dentry *);
+extern struct fs_struct *copy_fs_struct(struct fs_struct *);
+extern void put_fs_struct(struct fs_struct *);
+
+#endif /* _LINUX_FS_STRUCT_H */