1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_FS_STRUCT_H
3 #define _LINUX_FS_STRUCT_H
5 #include <linux/path.h>
6 #include <linux/spinlock.h>
7 #include <linux/seqlock.h>
12 seqcount_spinlock_t seq;
15 struct path root, pwd;
18 extern struct kmem_cache *fs_cachep;
20 extern void exit_fs(struct task_struct *);
21 extern void set_fs_root(struct fs_struct *, const struct path *);
22 extern void set_fs_pwd(struct fs_struct *, const struct path *);
23 extern struct fs_struct *copy_fs_struct(struct fs_struct *);
24 extern void free_fs_struct(struct fs_struct *);
25 extern int unshare_fs_struct(void);
27 static inline void get_fs_root(struct fs_struct *fs, struct path *root)
32 spin_unlock(&fs->lock);
35 static inline void get_fs_pwd(struct fs_struct *fs, struct path *pwd)
40 spin_unlock(&fs->lock);
43 extern bool current_chrooted(void);
45 #endif /* _LINUX_FS_STRUCT_H */