Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1#ifndef _LINUX_FS_STRUCT_H
2#define _LINUX_FS_STRUCT_H
3
4#include <linux/path.h>
5
6struct fs_struct {
7 int users;
8 spinlock_t lock;
9 int umask;
10 int in_exec;
11 struct path root, pwd;
12};
13
14extern struct kmem_cache *fs_cachep;
15
16extern void exit_fs(struct task_struct *);
17extern void set_fs_root(struct fs_struct *, struct path *);
18extern void set_fs_pwd(struct fs_struct *, struct path *);
19extern struct fs_struct *copy_fs_struct(struct fs_struct *);
20extern void free_fs_struct(struct fs_struct *);
21extern void daemonize_fs_struct(void);
22extern int unshare_fs_struct(void);
23
24static inline void get_fs_root(struct fs_struct *fs, struct path *root)
25{
26 spin_lock(&fs->lock);
27 *root = fs->root;
28 path_get(root);
29 spin_unlock(&fs->lock);
30}
31
32static inline void get_fs_pwd(struct fs_struct *fs, struct path *pwd)
33{
34 spin_lock(&fs->lock);
35 *pwd = fs->pwd;
36 path_get(pwd);
37 spin_unlock(&fs->lock);
38}
39
40static inline void get_fs_root_and_pwd(struct fs_struct *fs, struct path *root,
41 struct path *pwd)
42{
43 spin_lock(&fs->lock);
44 *root = fs->root;
45 path_get(root);
46 *pwd = fs->pwd;
47 path_get(pwd);
48 spin_unlock(&fs->lock);
49}
50
51#endif /* _LINUX_FS_STRUCT_H */