fs_struct.h
999 Bytes
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
#ifndef _LINUX_FS_STRUCT_H
#define _LINUX_FS_STRUCT_H
#include <linux/path.h>
#include <linux/spinlock.h>
#include <linux/seqlock.h>
struct fs_struct {
int users;
spinlock_t lock;
seqcount_t seq;
int umask;
int in_exec;
struct path root, pwd;
};
extern struct kmem_cache *fs_cachep;
extern void exit_fs(struct task_struct *);
extern void set_fs_root(struct fs_struct *, const struct path *);
extern void set_fs_pwd(struct fs_struct *, const struct path *);
extern struct fs_struct *copy_fs_struct(struct fs_struct *);
extern void free_fs_struct(struct fs_struct *);
extern int unshare_fs_struct(void);
static inline void get_fs_root(struct fs_struct *fs, struct path *root)
{
spin_lock(&fs->lock);
*root = fs->root;
path_get(root);
spin_unlock(&fs->lock);
}
static inline void get_fs_pwd(struct fs_struct *fs, struct path *pwd)
{
spin_lock(&fs->lock);
*pwd = fs->pwd;
path_get(pwd);
spin_unlock(&fs->lock);
}
extern bool current_chrooted(void);
#endif /* _LINUX_FS_STRUCT_H */