blob: eca3d5202138f68bb30dd1a308aaf4e121171663 [file] [log] [blame]
#ifndef _LINUX_FS_STRUCT_H
#define _LINUX_FS_STRUCT_H
#include <linux/path.h>
struct fs_struct {
int users;
rwlock_t lock;
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 *, struct path *);
extern void set_fs_pwd(struct fs_struct *, struct path *);
extern struct fs_struct *copy_fs_struct(struct fs_struct *);
extern void free_fs_struct(struct fs_struct *);
extern void daemonize_fs_struct(void);
extern int unshare_fs_struct(void);
static inline void get_fs_root(struct fs_struct *fs, struct path *root)
{
read_lock(&fs->lock);
*root = fs->root;
path_get(root);
read_unlock(&fs->lock);
}
static inline void get_fs_pwd(struct fs_struct *fs, struct path *pwd)
{
read_lock(&fs->lock);
*pwd = fs->pwd;
path_get(pwd);
read_unlock(&fs->lock);
}
static inline void get_fs_root_and_pwd(struct fs_struct *fs, struct path *root,
struct path *pwd)
{
read_lock(&fs->lock);
*root = fs->root;
path_get(root);
*pwd = fs->pwd;
path_get(pwd);
read_unlock(&fs->lock);
}
#endif /* _LINUX_FS_STRUCT_H */