struct fs_struct {
int users;
- rwlock_t lock;
+ spinlock_t lock;
int umask;
int in_exec;
struct path root, pwd;
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)
+{
+ 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);
+}
+
+static inline void get_fs_root_and_pwd(struct fs_struct *fs, struct path *root,
+ struct path *pwd)
+{
+ spin_lock(&fs->lock);
+ *root = fs->root;
+ path_get(root);
+ *pwd = fs->pwd;
+ path_get(pwd);
+ spin_unlock(&fs->lock);
+}
+
#endif /* _LINUX_FS_STRUCT_H */