get rid of magic in proc_namespace.c

don't rely on proc_mounts->m being the first field; container_of() is there for purpose. No need to bother with ->private, while we are at it - the same container_of will do nicely. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-06-09 01:16:59 -04:00
parent f7a99c5b7c
commit 6ce6e24e72
3 changed files with 9 additions and 8 deletions
@@ -74,10 +74,12 @@ static inline void get_mnt_ns(struct mnt_namespace *ns)
 }

 struct proc_mounts {
-	struct seq_file m; /* must be the first element */
+	struct seq_file m;
 	struct mnt_namespace *ns;
 	struct path root;
 	int (*show)(struct seq_file *, struct vfsmount *);
 };

+#define proc_mounts(p) (container_of((p), struct proc_mounts, m))
+
 extern const struct seq_operations mounts_op;