3 files changed, 15 insertions, 13 deletions
diff --git a/include/linux/fs_struct.h b/include/linux/fs_struct.h
index 783b48dedb72..baf200ab5c77 100644
--- a/include/linux/fs_struct.h
+++ b/include/linux/fs_struct.h
@@ -8,8 +8,7 @@
 
 struct fs_struct {
 	int users;
-	spinlock_t lock;
-	seqcount_spinlock_t seq;
+	seqlock_t seq;
 	int umask;
 	int in_exec;
 	struct path root, pwd;
@@ -26,18 +25,18 @@ extern int unshare_fs_struct(void);
 
 static inline void get_fs_root(struct fs_struct *fs, struct path *root)
 {
-	spin_lock(&fs->lock);
+	read_seqlock_excl(&fs->seq);
 	*root = fs->root;
 	path_get(root);
-	spin_unlock(&fs->lock);
+	read_sequnlock_excl(&fs->seq);
 }
 
 static inline void get_fs_pwd(struct fs_struct *fs, struct path *pwd)
 {
-	spin_lock(&fs->lock);
+	read_seqlock_excl(&fs->seq);
 	*pwd = fs->pwd;
 	path_get(pwd);
-	spin_unlock(&fs->lock);
+	read_sequnlock_excl(&fs->seq);
 }
 
 extern bool current_chrooted(void);
diff --git a/include/linux/pid.h b/include/linux/pid.h
index 453ae6d8a68d..003a1027d219 100644
--- a/include/linux/pid.h
+++ b/include/linux/pid.h
@@ -47,19 +47,23 @@
 
 #define RESERVED_PIDS 300
 
+struct pidfs_attr;
+
 struct upid {
 	int nr;
 	struct pid_namespace *ns;
 };
 
-struct pid
-{
+struct pid {
 	refcount_t count;
 	unsigned int level;
 	spinlock_t lock;
-	struct dentry *stashed;
-	u64 ino;
-	struct rb_node pidfs_node;
+	struct {
+		u64 ino;
+		struct rb_node pidfs_node;
+		struct dentry *stashed;
+		struct pidfs_attr *attr;
+	};
 	/* lists of tasks that use this pid */
 	struct hlist_head tasks[PIDTYPE_MAX];
 	struct hlist_head inodes;
diff --git a/include/linux/pidfs.h b/include/linux/pidfs.h
index 77e7db194914..3e08c33da2df 100644
--- a/include/linux/pidfs.h
+++ b/include/linux/pidfs.h
@@ -14,7 +14,6 @@ void pidfs_coredump(const struct coredump_params *cprm);
 #endif
 extern const struct dentry_operations pidfs_dentry_operations;
 int pidfs_register_pid(struct pid *pid);
-void pidfs_get_pid(struct pid *pid);
-void pidfs_put_pid(struct pid *pid);
+void pidfs_free_pid(struct pid *pid);
 
 #endif /* _LINUX_PID_FS_H */