[PATCH v2 16/16] pidfs: add some CONFIG_DEBUG_VFS asserts

[Christian Brauner <brauner@kernel.org>]

Allow to catch some obvious bugs.

Signed-off-by: Christian Brauner <brauner@kernel.org>
---
 fs/pidfs.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/pidfs.c b/fs/pidfs.c
index 15d99854d243..1cf66fd9961e 100644
--- a/fs/pidfs.c
+++ b/fs/pidfs.c
@@ -809,6 +809,8 @@ static struct dentry *pidfs_fh_to_dentry(struct super_block *sb,
 	if (ret < 0)
 		return ERR_PTR(ret);
 
+	VFS_WARN_ON_ONCE(!pid->attr);
+
 	mntput(path.mnt);
 	return path.dentry;
 }
@@ -1038,6 +1040,8 @@ struct file *pidfs_alloc_file(struct pid *pid, unsigned int flags)
 	if (ret < 0)
 		return ERR_PTR(ret);
 
+	VFS_WARN_ON_ONCE(!pid->attr);
+
 	flags &= ~PIDFD_STALE;
 	flags |= O_RDWR;
 	pidfd_file = dentry_open(&path, flags, current_cred());

-- 
2.47.2