From: Al Viro <viro@zeniv.linux.org.uk>
Date: Wed, 18 Sep 2019 03:28:08 +0000 (-0400)
Subject: autofs_dir_rmdir(): check ino->count for deciding whether it's empty...
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=c3aed16680cd0c0e5abf1bfc0dc1338e6a41b29f;p=linux.git

autofs_dir_rmdir(): check ino->count for deciding whether it's empty...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---

diff --git a/fs/autofs/root.c b/fs/autofs/root.c
index 7806b110e79d5..ae1d112b6f649 100644
--- a/fs/autofs/root.c
+++ b/fs/autofs/root.c
@@ -691,11 +691,10 @@ static int autofs_dir_rmdir(struct inode *dir, struct dentry *dentry)
 	if (sbi->flags & AUTOFS_SBI_CATATONIC)
 		return -EACCES;
 
-	spin_lock(&sbi->lookup_lock);
-	if (!simple_empty(dentry)) {
-		spin_unlock(&sbi->lookup_lock);
+	if (atomic_read(&ino->count) != 1)
 		return -ENOTEMPTY;
-	}
+
+	spin_lock(&sbi->lookup_lock);
 	__autofs_add_expiring(dentry);
 	d_drop(dentry);
 	spin_unlock(&sbi->lookup_lock);