From 66019837a5563e1f80a4228b7d110d8c52bfdd8b Mon Sep 17 00:00:00 2001
From: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Date: Wed, 22 Sep 2021 18:50:58 +0300
Subject: [Backport 66019837a556] src: Refactoring lock in ntfs_init_acl

This is possible because of moving lock into ntfs_create_inode.

Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
---
 src/xattr.c | 55 ++++++++++++------------------------------------
 1 file changed, 14 insertions(+), 41 deletions(-)

diff --git a/src/xattr.c b/src/xattr.c
index 59ec5e61a2390511a633c39b4e8ae3b01a2b9840..83bbee277e12ec795dde29cf279b7eb96af961bc 100644
--- a/src/xattr.c
+++ b/src/xattr.c
@@ -693,54 +693,27 @@ int ntfs_init_acl(struct user_namespace *mnt_userns, struct inode *inode,
 	struct posix_acl *default_acl, *acl;
 	int err;
 
-	/*
-	 * TODO: Refactoring lock.
-	 * ni_lock(dir) ... -> posix_acl_create(dir,...) -> ntfs_get_acl -> ni_lock(dir)
-	 */
-	inode->i_default_acl = NULL;
-
-	default_acl = ntfs_get_acl_ex(mnt_userns, dir, ACL_TYPE_DEFAULT, 1);
-
-	if (!default_acl || default_acl == ERR_PTR(-EOPNOTSUPP)) {
-		inode->i_mode &= ~current_umask();
-		err = 0;
-		goto out;
-	}
-
-	if (IS_ERR(default_acl)) {
-		err = PTR_ERR(default_acl);
-		goto out;
-	}
-
-	acl = default_acl;
-	err = __posix_acl_create(&acl, GFP_NOFS, &inode->i_mode);
-	if (err < 0)
-		goto out1;
-	if (!err) {
-		posix_acl_release(acl);
-		acl = NULL;
-	}
-
-	if (!S_ISDIR(inode->i_mode)) {
-		posix_acl_release(default_acl);
-		default_acl = NULL;
-	}
+	err = posix_acl_create(dir, &inode->i_mode, &default_acl, &acl);
+	if (err)
+		return err;
 
-	if (default_acl)
+	if (default_acl) {
 		err = ntfs_set_acl_ex(mnt_userns, inode, default_acl,
 				      ACL_TYPE_DEFAULT, 1);
+		posix_acl_release(default_acl);
+	} else {
+		inode->i_default_acl = NULL;
+	}
 
 	if (!acl)
 		inode->i_acl = NULL;
-	else if (!err)
-		err = ntfs_set_acl_ex(mnt_userns, inode, acl, ACL_TYPE_ACCESS,
-				      1);
-
-	posix_acl_release(acl);
-out1:
-	posix_acl_release(default_acl);
+	else {
+		if (!err)
+			err = ntfs_set_acl_ex(mnt_userns, inode, acl,
+					      ACL_TYPE_ACCESS, 1);
+		posix_acl_release(acl);
+	}
 
-out:
 	return err;
 }
 #endif
-- 
2.31.1