fs/ntfs3: Refactoring lock in ntfs_init_acl
authorKonstantin Komarov <almaz.alexandrovich@paragon-software.com>
Wed, 22 Sep 2021 15:50:58 +0000 (18:50 +0300)
committerKonstantin Komarov <almaz.alexandrovich@paragon-software.com>
Fri, 24 Sep 2021 14:39:58 +0000 (17:39 +0300)
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>
fs/ntfs3/xattr.c

index 59ec5e6..83bbee2 100644 (file)
@@ -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