From: Pali Rohár <pali@kernel.org>
Date: Mon, 30 Dec 2024 21:18:53 +0000 (+0100)
Subject: cifs: Add fallback code path for cifs_mkdir_setinfo()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=92210ccd877ba577585e420c99cff2b51c4c9fe2;p=users%2Fhch%2Fmisc.git

cifs: Add fallback code path for cifs_mkdir_setinfo()

Use SMBSetInformation() as a fallback function (when CIFSSMBSetPathInfo()
fails) which can set attribudes on the directory, including changing
read-only attribute.

Signed-off-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
---

diff --git a/fs/smb/client/smb1ops.c b/fs/smb/client/smb1ops.c
index 7b17668e2a54..ca8f3dd7ff63 100644
--- a/fs/smb/client/smb1ops.c
+++ b/fs/smb/client/smb1ops.c
@@ -876,6 +876,11 @@ cifs_mkdir_setinfo(struct inode *inode, const char *full_path,
 	info.Attributes = cpu_to_le32(dosattrs);
 	rc = CIFSSMBSetPathInfo(xid, tcon, full_path, &info, cifs_sb->local_nls,
 				cifs_sb);
+	if (rc == -EOPNOTSUPP || rc == -EINVAL)
+		rc = SMBSetInformation(xid, tcon, full_path,
+				       info.Attributes,
+				       0 /* do not change write time */,
+				       cifs_sb->local_nls, cifs_sb);
 	if (rc == 0)
 		cifsInode->cifsAttrs = dosattrs;
 }