linux-kernel - [PATCH v2 2/7] smb: update struct duplicate_extents_to_file

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Message-ID: <20251211143228.172470-3-chenxiaosong.chenxiaosong@linux.dev>
Date: Thu, 11 Dec 2025 22:32:23 +0800
From: chenxiaosong.chenxiaosong@...ux.dev
To: sfrench@...ba.org,
	smfrench@...il.com,
	linkinjeon@...nel.org,
	linkinjeon@...ba.org
Cc: linux-cifs@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	ChenXiaoSong <chenxiaosong@...inos.cn>,
	Steve French <stfrench@...rosoft.com>
Subject: [PATCH v2 2/7] smb: update struct duplicate_extents_to_file_ex

From: ChenXiaoSong <chenxiaosong@...inos.cn>

Add the missing field to the structure (see MS-FSCC 2.3.9.2), and correct
the section number in the documentation reference.

Signed-off-by: ChenXiaoSong <chenxiaosong@...inos.cn>
Signed-off-by: Steve French <stfrench@...rosoft.com>
---
 fs/smb/common/smb2pdu.h | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/smb/common/smb2pdu.h b/fs/smb/common/smb2pdu.h
index 5372a820118e..3c8d8a4e7439 100644
--- a/fs/smb/common/smb2pdu.h
+++ b/fs/smb/common/smb2pdu.h
@@ -1510,9 +1510,10 @@ struct duplicate_extents_to_file {
 	__le64 ByteCount;  /* Bytes to be copied */
 } __packed;
 
-/* See MS-FSCC 2.3.8 */
+/* See MS-FSCC 2.3.9 */
 #define DUPLICATE_EXTENTS_DATA_EX_SOURCE_ATOMIC	0x00000001
 struct duplicate_extents_to_file_ex {
+	__le64 StructureSize; /* MUST be set to 0x30 */
 	__u64 PersistentFileHandle; /* source file handle, opaque endianness */
 	__u64 VolatileFileHandle;
 	__le64 SourceFileOffset;
-- 
2.43.0