kernel/linux.git/fs/smb/common, branch v6.19.11

smb: smbdirect: introduce smbdirect_socket.send_io.bcredits.*

2026-02-16T09:13:29+00:00

commit 8e94268b21c8235d430ce1aa6dc0b15952744b9b upstream. It turns out that our code will corrupt the stream of reassabled data transfer messages when we trigger an immendiate (empty) send. In order to fix this we'll have a single 'batch' credit per connection. And code getting that credit is free to use as much messages until remaining_length reaches 0, then the batch credit it given back and the next logical send can happen. Cc: # 6.18.x Cc: Steve French Cc: Tom Talpey Cc: Long Li Cc: Namjae Jeon Cc: linux-cifs@vger.kernel.org Cc: samba-technical@lists.samba.org Signed-off-by: Stefan Metzmacher Acked-by: Namjae Jeon Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman

smb: smbdirect: introduce smbdirect_socket.recv_io.credits.available

2026-02-16T09:13:29+00:00

commit 6e3c5052f9686192e178806e017b7377155f4bab upstream. The logic off managing recv credits by counting posted recv_io and granted credits is racy. That's because the peer might already consumed a credit, but between receiving the incoming recv at the hardware and processing the completion in the 'recv_done' functions we likely have a window where we grant credits, which don't really exist. So we better have a decicated counter for the available credits, which will be incremented when we posted new recv buffers and drained when we grant the credits to the peer. Fixes: 5fb9b459b368 ("smb: client: count the number of posted recv_io messages in order to calculated credits") Fixes: 89b021a72663 ("smb: server: manage recv credits by counting posted recv_io and granted credits") Cc: # 6.18.x Cc: Steve French Cc: Tom Talpey Cc: Long Li Cc: Namjae Jeon Cc: linux-cifs@vger.kernel.org Cc: samba-technical@lists.samba.org Signed-off-by: Stefan Metzmacher Acked-by: Namjae Jeon Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman

Merge tag 'v6.19-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

2025-12-18T19:50:20+00:00

Pull smb client fixes from Steve French: - important fix for reconnect problem - minor cleanup * tag 'v6.19-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: update internal module version number smb: move some SMB1 definitions into common/smb1pdu.h smb: align durable reconnect v2 context to 8 byte boundary

smb: move some SMB1 definitions into common/smb1pdu.h

2025-12-16T23:43:01+00:00

These definitions are only used by SMB1, so move them into the new common/smb1pdu.h. KSMBD only implements SMB_COM_NEGOTIATE, see MS-SMB2 3.3.5.2. Co-developed-by: ChenXiaoSong Signed-off-by: ChenXiaoSong Signed-off-by: ZhangGuoDong Signed-off-by: Steve French

smb: align durable reconnect v2 context to 8 byte boundary

2025-12-16T23:42:49+00:00

Add a 4-byte Pad to create_durable_handle_reconnect_v2 so the DH2C create context is 8 byte aligned. This avoids malformed CREATE contexts on reconnect. Recent change removed this Padding, adding it back. Fixes: 81a45de432c6 ("smb: move create_durable_handle_reconnect_v2 to common/smb2pdu.h") Signed-off-by: Bharath SM Reviewed-by: Paulo Alcantara (Red Hat) Signed-off-by: Steve French

smb: smbdirect: introduce smbdirect_socket.connect.{lock,work}

2025-12-15T00:35:55+00:00

This will first be used by the server in order to defer the processing of the initial recv of the negotiation request. But in future it will also be used by the client in order to implement an async connect. Cc: Tom Talpey Cc: Long Li Cc: linux-cifs@vger.kernel.org Cc: samba-technical@lists.samba.org Signed-off-by: Stefan Metzmacher Acked-by: Namjae Jeon Signed-off-by: Steve French

smb: move File Attributes definitions into common/fscc.h

2025-12-11T06:53:03+00:00

These definitions are specified in MS-FSCC 2.6, so move them into fscc.h. Modify the following places: - FILE_ATTRIBUTE__MASK -> FILE_ATTRIBUTE_MASK - Update FILE_ATTRIBUTE_MASK value - cpu_to_le32(constant) -> cpu_to_le32(MACRO DEFINITION) Signed-off-by: ChenXiaoSong Signed-off-by: Steve French

smb: update struct duplicate_extents_to_file_ex

2025-12-11T06:52:54+00:00

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 Signed-off-by: Steve French

smb: move file_notify_information to common/fscc.h

2025-12-10T03:23:03+00:00

This struct definition is specified in MS-FSCC, and KSMBD will also use it, so move it into common header file. Signed-off-by: ChenXiaoSong Signed-off-by: Steve French

smb: move SMB2 Notify Action Flags into common/smb2pdu.h

2025-12-10T03:22:58+00:00

Some of these definitions are already in common/smb2pdu.h. Remove the duplicate client side definitions, and add all SMB2 Notify Action Flags to common header file. Signed-off-by: ChenXiaoSong Signed-off-by: Steve French