This is a note to let you know that I've just added the patch titled
ksmbd: smbd: change the default maximum read/write, receive size
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ksmbd-smbd-change-the-default-maximum-read-write-receive-size.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From stable+bounces-7649-greg=kroah.com@xxxxxxxxxxxxxxx Mon Dec 18 16:39:23 2023
From: Namjae Jeon <linkinjeon@xxxxxxxxxx>
Date: Tue, 19 Dec 2023 00:32:40 +0900
Subject: ksmbd: smbd: change the default maximum read/write, receive size
To: gregkh@xxxxxxxxxxxxxxxxxxx, stable@xxxxxxxxxxxxxxx
Cc: smfrench@xxxxxxxxx, Hyunchul Lee <hyc.lee@xxxxxxxxx>, Namjae Jeon <linkinjeon@xxxxxxxxxx>, Steve French <stfrench@xxxxxxxxxxxxx>
Message-ID: <20231218153454.8090-21-linkinjeon@xxxxxxxxxx>
From: Hyunchul Lee <hyc.lee@xxxxxxxxx>
[ Upstream commit 4d02c4fdc0e256b493f9a3b604c7ff18f0019f17 ]
Due to restriction that cannot handle multiple
buffer descriptor structures, decrease the maximum
read/write size for Windows clients.
And set the maximum fragmented receive size
in consideration of the receive queue size.
Acked-by: Namjae Jeon <linkinjeon@xxxxxxxxxx>
Signed-off-by: Hyunchul Lee <hyc.lee@xxxxxxxxx>
Signed-off-by: Steve French <stfrench@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
fs/ksmbd/transport_rdma.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
--- a/fs/ksmbd/transport_rdma.c
+++ b/fs/ksmbd/transport_rdma.c
@@ -1914,7 +1914,9 @@ static int smb_direct_prepare(struct ksm
st->max_send_size = min_t(int, st->max_send_size,
le32_to_cpu(req->max_receive_size));
st->max_fragmented_send_size =
- le32_to_cpu(req->max_fragmented_size);
+ le32_to_cpu(req->max_fragmented_size);
+ st->max_fragmented_recv_size =
+ (st->recv_credit_max * st->max_recv_size) / 2;
ret = smb_direct_send_negotiate_response(st, ret);
out:
Patches currently in stable-queue which might be from kroah.com@xxxxxxxxxxxxxxx are
queue-5.15/ksmbd-remove-unused-parameter-from-smb2_get_name.patch
queue-5.15/ksmbd-smbd-handle-multiple-buffer-descriptors.patch
queue-5.15/ksmbd-add-mnt_want_write-to-ksmbd-vfs-functions.patch
queue-5.15/ksmbd-delete-an-invalid-argument-description-in-smb2_populate_readdir_entry.patch
queue-5.15/ksmbd-remove-smb2_buf_length-in-smb2_transform_hdr.patch
queue-5.15/ksmbd-fix-smb2_set_info_file-kernel-doc-comment.patch
queue-5.15/ksmbd-remove-unused-fields-from-ksmbd_file-struct-definition.patch
queue-5.15/ksmbd-set-445-port-to-smbdirect-port-by-default.patch
queue-5.15/ksmbd-use-ksmbd_req_buf_next-in-ksmbd_verify_smb_message.patch
queue-5.15/ksmbd-set-both-ipv4-and-ipv6-in-fsctl_query_network_interface_info.patch
queue-5.15/ksmbd-reduce-descriptor-size-if-remaining-bytes-is-less-than-request-size.patch
queue-5.15/ksmbd-fix-smb2_get_name-kernel-doc-comment.patch
queue-5.15/ksmbd-register-ksmbd-ib-client-with-ib_register_client.patch
queue-5.15/ksmbd-smbd-fix-missing-client-s-memory-region-invalidation.patch
queue-5.15/ksmbd-fix-parameter-name-and-comment-mismatch.patch
queue-5.15/ksmbd-smbd-call-rdma_accept-under-cm-handler.patch
queue-5.15/ksmdb-use-cmd-helper-variable-in-smb2_get_ksmbd_tcon.patch
queue-5.15/ksmbd-smbd-change-the-default-maximum-read-write-receive-size.patch
queue-5.15/ksmbd-smbd-remove-useless-license-text-when-spdx-license-identifier-is-already-used.patch
queue-5.15/ksmbd-check-the-validation-of-pdu_size-in-ksmbd_conn_handler_loop.patch
queue-5.15/ksmbd-fix-buffer_check_err-kernel-doc-comment.patch
queue-5.15/ksmbd-remove-redundant-flush_workqueue-calls.patch
queue-5.15/ksmbd-smbd-create-mr-pool.patch
queue-5.15/ksmbd-remove-smb2_buf_length-in-smb2_hdr.patch
queue-5.15/ksmbd-remove-md4-leftovers.patch
queue-5.15/ksmbd-add-smb-direct-shutdown.patch
