From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: stable@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
patches@lists.linux.dev, Steve French <smfrench@gmail.com>,
Tom Talpey <tom@talpey.com>, Long Li <longli@microsoft.com>,
linux-cifs@vger.kernel.org, samba-technical@lists.samba.org,
Namjae Jeon <linkinjeon@kernel.org>,
Stefan Metzmacher <metze@samba.org>,
Steve French <stfrench@microsoft.com>,
Sasha Levin <sashal@kernel.org>
Subject: [PATCH 6.17 028/184] smb: client: queue post_recv_credits_work also if the peer raises the credit target
Date: Mon, 27 Oct 2025 19:35:10 +0100 [thread overview]
Message-ID: <20251027183515.683750637@linuxfoundation.org> (raw)
In-Reply-To: <20251027183514.934710872@linuxfoundation.org>
6.17-stable review patch. If anyone has any objections, please let me know.
------------------
From: Stefan Metzmacher <metze@samba.org>
[ Upstream commit 02548c477a90481c1fd0d6e7c84b4504ec2fcc12 ]
This is already handled in the server, but currently it done
in a very complex way there. So we do it much simpler.
Note that put_receive_buffer() will take care of it
in case data_length is 0.
Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/smb/client/smbdirect.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/fs/smb/client/smbdirect.c b/fs/smb/client/smbdirect.c
index 6480945c24592..b3e04b410afe6 100644
--- a/fs/smb/client/smbdirect.c
+++ b/fs/smb/client/smbdirect.c
@@ -537,6 +537,7 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc)
struct smbdirect_socket_parameters *sp = &sc->parameters;
struct smbd_connection *info =
container_of(sc, struct smbd_connection, socket);
+ int old_recv_credit_target;
u32 data_offset = 0;
u32 data_length = 0;
u32 remaining_data_length = 0;
@@ -599,6 +600,7 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc)
}
atomic_dec(&info->receive_credits);
+ old_recv_credit_target = info->receive_credit_target;
info->receive_credit_target =
le16_to_cpu(data_transfer->credits_requested);
if (le16_to_cpu(data_transfer->credits_granted)) {
@@ -629,6 +631,9 @@ static void recv_done(struct ib_cq *cq, struct ib_wc *wc)
* reassembly queue and wake up the reading thread
*/
if (data_length) {
+ if (info->receive_credit_target > old_recv_credit_target)
+ queue_work(info->workqueue, &info->post_send_credits_work);
+
enqueue_reassembly(info, response, data_length);
wake_up_interruptible(&sc->recv_io.reassembly.wait_queue);
} else
--
2.51.0
next parent reply other threads:[~2025-10-27 19:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20251027183514.934710872@linuxfoundation.org>
2025-10-27 18:35 ` Greg Kroah-Hartman [this message]
2025-10-27 18:35 ` [PATCH 6.17 029/184] smb: client: limit the range of info->receive_credit_target Greg Kroah-Hartman
2025-10-27 18:35 ` [PATCH 6.17 030/184] smb: client: make use of ib_wc_status_msg() and skip IB_WC_WR_FLUSH_ERR logging Greg Kroah-Hartman
2025-10-27 18:35 ` [PATCH 6.17 031/184] smb: server: let smb_direct_flush_send_list() invalidate a remote key first Greg Kroah-Hartman
2025-10-27 18:36 ` [PATCH 6.17 084/184] smb: client: get rid of d_drop() in cifs_do_rename() Greg Kroah-Hartman
2025-10-27 18:36 ` [PATCH 6.17 088/184] cifs: Fix TCP_Server_Info::credits to be signed Greg Kroah-Hartman
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