linux-kernel - [PATCH] cifs: Add a couple of missing smb3_rw

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Message-ID: <1040867.1760953079@warthog.procyon.org.uk>
Date: Mon, 20 Oct 2025 10:37:59 +0100
From: David Howells <dhowells@...hat.com>
To: Steve French <sfrench@...ba.org>
cc: dhowells@...hat.com, Paulo Alcantara <pc@...guebit.org>,
    Shyam Prasad N <sprasad@...rosoft.com>, Tom Talpey <tom@...pey.com>,
    linux-cifs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
    linux-kernel@...r.kernel.org
Subject: [PATCH] cifs: Add a couple of missing smb3_rw_credits tracepoints

Add missing smb3_rw_credits tracepoints to cifs_readv_callback() (for SMB1)
to match those of SMB2/3.

Signed-off-by: David Howells <dhowells@...hat.com>
cc: Steve French <sfrench@...ba.org>
cc: Paulo Alcantara <pc@...guebit.org>
cc: Shyam Prasad N <sprasad@...rosoft.com>
cc: Tom Talpey <tom@...pey.com>
cc: linux-cifs@...r.kernel.org
cc: linux-fsdevel@...r.kernel.org
---
 fs/smb/client/cifssmb.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/fs/smb/client/cifssmb.c b/fs/smb/client/cifssmb.c
index 7368479ac9c4..6acec5a229ac 100644
--- a/fs/smb/client/cifssmb.c
+++ b/fs/smb/client/cifssmb.c
@@ -1294,6 +1294,8 @@ cifs_readv_callback(struct TCP_Server_Info *server, struct smb_message *smb)
 		.rreq_debug_id = rdata->rreq->debug_id,
 		.rreq_debug_index = rdata->subreq.debug_index,
 	};
+	unsigned int rreq_debug_id = rdata->rreq->debug_id;
+	unsigned int subreq_debug_index = rdata->subreq.debug_index;
 
 	cifs_dbg(FYI, "%s: mid=%llu state=%d result=%d bytes=%zu\n",
 		 __func__, smb->mid, smb->mid_state, rdata->result,
@@ -1357,12 +1359,18 @@ cifs_readv_callback(struct TCP_Server_Info *server, struct smb_message *smb)
 			__set_bit(NETFS_SREQ_MADE_PROGRESS, &rdata->subreq.flags);
 	}
 
+	trace_smb3_rw_credits(rreq_debug_id, subreq_debug_index, rdata->credits.value,
+			      server->credits, server->in_flight,
+			      0, cifs_trace_rw_credits_read_response_clear);
 	rdata->credits.value = 0;
 	rdata->subreq.error = rdata->result;
 	rdata->subreq.transferred += smb->resp_data_len;
 	trace_netfs_sreq(&rdata->subreq, netfs_sreq_trace_io_progress);
 	netfs_read_subreq_terminated(&rdata->subreq);
 	add_credits(server, &credits, 0);
+	trace_smb3_rw_credits(rreq_debug_id, subreq_debug_index, 0,
+			      server->credits, server->in_flight,
+			      credits.value, cifs_trace_rw_credits_read_response_add);
 }
 
 /* cifs_async_readv - send an async write, and set up mid to handle result */