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Message-ID: <2390624.1726687464@warthog.procyon.org.uk>
Date: Wed, 18 Sep 2024 20:24:24 +0100
From: David Howells <dhowells@...hat.com>
To: Steve French <stfrench@...rosoft.com>
cc: dhowells@...hat.com, Paulo Alcantara (Red Hat) <pc@...guebit.com>,
Jeff Layton <jlayton@...nel.org>, linux-cifs@...r.kernel.org,
netfs@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] cifs: Make the write_{enter,done,err} tracepoints display netfs info
Make the write RPC tracepoints use the same trace macro complexes as the
read tracepoints and display the netfs request and subrequest IDs where
available (see commit 519be989717c "cifs: Add a tracepoint to track credits
involved in R/W requests").
Signed-off-by: David Howells <dhowells@...hat.com>
cc: Steve French <stfrench@...rosoft.com>
cc: Paulo Alcantara (Red Hat) <pc@...guebit.com>
cc: Jeff Layton <jlayton@...nel.org>
cc: linux-cifs@...r.kernel.org
cc: netfs@...ts.linux.dev
cc: linux-fsdevel@...r.kernel.org
---
fs/smb/client/smb2pdu.c | 22 +++++++++++++++-------
fs/smb/client/trace.h | 6 +++---
2 files changed, 18 insertions(+), 10 deletions(-)
diff --git a/fs/smb/client/smb2pdu.c b/fs/smb/client/smb2pdu.c
index bb8ecbbe78af..6544deac8069 100644
--- a/fs/smb/client/smb2pdu.c
+++ b/fs/smb/client/smb2pdu.c
@@ -4865,7 +4865,9 @@ smb2_writev_callback(struct mid_q_entry *mid)
#endif
if (result) {
cifs_stats_fail_inc(tcon, SMB2_WRITE_HE);
- trace_smb3_write_err(wdata->xid,
+ trace_smb3_write_err(wdata->rreq->debug_id,
+ wdata->subreq.debug_index,
+ wdata->xid,
wdata->req->cfile->fid.persistent_fid,
tcon->tid, tcon->ses->Suid, wdata->subreq.start,
wdata->subreq.len, wdata->result);
@@ -4873,7 +4875,9 @@ smb2_writev_callback(struct mid_q_entry *mid)
pr_warn_once("Out of space writing to %s\n",
tcon->tree_name);
} else
- trace_smb3_write_done(0 /* no xid */,
+ trace_smb3_write_done(wdata->rreq->debug_id,
+ wdata->subreq.debug_index,
+ wdata->xid,
wdata->req->cfile->fid.persistent_fid,
tcon->tid, tcon->ses->Suid,
wdata->subreq.start, wdata->subreq.len);
@@ -4951,7 +4955,9 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
offsetof(struct smb2_write_req, Buffer));
req->RemainingBytes = 0;
- trace_smb3_write_enter(wdata->xid,
+ trace_smb3_write_enter(wdata->rreq->debug_id,
+ wdata->subreq.debug_index,
+ wdata->xid,
io_parms->persistent_fid,
io_parms->tcon->tid,
io_parms->tcon->ses->Suid,
@@ -5027,7 +5033,9 @@ smb2_async_writev(struct cifs_io_subrequest *wdata)
wdata, flags, &wdata->credits);
/* Can't touch wdata if rc == 0 */
if (rc) {
- trace_smb3_write_err(xid,
+ trace_smb3_write_err(wdata->rreq->debug_id,
+ wdata->subreq.debug_index,
+ xid,
io_parms->persistent_fid,
io_parms->tcon->tid,
io_parms->tcon->ses->Suid,
@@ -5107,7 +5115,7 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
offsetof(struct smb2_write_req, Buffer));
req->RemainingBytes = 0;
- trace_smb3_write_enter(xid, io_parms->persistent_fid,
+ trace_smb3_write_enter(0, 0, xid, io_parms->persistent_fid,
io_parms->tcon->tid, io_parms->tcon->ses->Suid,
io_parms->offset, io_parms->length);
@@ -5128,7 +5136,7 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
rsp = (struct smb2_write_rsp *)rsp_iov.iov_base;
if (rc) {
- trace_smb3_write_err(xid,
+ trace_smb3_write_err(0, 0, xid,
req->PersistentFileId,
io_parms->tcon->tid,
io_parms->tcon->ses->Suid,
@@ -5137,7 +5145,7 @@ SMB2_write(const unsigned int xid, struct cifs_io_parms *io_parms,
cifs_dbg(VFS, "Send error in write = %d\n", rc);
} else {
*nbytes = le32_to_cpu(rsp->DataLength);
- trace_smb3_write_done(xid,
+ trace_smb3_write_done(0, 0, xid,
req->PersistentFileId,
io_parms->tcon->tid,
io_parms->tcon->ses->Suid,
diff --git a/fs/smb/client/trace.h b/fs/smb/client/trace.h
index 8e9964001e2a..0b52d22a91a0 100644
--- a/fs/smb/client/trace.h
+++ b/fs/smb/client/trace.h
@@ -157,6 +157,7 @@ DEFINE_EVENT(smb3_rw_err_class, smb3_##name, \
TP_ARGS(rreq_debug_id, rreq_debug_index, xid, fid, tid, sesid, offset, len, rc))
DEFINE_SMB3_RW_ERR_EVENT(read_err);
+DEFINE_SMB3_RW_ERR_EVENT(write_err);
/* For logging errors in other file I/O ops */
DECLARE_EVENT_CLASS(smb3_other_err_class,
@@ -202,7 +203,6 @@ DEFINE_EVENT(smb3_other_err_class, smb3_##name, \
int rc), \
TP_ARGS(xid, fid, tid, sesid, offset, len, rc))
-DEFINE_SMB3_OTHER_ERR_EVENT(write_err);
DEFINE_SMB3_OTHER_ERR_EVENT(query_dir_err);
DEFINE_SMB3_OTHER_ERR_EVENT(zero_err);
DEFINE_SMB3_OTHER_ERR_EVENT(falloc_err);
@@ -370,6 +370,8 @@ DEFINE_EVENT(smb3_rw_done_class, smb3_##name, \
DEFINE_SMB3_RW_DONE_EVENT(read_enter);
DEFINE_SMB3_RW_DONE_EVENT(read_done);
+DEFINE_SMB3_RW_DONE_EVENT(write_enter);
+DEFINE_SMB3_RW_DONE_EVENT(write_done);
/* For logging successful other op */
DECLARE_EVENT_CLASS(smb3_other_done_class,
@@ -411,11 +413,9 @@ DEFINE_EVENT(smb3_other_done_class, smb3_##name, \
__u32 len), \
TP_ARGS(xid, fid, tid, sesid, offset, len))
-DEFINE_SMB3_OTHER_DONE_EVENT(write_enter);
DEFINE_SMB3_OTHER_DONE_EVENT(query_dir_enter);
DEFINE_SMB3_OTHER_DONE_EVENT(zero_enter);
DEFINE_SMB3_OTHER_DONE_EVENT(falloc_enter);
-DEFINE_SMB3_OTHER_DONE_EVENT(write_done);
DEFINE_SMB3_OTHER_DONE_EVENT(query_dir_done);
DEFINE_SMB3_OTHER_DONE_EVENT(zero_done);
DEFINE_SMB3_OTHER_DONE_EVENT(falloc_done);
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