From 179e44d49c2f6f4e90479f0a98d896e415742c96 Mon Sep 17 00:00:00 2001 From: Steve French Date: Fri, 28 Sep 2018 19:44:23 -0500 Subject: smb3: add tracepoint for sending lease break responses to server Be able to log a ftrace message on success and/or failure of sending a lease break response to the server. Example output: TASK-PID CPU# |||| TIMESTAMP FUNCTION | | | |||| | | kworker/1:1-5681 [001] .... 11123.530457: smb3_lease_done: sid=0x291e3e0f tid=0x8ba43071 lease_key=0x1852ca0d3ecd9b55847750a86716fde lease_state=0x0 Signed-off-by: Steve French Reviewed-by: Aurelien Aptel --- fs/cifs/smb2pdu.c | 10 ++++++- fs/cifs/trace.h | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 88 insertions(+), 1 deletion(-) (limited to 'fs/cifs') diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 5f1d9994fd7a..3d331db65785 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -4277,6 +4277,8 @@ SMB2_lease_break(const unsigned int xid, struct cifs_tcon *tcon, struct kvec iov[1]; struct kvec rsp_iov; int resp_buf_type; + __u64 *please_key_high; + __u64 *please_key_low; cifs_dbg(FYI, "SMB2_lease_break\n"); rc = smb2_plain_req_init(SMB2_OPLOCK_BREAK, tcon, (void **) &req, @@ -4306,10 +4308,16 @@ SMB2_lease_break(const unsigned int xid, struct cifs_tcon *tcon, rc = cifs_send_recv(xid, ses, &rqst, &resp_buf_type, flags, &rsp_iov); cifs_small_buf_release(req); + please_key_low = (__u64 *)req->LeaseKey; + please_key_high = (__u64 *)(req->LeaseKey+8); if (rc) { cifs_stats_fail_inc(tcon, SMB2_OPLOCK_BREAK_HE); + trace_smb3_lease_err(le32_to_cpu(lease_state), tcon->tid, + ses->Suid, *please_key_low, *please_key_high, rc); cifs_dbg(FYI, "Send error in Lease Break = %d\n", rc); - } + } else + trace_smb3_lease_done(le32_to_cpu(lease_state), tcon->tid, + ses->Suid, *please_key_low, *please_key_high); return rc; } diff --git a/fs/cifs/trace.h b/fs/cifs/trace.h index 43e5bd417b81..cce8414fe7ec 100644 --- a/fs/cifs/trace.h +++ b/fs/cifs/trace.h @@ -460,6 +460,85 @@ DEFINE_EVENT(smb3_open_done_class, smb3_##name, \ DEFINE_SMB3_OPEN_DONE_EVENT(open_done); DEFINE_SMB3_OPEN_DONE_EVENT(posix_mkdir_done); + +DECLARE_EVENT_CLASS(smb3_lease_done_class, + TP_PROTO(__u32 lease_state, + __u32 tid, + __u64 sesid, + __u64 lease_key_low, + __u64 lease_key_high), + TP_ARGS(lease_state, tid, sesid, lease_key_low, lease_key_high), + TP_STRUCT__entry( + __field(__u32, lease_state) + __field(__u32, tid) + __field(__u64, sesid) + __field(__u64, lease_key_low) + __field(__u64, lease_key_high) + ), + TP_fast_assign( + __entry->lease_state = lease_state; + __entry->tid = tid; + __entry->sesid = sesid; + __entry->lease_key_low = lease_key_low; + __entry->lease_key_high = lease_key_high; + ), + TP_printk("sid=0x%llx tid=0x%x lease_key=0x%llx%llx lease_state=0x%x", + __entry->sesid, __entry->tid, __entry->lease_key_high, + __entry->lease_key_low, __entry->lease_state) +) + +#define DEFINE_SMB3_LEASE_DONE_EVENT(name) \ +DEFINE_EVENT(smb3_lease_done_class, smb3_##name, \ + TP_PROTO(__u32 lease_state, \ + __u32 tid, \ + __u64 sesid, \ + __u64 lease_key_low, \ + __u64 lease_key_high), \ + TP_ARGS(lease_state, tid, sesid, lease_key_low, lease_key_high)) + +DEFINE_SMB3_LEASE_DONE_EVENT(lease_done); + +DECLARE_EVENT_CLASS(smb3_lease_err_class, + TP_PROTO(__u32 lease_state, + __u32 tid, + __u64 sesid, + __u64 lease_key_low, + __u64 lease_key_high, + int rc), + TP_ARGS(lease_state, tid, sesid, lease_key_low, lease_key_high, rc), + TP_STRUCT__entry( + __field(__u32, lease_state) + __field(__u32, tid) + __field(__u64, sesid) + __field(__u64, lease_key_low) + __field(__u64, lease_key_high) + __field(int, rc) + ), + TP_fast_assign( + __entry->lease_state = lease_state; + __entry->tid = tid; + __entry->sesid = sesid; + __entry->lease_key_low = lease_key_low; + __entry->lease_key_high = lease_key_high; + __entry->rc = rc; + ), + TP_printk("sid=0x%llx tid=0x%x lease_key=0x%llx%llx lease_state=0x%x rc=%d", + __entry->sesid, __entry->tid, __entry->lease_key_high, + __entry->lease_key_low, __entry->lease_state, __entry->rc) +) + +#define DEFINE_SMB3_LEASE_ERR_EVENT(name) \ +DEFINE_EVENT(smb3_lease_err_class, smb3_##name, \ + TP_PROTO(__u32 lease_state, \ + __u32 tid, \ + __u64 sesid, \ + __u64 lease_key_low, \ + __u64 lease_key_high, \ + int rc), \ + TP_ARGS(lease_state, tid, sesid, lease_key_low, lease_key_high, rc)) + +DEFINE_SMB3_LEASE_ERR_EVENT(lease_err); + DECLARE_EVENT_CLASS(smb3_reconnect_class, TP_PROTO(__u64 currmid, char *hostname), -- cgit v1.2.3