diff options
| author | Steve French <stfrench@microsoft.com> | 2019-02-25 00:52:43 -0600 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-03-05 18:10:04 -0600 |
| commit | d323c24617527f28cdb03f3bb7d8f9b62eecee80 (patch) | |
| tree | 6e0d6b0b4e91e101d6607a9417e12bf7fcd04379 | |
| parent | adb3b4e90e103f8300cf2b7187016dad13e848c6 (diff) | |
smb3: Add tracepoints for read, write and query_dir enter
Allows tracing begin (not just completion) of read, write
and query_dir which may be helpful in finding slow requests
and other timing information
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Pavel Shilovsky <pshilov@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
| -rw-r--r-- | fs/cifs/smb2pdu.c | 15 | ||||
| -rw-r--r-- | fs/cifs/trace.h | 3 |
2 files changed, 18 insertions, 0 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c index 965c4c7e87f9..ec9abe293279 100644 --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -3142,6 +3142,11 @@ smb2_new_read_req(void **buf, unsigned int *total_len, req->MinimumCount = 0; req->Length = cpu_to_le32(io_parms->length); req->Offset = cpu_to_le64(io_parms->offset); + + trace_smb3_read_enter(0 /* xid */, + io_parms->persistent_fid, + io_parms->tcon->tid, io_parms->tcon->ses->Suid, + io_parms->offset, io_parms->length); #ifdef CONFIG_CIFS_SMB_DIRECT /* * If we want to do a RDMA write, fill in and append @@ -3541,6 +3546,9 @@ smb2_async_writev(struct cifs_writedata *wdata, req->DataOffset = cpu_to_le16( offsetof(struct smb2_write_req, Buffer)); req->RemainingBytes = 0; + + trace_smb3_write_enter(0 /* xid */, wdata->cfile->fid.persistent_fid, + tcon->tid, tcon->ses->Suid, wdata->offset, wdata->bytes); #ifdef CONFIG_CIFS_SMB_DIRECT /* * If we want to do a server RDMA read, fill in and append @@ -3688,6 +3696,10 @@ 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, + io_parms->tcon->tid, io_parms->tcon->ses->Suid, + io_parms->offset, io_parms->length); + iov[0].iov_base = (char *)req; /* 1 for Buffer */ iov[0].iov_len = total_len - 1; @@ -3850,6 +3862,9 @@ SMB2_query_directory(const unsigned int xid, struct cifs_tcon *tcon, rqst.rq_iov = iov; rqst.rq_nvec = 2; + trace_smb3_query_dir_enter(xid, persistent_fid, tcon->tid, + tcon->ses->Suid, index, output_size); + rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov); cifs_small_buf_release(req); rsp = (struct smb2_query_directory_rsp *)rsp_iov.iov_base; diff --git a/fs/cifs/trace.h b/fs/cifs/trace.h index bf4f43f6893b..660176e34dde 100644 --- a/fs/cifs/trace.h +++ b/fs/cifs/trace.h @@ -101,6 +101,9 @@ DEFINE_EVENT(smb3_rw_done_class, smb3_##name, \ __u32 len), \ TP_ARGS(xid, fid, tid, sesid, offset, len)) +DEFINE_SMB3_RW_DONE_EVENT(write_enter); +DEFINE_SMB3_RW_DONE_EVENT(read_enter); +DEFINE_SMB3_RW_DONE_EVENT(query_dir_enter); DEFINE_SMB3_RW_DONE_EVENT(write_done); DEFINE_SMB3_RW_DONE_EVENT(read_done); DEFINE_SMB3_RW_DONE_EVENT(query_dir_done); |