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authorSteve French <stfrench@microsoft.com>2019-09-03 18:35:42 -0500
committerSteve French <stfrench@microsoft.com>2019-09-16 11:43:38 -0500
commitf90f979726bc37275995035dbbd55ce8f9b0acde (patch)
tree4d77a987aa9194bcda3b1f4c1477e39f83a63593 /fs/cifs
parentcae53f70f812c845fcedb577b0d40ec97ee4b920 (diff)
downloadlinux-f90f979726bc37275995035dbbd55ce8f9b0acde.tar.bz2
smb3: add dynamic tracepoints for flush and close
We only had dynamic tracepoints on errors in flush and close, but may be helpful to trace enter and non-error exits for those. Sample trace examples (excerpts) from "cp" and "dd" show two of the new tracepoints. cp-22823 [002] .... 123439.179701: smb3_enter: _cifsFileInfo_put: xid=10 cp-22823 [002] .... 123439.179705: smb3_close_enter: xid=10 sid=0x98871327 tid=0xfcd585ff fid=0xc7f84682 cp-22823 [002] .... 123439.179711: smb3_cmd_enter: sid=0x98871327 tid=0xfcd585ff cmd=6 mid=43 cp-22823 [002] .... 123439.180175: smb3_cmd_done: sid=0x98871327 tid=0xfcd585ff cmd=6 mid=43 cp-22823 [002] .... 123439.180179: smb3_close_done: xid=10 sid=0x98871327 tid=0xfcd585ff fid=0xc7f84682 dd-22981 [003] .... 123696.946011: smb3_flush_enter: xid=24 sid=0x98871327 tid=0xfcd585ff fid=0x1917736f dd-22981 [003] .... 123696.946013: smb3_cmd_enter: sid=0x98871327 tid=0xfcd585ff cmd=7 mid=123 dd-22981 [003] .... 123696.956639: smb3_cmd_done: sid=0x98871327 tid=0x0 cmd=7 mid=123 dd-22981 [003] .... 123696.956644: smb3_flush_done: xid=24 sid=0x98871327 tid=0xfcd585ff fid=0x1917736f Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs')
-rw-r--r--fs/cifs/smb2pdu.c10
-rw-r--r--fs/cifs/trace.h35
2 files changed, 43 insertions, 2 deletions
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 0e92983de0b7..4c9c34cdf05f 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -2918,6 +2918,7 @@ SMB2_close_flags(const unsigned int xid, struct cifs_tcon *tcon,
rqst.rq_iov = iov;
rqst.rq_nvec = 1;
+ trace_smb3_close_enter(xid, persistent_fid, tcon->tid, ses->Suid);
rc = SMB2_close_init(tcon, &rqst, persistent_fid, volatile_fid);
if (rc)
goto close_exit;
@@ -2930,7 +2931,9 @@ SMB2_close_flags(const unsigned int xid, struct cifs_tcon *tcon,
trace_smb3_close_err(xid, persistent_fid, tcon->tid, ses->Suid,
rc);
goto close_exit;
- }
+ } else
+ trace_smb3_close_done(xid, persistent_fid, tcon->tid,
+ ses->Suid);
atomic_dec(&tcon->num_remote_opens);
@@ -3353,13 +3356,16 @@ SMB2_flush(const unsigned int xid, struct cifs_tcon *tcon, u64 persistent_fid,
if (rc)
goto flush_exit;
+ trace_smb3_flush_enter(xid, persistent_fid, tcon->tid, ses->Suid);
rc = cifs_send_recv(xid, ses, &rqst, &resp_buftype, flags, &rsp_iov);
if (rc != 0) {
cifs_stats_fail_inc(tcon, SMB2_FLUSH_HE);
trace_smb3_flush_err(xid, persistent_fid, tcon->tid, ses->Suid,
rc);
- }
+ } else
+ trace_smb3_flush_done(xid, persistent_fid, tcon->tid,
+ ses->Suid);
flush_exit:
SMB2_flush_free(&rqst);
diff --git a/fs/cifs/trace.h b/fs/cifs/trace.h
index 99c4d799c24b..f1339f4a2d07 100644
--- a/fs/cifs/trace.h
+++ b/fs/cifs/trace.h
@@ -117,6 +117,41 @@ DEFINE_SMB3_RW_DONE_EVENT(falloc_done);
/*
* For handle based calls other than read and write, and get/set info
*/
+DECLARE_EVENT_CLASS(smb3_fd_class,
+ TP_PROTO(unsigned int xid,
+ __u64 fid,
+ __u32 tid,
+ __u64 sesid),
+ TP_ARGS(xid, fid, tid, sesid),
+ TP_STRUCT__entry(
+ __field(unsigned int, xid)
+ __field(__u64, fid)
+ __field(__u32, tid)
+ __field(__u64, sesid)
+ ),
+ TP_fast_assign(
+ __entry->xid = xid;
+ __entry->fid = fid;
+ __entry->tid = tid;
+ __entry->sesid = sesid;
+ ),
+ TP_printk("\txid=%u sid=0x%llx tid=0x%x fid=0x%llx",
+ __entry->xid, __entry->sesid, __entry->tid, __entry->fid)
+)
+
+#define DEFINE_SMB3_FD_EVENT(name) \
+DEFINE_EVENT(smb3_fd_class, smb3_##name, \
+ TP_PROTO(unsigned int xid, \
+ __u64 fid, \
+ __u32 tid, \
+ __u64 sesid), \
+ TP_ARGS(xid, fid, tid, sesid))
+
+DEFINE_SMB3_FD_EVENT(flush_enter);
+DEFINE_SMB3_FD_EVENT(flush_done);
+DEFINE_SMB3_FD_EVENT(close_enter);
+DEFINE_SMB3_FD_EVENT(close_done);
+
DECLARE_EVENT_CLASS(smb3_fd_err_class,
TP_PROTO(unsigned int xid,
__u64 fid,