Commit 35a2b533 authored by Steve French's avatar Steve French
Browse files

smb3: add trace point for oplock not found 



In order to debug problems with server potentially
sending us an oplock that we don't recognize (or a race
with close and oplock break) it would be helpful to have
a dynamic trace point for this case.  New tracepoint
is called trace_smb3_oplock_not_found

Signed-off-by: default avatarSteve French <stfrench@microsoft.com>
parent 2b058ace

fs/cifs/smb2misc.c

+4 −0
Original line number Diff line number Diff line
@@ -732,6 +732,10 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server) 
	}

	spin_unlock(&cifs_tcp_ses_lock);

	cifs_dbg(FYI, "No file id matched, oplock break ignored\n");

	trace_smb3_oplock_not_found(0 /* no xid */, rsp->PersistentFid,

				  le32_to_cpu(rsp->hdr.Id.SyncId.TreeId),

				  le64_to_cpu(rsp->hdr.SessionId));



	return true;

}

fs/cifs/trace.h

+1 −0
Original line number Diff line number Diff line
@@ -158,6 +158,7 @@ DEFINE_SMB3_FD_EVENT(flush_enter); 
DEFINE_SMB3_FD_EVENT(flush_done);

DEFINE_SMB3_FD_EVENT(close_enter);

DEFINE_SMB3_FD_EVENT(close_done);

DEFINE_SMB3_FD_EVENT(oplock_not_found);



DECLARE_EVENT_CLASS(smb3_fd_err_class,

	TP_PROTO(unsigned int xid,