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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: Steve French <stfrench@microsoft.com>
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@ -732,6 +732,10 @@ smb2_is_valid_oplock_break(char *buffer, struct TCP_Server_Info *server)
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}
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spin_unlock(&cifs_tcp_ses_lock);
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cifs_dbg(FYI, "No file id matched, oplock break ignored\n");
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trace_smb3_oplock_not_found(0 /* no xid */, rsp->PersistentFid,
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le32_to_cpu(rsp->hdr.Id.SyncId.TreeId),
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le64_to_cpu(rsp->hdr.SessionId));
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return true;
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}
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@ -158,6 +158,7 @@ DEFINE_SMB3_FD_EVENT(flush_enter);
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DEFINE_SMB3_FD_EVENT(flush_done);
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DEFINE_SMB3_FD_EVENT(close_enter);
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DEFINE_SMB3_FD_EVENT(close_done);
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DEFINE_SMB3_FD_EVENT(oplock_not_found);
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DECLARE_EVENT_CLASS(smb3_fd_err_class,
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TP_PROTO(unsigned int xid,
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