MdeModulePkg: Remove event from protocol database only if registered
In a CloseEvent, an UnregisterProtocolNotify is done unconditionally. There is a penalty associated with searching the protocol database on every CloseEvent and impacts performance, especially during Network IO. Unregister needs to be done only if the Event is for a RegisterProtocolNotify. So extend the ExFlag in IEVENT to a UINT8 and define new flags that can be set to indicate if the Event is part of a group, or registered on a protocol notify. Then in CloseEvent, call UnregisterProtocolNotify only if the register protocol notify flag is set. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Samer El-Haj-Mahmoud <samer.el-haj-mahmoud@hpe.com> Reviewed-by: Feng Tian <feng.tian@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18517 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
committed by
erictian
parent
e630f8595a
commit
82f3edf26a
@@ -2,6 +2,7 @@
|
||||
Support functions for UEFI protocol notification infrastructure.
|
||||
|
||||
Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
|
||||
(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
|
||||
This program and the accompanying materials
|
||||
are licensed and made available under the terms and conditions of the BSD License
|
||||
which accompanies this distribution. The full text of the license may be found at
|
||||
@@ -14,7 +15,7 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
|
||||
|
||||
#include "DxeMain.h"
|
||||
#include "Handle.h"
|
||||
|
||||
#include "Event.h"
|
||||
|
||||
/**
|
||||
Signal event for every protocol in protocol entry.
|
||||
@@ -135,7 +136,7 @@ CoreRegisterProtocolNotify (
|
||||
//
|
||||
ProtNotify = AllocatePool (sizeof(PROTOCOL_NOTIFY));
|
||||
if (ProtNotify != NULL) {
|
||||
|
||||
((IEVENT *)Event)->ExFlag |= EVT_EXFLAG_EVENT_PROTOCOL_NOTIFICATION;
|
||||
ProtNotify->Signature = PROTOCOL_NOTIFY_SIGNATURE;
|
||||
ProtNotify->Protocol = ProtEntry;
|
||||
ProtNotify->Event = Event;
|
||||
|
Reference in New Issue
Block a user