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[Qemu-devel] [PULL 04/23] memory: make memory_listener_unregister idempo
From: |
Michael S. Tsirkin |
Subject: |
[Qemu-devel] [PULL 04/23] memory: make memory_listener_unregister idempotent |
Date: |
Fri, 17 Feb 2017 21:54:06 +0200 |
From: Paolo Bonzini <address@hidden>
Make it easy to unregister a MemoryListener without tracking whether it
had been registered before.
Signed-off-by: Paolo Bonzini <address@hidden>
Reviewed-by: Philippe Mathieu-Daudé <address@hidden>
Reviewed-by: Michael S. Tsirkin <address@hidden>
Signed-off-by: Michael S. Tsirkin <address@hidden>
---
memory.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/memory.c b/memory.c
index 6c58373..ed8b5aa 100644
--- a/memory.c
+++ b/memory.c
@@ -2371,8 +2371,13 @@ void memory_listener_register(MemoryListener *listener,
AddressSpace *as)
void memory_listener_unregister(MemoryListener *listener)
{
+ if (!listener->address_space) {
+ return;
+ }
+
QTAILQ_REMOVE(&memory_listeners, listener, link);
QTAILQ_REMOVE(&listener->address_space->listeners, listener, link_as);
+ listener->address_space = NULL;
}
void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name)
--
MST
- [Qemu-devel] [PULL 00/23] virtio, pci: fixes, features, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 01/23] pci/pcie: don't assume cap id 0 is reserved, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 03/23] docs: add document to explain the usage of vNVDIMM, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 04/23] memory: make memory_listener_unregister idempotent,
Michael S. Tsirkin <=
- [Qemu-devel] [PULL 02/23] virtio: Report real progress in VQ aio poll handler, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 05/23] virtio: add virtio_*_phys_cached, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 07/23] exec: make address_space_cache_destroy idempotent, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 06/23] virtio: use address_space_map/unmap to access descriptors, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 08/23] virtio: use MemoryRegionCache to access descriptors, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 09/23] virtio: add MemoryListener to cache ring translations, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 11/23] virtio: check for vring setup in virtio_queue_update_used_idx, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 10/23] virtio: use VRingMemoryRegionCaches for descriptor ring, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 13/23] virtio: Fix no interrupt when not creating msi controller, Michael S. Tsirkin, 2017/02/17
- [Qemu-devel] [PULL 12/23] virtio: use VRingMemoryRegionCaches for avail and used rings, Michael S. Tsirkin, 2017/02/17