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From 8942f48f8ba0a7f3e68cf4a0c9b9ad5e1c35b88b Mon Sep 17 00:00:00 2001
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Message-Id: <8942f48f8ba0a7f3e68cf4a0c9b9ad5e1c35b88b@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Fri, 17 Aug 2018 12:05:13 +0200
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Subject: [PATCH] qemu: hotplug: Fix asynchronous unplug of 'shmem'
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commit 5c81c342a7 forgot to skip the detaching of the shmem backend
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when async unplug is requested which meant that we've tried to unplug
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the backend prior to delivery of the DEVICE_DELETED event.
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Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1618622
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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(cherry picked from commit 69c20e1090059d8b359fdd435e8ba50db7269be1)
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https: //bugzilla.redhat.com/show_bug.cgi?id=1618680
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Reviewed-by: Erik Skultety <eskultet@redhat.com>
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---
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src/qemu/qemu_hotplug.c | 11 ++++++++---
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1 file changed, 8 insertions(+), 3 deletions(-)
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diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
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index 053ddb14ec..397a2bdde2 100644
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--- a/src/qemu/qemu_hotplug.c
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+++ b/src/qemu/qemu_hotplug.c
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@@ -5262,11 +5262,16 @@ qemuDomainDetachShmemDevice(virQEMUDriverPtr driver,
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if (qemuDomainObjExitMonitor(driver, vm) < 0)
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goto cleanup;
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- if ((ret = qemuDomainWaitForDeviceRemoval(vm)) == 1)
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- ret = qemuDomainRemoveShmemDevice(driver, vm, shmem);
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+ if (async) {
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+ ret = 0;
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+ } else {
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+ if ((ret = qemuDomainWaitForDeviceRemoval(vm)) == 1)
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+ ret = qemuDomainRemoveShmemDevice(driver, vm, shmem);
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+ }
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cleanup:
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- qemuDomainResetDeviceRemoval(vm);
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+ if (!async)
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+ qemuDomainResetDeviceRemoval(vm);
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return ret;
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}
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--
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2.18.0
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