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From 74ee4616dd3159f4456ec9d4fd22b4604394440b Mon Sep 17 00:00:00 2001
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Message-Id: <74ee4616dd3159f4456ec9d4fd22b4604394440b@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Mon, 16 Mar 2020 22:12:17 +0100
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Subject: [PATCH] qemuCheckpointDiscardBitmaps: Reopen images for bitmap
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modifications
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Qemu's bitmap APIs don't reopen the appropriate images read-write for
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modification. It's libvirt's duty to reopen them via blockdev-reopen
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if we wish to modify the bitmaps.
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Use the new helpers to reopen the images for bitmap manipulation.
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Signed-off-by: Peter Krempa <pkrempa@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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(cherry picked from commit c6d117528cc0ddb325abd67d69b6d4ebc1bfe608)
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https://bugzilla.redhat.com/show_bug.cgi?id=1799013
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Message-Id: <c5378d64ab79d29e62b5b65d1566825b5bc88eff.1584391727.git.pkrempa@redhat.com>
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Reviewed-by: Ján Tomko <jtomko@redhat.com>
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---
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src/qemu/qemu_checkpoint.c | 7 +++++++
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1 file changed, 7 insertions(+)
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diff --git a/src/qemu/qemu_checkpoint.c b/src/qemu/qemu_checkpoint.c
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index fe54af74ec..6e3a432022 100644
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--- a/src/qemu/qemu_checkpoint.c
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+++ b/src/qemu/qemu_checkpoint.c
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@@ -302,6 +302,10 @@ qemuCheckpointDiscardBitmaps(virDomainObjPtr vm,
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false, false, false) < 0)
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goto relabel;
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+ if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV_REOPEN) &&
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+ qemuBlockReopenReadWrite(vm, src, QEMU_ASYNC_JOB_NONE) < 0)
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+ goto relabel;
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+
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relabelimages = g_slist_prepend(relabelimages, src);
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}
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@@ -314,6 +318,9 @@ qemuCheckpointDiscardBitmaps(virDomainObjPtr vm,
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for (next = relabelimages; next; next = next->next) {
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virStorageSourcePtr src = next->data;
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+ if (virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_BLOCKDEV_REOPEN))
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+ ignore_value(qemuBlockReopenReadOnly(vm, src, QEMU_ASYNC_JOB_NONE));
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+
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ignore_value(qemuDomainStorageSourceAccessAllow(driver, vm, src,
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true, false, false));
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}
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--
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2.25.1
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