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From 3dcba116fd4e0a6df50b905b021151b30ef55714 Mon Sep 17 00:00:00 2001
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Message-Id: <3dcba116fd4e0a6df50b905b021151b30ef55714@dist-git>
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From: Peter Krempa <pkrempa@redhat.com>
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Date: Fri, 1 Dec 2017 15:57:01 +0100
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Subject: [PATCH] qemu: domain: Refactor control flow in
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qemuDomainDetermineDiskChain
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Split out clearing of the backing chain prior to other code since it
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will be required later and optimize few layers of nested conditions and
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loops.
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(cherry picked from commit b19710b9b6039728620a8d557a322ef139529226)
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Conflicts:
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src/qemu/qemu_domain.c:
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a92c4f7537577f1443ddd6fef4e0dfcb054e5f08 was not backported thus
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the code skipping to the end of the backing chain is missing
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This patch only moves the block that clears the backing store
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earlier so that the rest of the patches will apply
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https://bugzilla.redhat.com/show_bug.cgi?id=1509110
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Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
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---
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src/qemu/qemu_domain.c | 11 +++++------
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1 file changed, 5 insertions(+), 6 deletions(-)
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diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
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index 1b5f439621..13d120040b 100644
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--- a/src/qemu/qemu_domain.c
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+++ b/src/qemu/qemu_domain.c
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@@ -6355,12 +6355,11 @@ qemuDomainDetermineDiskChain(virQEMUDriverPtr driver,
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if (virStorageSourceIsEmpty(disk->src))
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goto cleanup;
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- if (virStorageSourceHasBacking(disk->src)) {
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- if (force_probe)
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- virStorageSourceBackingStoreClear(disk->src);
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- else
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- goto cleanup;
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- }
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+ if (force_probe)
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+ virStorageSourceBackingStoreClear(disk->src);
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+
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+ if (virStorageSourceHasBacking(disk->src))
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+ goto cleanup;
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qemuDomainGetImageIds(cfg, vm, disk->src, &uid, &gid;;
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--
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2.15.1
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