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From 51f691acd8042351d005873996d7bf4c7b045508 Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Fri, 17 Dec 2021 17:46:53 +0100
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Subject: [PATCH 08/12] iotests: Test qemu-img convert of zeroed data cluster
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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RH-MergeRequest: 70: qemu-img convert: Fix sparseness of output image
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RH-Commit: [1/2] 0770582c553ac6b0f18c035f9a0238599d4763cc (kmwolf/centos-qemu-kvm)
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RH-Bugzilla: 1882917
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RH-Acked-by: Eric Blake <eblake@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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RH-Acked-by: Hanna Reitz <hreitz@redhat.com>
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This demonstrates what happens when the block status changes in
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sub-min_sparse granularity, but all of the parts are zeroed out. The
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alignment logic in is_allocated_sectors() prevents that the target image
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remains fully sparse as expected, but turns it into a data cluster of
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explicit zeros.
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
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Message-Id: <20211217164654.1184218-2-vsementsov@virtuozzo.com>
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Tested-by: Peter Lieven <pl@kamp.de>
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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(cherry picked from commit 51cd8bddd63540514d44808f7920811439baa253)
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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---
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tests/qemu-iotests/122 | 1 +
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tests/qemu-iotests/122.out | 10 ++++++++--
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2 files changed, 9 insertions(+), 2 deletions(-)
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diff --git a/tests/qemu-iotests/122 b/tests/qemu-iotests/122
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index efb260d822..be0f6b79e5 100755
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--- a/tests/qemu-iotests/122
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+++ b/tests/qemu-iotests/122
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@@ -251,6 +251,7 @@ $QEMU_IO -c "write -P 0 0 64k" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_test
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$QEMU_IO -c "write 0 1k" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
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$QEMU_IO -c "write 8k 1k" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
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$QEMU_IO -c "write 17k 1k" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
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+$QEMU_IO -c "write -P 0 65k 1k" "$TEST_IMG" 2>&1 | _filter_qemu_io | _filter_testdir
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for min_sparse in 4k 8k; do
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echo
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diff --git a/tests/qemu-iotests/122.out b/tests/qemu-iotests/122.out
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index 8fbdac2b39..69b8e8b803 100644
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--- a/tests/qemu-iotests/122.out
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+++ b/tests/qemu-iotests/122.out
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@@ -192,6 +192,8 @@ wrote 1024/1024 bytes at offset 8192
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1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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wrote 1024/1024 bytes at offset 17408
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1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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+wrote 1024/1024 bytes at offset 66560
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+1 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
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convert -S 4k
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[{ "start": 0, "length": 4096, "depth": 0, "present": true, "zero": false, "data": true, "offset": OFFSET},
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@@ -199,7 +201,9 @@ convert -S 4k
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{ "start": 8192, "length": 4096, "depth": 0, "present": true, "zero": false, "data": true, "offset": OFFSET},
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{ "start": 12288, "length": 4096, "depth": 0, "present": false, "zero": true, "data": false},
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{ "start": 16384, "length": 4096, "depth": 0, "present": true, "zero": false, "data": true, "offset": OFFSET},
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-{ "start": 20480, "length": 67088384, "depth": 0, "present": false, "zero": true, "data": false}]
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+{ "start": 20480, "length": 46080, "depth": 0, "present": false, "zero": true, "data": false},
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+{ "start": 66560, "length": 1024, "depth": 0, "present": true, "zero": false, "data": true, "offset": OFFSET},
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+{ "start": 67584, "length": 67041280, "depth": 0, "present": false, "zero": true, "data": false}]
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convert -c -S 4k
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[{ "start": 0, "length": 1024, "depth": 0, "present": true, "zero": false, "data": true},
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@@ -211,7 +215,9 @@ convert -c -S 4k
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convert -S 8k
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[{ "start": 0, "length": 24576, "depth": 0, "present": true, "zero": false, "data": true, "offset": OFFSET},
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-{ "start": 24576, "length": 67084288, "depth": 0, "present": false, "zero": true, "data": false}]
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+{ "start": 24576, "length": 41984, "depth": 0, "present": false, "zero": true, "data": false},
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+{ "start": 66560, "length": 1024, "depth": 0, "present": true, "zero": false, "data": true, "offset": OFFSET},
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+{ "start": 67584, "length": 67041280, "depth": 0, "present": false, "zero": true, "data": false}]
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convert -c -S 8k
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[{ "start": 0, "length": 1024, "depth": 0, "present": true, "zero": false, "data": true},
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--
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2.27.0
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