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From c13c12dd0abcb0e9800fa3a4769460067c0a5401 Mon Sep 17 00:00:00 2001
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From: Max Reitz <mreitz@redhat.com>
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Date: Sat, 13 Jun 2015 16:22:01 +0200
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Subject: [PATCH 07/42] qapi/block: Add "fatal" to BLOCK_IMAGE_CORRUPTED
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Message-id: <1434212556-3927-8-git-send-email-mreitz@redhat.com>
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Patchwork-id: 66026
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O-Subject: [RHEL-7.2 qemu-kvm PATCH 07/42] qapi/block: Add "fatal" to BLOCK_IMAGE_CORRUPTED
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Bugzilla: 1129893
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RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
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BZ: 1129893
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Not every BLOCK_IMAGE_CORRUPTED event must be fatal; for example, when
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reading from an image, they should generally not be. Nonetheless, even
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an image only read from may of course be corrupted and this can be
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detected during normal operation. In this case, a non-fatal event should
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be emitted, but the image should not be marked corrupt (in accordance to
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"fatal" set to false).
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Message-id: 1409926039-29044-2-git-send-email-mreitz@redhat.com
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Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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(cherry picked from commit 9bf040b962f90aa2e1cef6543dfee6c96f73ef7e)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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Conflicts:
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block/qcow2-refcount.c
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qapi/block-core.json
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QMP/qmp-events.txt
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Upstream, there is a more sophisticated QMP event support than just a
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list of events in a text file.
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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---
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QMP/qmp-events.txt | 5 ++++-
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block/qcow2-refcount.c | 4 ++--
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2 files changed, 6 insertions(+), 3 deletions(-)
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diff --git a/QMP/qmp-events.txt b/QMP/qmp-events.txt
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index 7d16a6d..39daed4 100644
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--- a/QMP/qmp-events.txt
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+++ b/QMP/qmp-events.txt
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@@ -31,13 +31,16 @@ Data:
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offset into the image (json-int)
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- "size": If the corruption resulted from an image access, this is the access
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size (json-int)
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+- "fatal": If set, the image is marked corrupt and therefore unusable after
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+ this event and must be repaired (Since 2.2; before, every
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+ BLOCK_IMAGE_CORRUPTED event was fatal)
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Example:
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{ "event": "BLOCK_IMAGE_CORRUPTED",
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"data": { "device": "ide0-hd0",
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"msg": "Prevented active L1 table overwrite", "offset": 196608,
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- "size": 65536 },
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+ "size": 65536, "fatal": true },
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"timestamp": { "seconds": 1378126126, "microseconds": 966463 } }
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BLOCK_IO_ERROR
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diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
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index 4f86923..6fa6daf 100644
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--- a/block/qcow2-refcount.c
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+++ b/block/qcow2-refcount.c
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@@ -1806,8 +1806,8 @@ int qcow2_pre_write_overlap_check(BlockDriverState *bs, int ign, int64_t offset,
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message = g_strdup_printf("Prevented %s overwrite",
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metadata_ol_names[metadata_ol_bitnr]);
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data = qobject_from_jsonf("{ 'device': %s, 'msg': %s, 'offset': %"
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- PRId64 ", 'size': %" PRId64 " }", bs->device_name, message,
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- offset, size);
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+ PRId64 ", 'size': %" PRId64 ", 'fatal': true }",
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+ bs->device_name, message, offset, size);
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monitor_protocol_event(QEVENT_BLOCK_IMAGE_CORRUPTED, data);
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g_free(message);
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qobject_decref(data);
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--
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1.8.3.1
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