From e7eca18cb5fec2c7c99b8e0335d630cc368f712b Mon Sep 17 00:00:00 2001
From: Max Reitz <mreitz@redhat.com>
Date: Sat, 13 Jun 2015 16:22:03 +0200
Subject: [PATCH 09/42] qcow2: Use qcow2_signal_corruption() for overlaps
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Message-id: <1434212556-3927-10-git-send-email-mreitz@redhat.com>
Patchwork-id: 66028
O-Subject: [RHEL-7.2 qemu-kvm PATCH 09/42] qcow2: Use qcow2_signal_corruption() for overlaps
Bugzilla: 1129893
RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
RH-Acked-by: Fam Zheng <famz@redhat.com>
RH-Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
BZ: 1129893
Use the new function in case of a failed overlap check.
This changes output in case of corruption, so adapt iotest 060's
reference output accordingly.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
Message-id: 1409926039-29044-4-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
(cherry picked from commit adb435522b86b3fca2324cb8c94e17b55ae071f1)
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Conflicts:
block/qcow2-refcount.c
qcow2_pre_write_overlap_check() did not use qapi_event_send_*()
downstream, but that code is being removed anyway.
Signed-off-by: Max Reitz <mreitz@redhat.com>
---
block/qcow2-refcount.c | 21 +++------------------
tests/qemu-iotests/060.out | 10 +++++-----
2 files changed, 8 insertions(+), 23 deletions(-)
diff --git a/block/qcow2-refcount.c b/block/qcow2-refcount.c
index 6fa6daf..dbcc4c6 100644
--- a/block/qcow2-refcount.c
+++ b/block/qcow2-refcount.c
@@ -26,7 +26,6 @@
#include "block/block_int.h"
#include "block/qcow2.h"
#include "qemu/range.h"
-#include "qapi/qmp/types.h"
static int64_t alloc_clusters_noref(BlockDriverState *bs, uint64_t size);
static int QEMU_WARN_UNUSED_RESULT update_refcount(BlockDriverState *bs,
@@ -1795,25 +1794,11 @@ int qcow2_pre_write_overlap_check(BlockDriverState *bs, int ign, int64_t offset,
return ret;
} else if (ret > 0) {
int metadata_ol_bitnr = ffs(ret) - 1;
- char *message;
- QObject *data;
-
assert(metadata_ol_bitnr < QCOW2_OL_MAX_BITNR);
- fprintf(stderr, "qcow2: Preventing invalid write on metadata (overlaps "
- "with %s); image marked as corrupt.\n",
- metadata_ol_names[metadata_ol_bitnr]);
- message = g_strdup_printf("Prevented %s overwrite",
- metadata_ol_names[metadata_ol_bitnr]);
- data = qobject_from_jsonf("{ 'device': %s, 'msg': %s, 'offset': %"
- PRId64 ", 'size': %" PRId64 ", 'fatal': true }",
- bs->device_name, message, offset, size);
- monitor_protocol_event(QEVENT_BLOCK_IMAGE_CORRUPTED, data);
- g_free(message);
- qobject_decref(data);
-
- qcow2_mark_corrupt(bs);
- bs->drv = NULL; /* make BDS unusable */
+ qcow2_signal_corruption(bs, true, offset, size, "Preventing invalid "
+ "write on metadata (overlaps with %s)",
+ metadata_ol_names[metadata_ol_bitnr]);
return -EIO;
}
diff --git a/tests/qemu-iotests/060.out b/tests/qemu-iotests/060.out
index c27c952..30806da 100644
--- a/tests/qemu-iotests/060.out
+++ b/tests/qemu-iotests/060.out
@@ -8,7 +8,7 @@ ERROR cluster 3 refcount=1 reference=3
1 errors were found on the image.
Data may be corrupted, or further writes to the image may corrupt it.
incompatible_features 0x0
-qcow2: Preventing invalid write on metadata (overlaps with active L1 table); image marked as corrupt.
+qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with active L1 table); further corruption events will be suppressed
write failed: Input/output error
incompatible_features 0x2
qemu-io: can't open device TEST_DIR/t.IMGFMT: IMGFMT: Image is corrupt; cannot be opened read/write
@@ -24,7 +24,7 @@ ERROR cluster 2 refcount=1 reference=2
2 errors were found on the image.
Data may be corrupted, or further writes to the image may corrupt it.
incompatible_features 0x0
-qcow2: Preventing invalid write on metadata (overlaps with refcount block); image marked as corrupt.
+qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with refcount block); further corruption events will be suppressed
write failed: Input/output error
incompatible_features 0x2
Repairing refcount block 0 refcount=2
@@ -56,7 +56,7 @@ Data may be corrupted, or further writes to the image may corrupt it.
1 leaked clusters were found on the image.
This means waste of disk space, but no harm to data.
incompatible_features 0x0
-qcow2: Preventing invalid write on metadata (overlaps with inactive L2 table); image marked as corrupt.
+qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with inactive L2 table); further corruption events will be suppressed
write failed: Input/output error
incompatible_features 0x2
Repairing cluster 4 refcount=1 reference=2
@@ -88,7 +88,7 @@ wrote 65536/65536 bytes at offset 536870912
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
discard 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-qcow2: Preventing invalid write on metadata (overlaps with active L2 table); image marked as corrupt.
+qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with active L2 table); further corruption events will be suppressed
blkdebug: Suspended request '0'
write failed: Input/output error
blkdebug: Resuming request '0'
@@ -99,6 +99,6 @@ aio_write failed: No medium found
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
wrote 65536/65536 bytes at offset 0
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
-qcow2: Preventing invalid write on metadata (overlaps with qcow2_header); image marked as corrupt.
+qcow2: Marking image as corrupt: Preventing invalid write on metadata (overlaps with qcow2_header); further corruption events will be suppressed
write failed: Input/output error
*** done
--
1.8.3.1