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[Qemu-devel] [PATCH 1/4] qcow2: Add qcow2_signal_corruption()
From: |
Max Reitz |
Subject: |
[Qemu-devel] [PATCH 1/4] qcow2: Add qcow2_signal_corruption() |
Date: |
Sat, 16 Aug 2014 23:16:51 +0200 |
Add a helper function for easily marking an image corrupt while
outputting an informative message to stderr and via QAPI.
Signed-off-by: Max Reitz <address@hidden>
---
block/qcow2.c | 28 ++++++++++++++++++++++++++++
block/qcow2.h | 4 ++++
2 files changed, 32 insertions(+)
diff --git a/block/qcow2.c b/block/qcow2.c
index 435e0e1..ef2c931 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -30,6 +30,8 @@
#include "qemu/error-report.h"
#include "qapi/qmp/qerror.h"
#include "qapi/qmp/qbool.h"
+#include "qapi/qmp/types.h"
+#include "qapi-event.h"
#include "trace.h"
#include "qemu/option_int.h"
@@ -2378,6 +2380,32 @@ static int qcow2_amend_options(BlockDriverState *bs,
QemuOpts *opts)
return 0;
}
+void qcow2_signal_corruption(BlockDriverState *bs, int64_t offset, int64_t
size,
+ const char *message_format, ...)
+{
+ char *message;
+ va_list ap;
+
+ va_start(ap, message_format);
+ message = g_strdup_vprintf(message_format, ap);
+ va_end(ap);
+
+ if (bs->read_only) {
+ fprintf(stderr, "qcow2: Image is corrupt: %s\n", message);
+ } else {
+ fprintf(stderr, "qcow2: Marking image as corrupt: %s\n", message);
+ qapi_event_send_block_image_corrupted(bdrv_get_device_name(bs),
message,
+ offset >= 0, offset,
+ size >= 0, size, &error_abort);
+ }
+ g_free(message);
+
+ if (!bs->read_only) {
+ qcow2_mark_corrupt(bs);
+ bs->drv = NULL; /* make BDS unusable */
+ }
+}
+
static QemuOptsList qcow2_create_opts = {
.name = "qcow2-create-opts",
.head = QTAILQ_HEAD_INITIALIZER(qcow2_create_opts.head),
diff --git a/block/qcow2.h b/block/qcow2.h
index b49424b..f66238e 100644
--- a/block/qcow2.h
+++ b/block/qcow2.h
@@ -468,6 +468,10 @@ int qcow2_mark_corrupt(BlockDriverState *bs);
int qcow2_mark_consistent(BlockDriverState *bs);
int qcow2_update_header(BlockDriverState *bs);
+void qcow2_signal_corruption(BlockDriverState *bs, int64_t offset, int64_t
size,
+ const char *message_format, ...)
+ GCC_FMT_ATTR(4, 5);
+
/* qcow2-refcount.c functions */
int qcow2_refcount_init(BlockDriverState *bs);
void qcow2_refcount_close(BlockDriverState *bs);
--
2.0.4
[Qemu-devel] [PATCH 3/4] iotests: Fix output of 060, Max Reitz, 2014/08/16