Commit 2582bfed authored by Luiz Capitulino's avatar Luiz Capitulino Committed by Anthony Liguori

block: BLOCK_IO_ERROR QMP event

This commit introduces the bdrv_mon_event() function, which
should be called by block subsystems (eg. IDE) when a I/O
error occurs, so that an QMP event is emitted.

The following information is currently provided in the event:

- device name
- operation (ie. "read" or "write")
- action taken (eg. "stop")

Event example:

{ "event": "BLOCK_IO_ERROR",
    "data": { "device": "ide0-hd1",
              "operation": "write",
              "action": "stop" },
    "timestamp": { "seconds": 1265044230, "microseconds": 450486 } }
Signed-off-by: default avatarLuiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: default avatarAnthony Liguori <aliguori@us.ibm.com>
parent aa1db6ed
......@@ -1170,6 +1170,35 @@ int bdrv_is_allocated(BlockDriverState *bs, int64_t sector_num, int nb_sectors,
return bs->drv->bdrv_is_allocated(bs, sector_num, nb_sectors, pnum);
}
void bdrv_mon_event(const BlockDriverState *bdrv,
BlockMonEventAction action, int is_read)
{
QObject *data;
const char *action_str;
switch (action) {
case BDRV_ACTION_REPORT:
action_str = "report";
break;
case BDRV_ACTION_IGNORE:
action_str = "ignore";
break;
case BDRV_ACTION_STOP:
action_str = "stop";
break;
default:
abort();
}
data = qobject_from_jsonf("{ 'device': %s, 'action': %s, 'operation': %s }",
bdrv->device_name,
action_str,
is_read ? "read" : "write");
monitor_protocol_event(QEVENT_BLOCK_IO_ERROR, data);
qobject_decref(data);
}
static void bdrv_print_dict(QObject *obj, void *opaque)
{
QDict *bs_dict;
......
......@@ -44,6 +44,12 @@ typedef struct QEMUSnapshotInfo {
#define BDRV_SECTOR_SIZE (1 << BDRV_SECTOR_BITS)
#define BDRV_SECTOR_MASK ~(BDRV_SECTOR_SIZE - 1);
typedef enum {
BDRV_ACTION_REPORT, BDRV_ACTION_IGNORE, BDRV_ACTION_STOP
} BlockMonEventAction;
void bdrv_mon_event(const BlockDriverState *bdrv,
BlockMonEventAction action, int is_read);
void bdrv_info_print(Monitor *mon, const QObject *data);
void bdrv_info(Monitor *mon, QObject **ret_data);
void bdrv_stats_print(Monitor *mon, const QObject *data);
......
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment