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block/hmp: Allow info = NULL in print_block_info() 

This allows printing infos of BlockDriverStates that aren't at the root
of the graph (and logically implementing a BlockBackend).

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Kevin Wolf 2014-09-15 12:12:52 +02:00
parent 289b276c69
commit 8d6adccda2
1 changed files with 25 additions and 9 deletions
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16
hmp.c
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@ -295,7 +295,21 @@ static void print_block_info(Monitor *mon, BlockInfo *info,
{
ImageInfo *image_info;
assert(!info || !info->has_inserted || info->inserted == inserted);
if (info) {
monitor_printf(mon, "%s", info->device);
if (inserted && inserted->has_node_name) {
monitor_printf(mon, " (%s)", inserted->node_name);
}
} else {
assert(inserted);
monitor_printf(mon, "%s",
inserted->has_node_name
? inserted->node_name
: "<anonymous>");
}
if (inserted) {
monitor_printf(mon, ": %s (%s%s%s)\n",
inserted->file,
@ -306,6 +320,7 @@ static void print_block_info(Monitor *mon, BlockInfo *info,
monitor_printf(mon, ": [not inserted]\n");
}
if (info) {
if (info->has_io_status && info->io_status != BLOCK_DEVICE_IO_STATUS_OK) {
monitor_printf(mon, " I/O status: %s\n",
BlockDeviceIoStatus_lookup[info->io_status]);
@ -316,6 +331,7 @@ static void print_block_info(Monitor *mon, BlockInfo *info,
info->locked ? "" : "not ",
info->tray_open ? "open" : "closed");
}
}
if (!inserted) {