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qemu: Use qemuBuildChrChardevCommand for vhost-user disk backend

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Now that the API for qemuBuildChrChardevCommand is sane enough, we can
use it to centralize formatting of '-chardev' generally.

For virtiofs we don't have a centrally stored chardev source so we
allocate one inline for temporary use.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Peter Krempa 2021-11-04 17:12:13 +01:00
parent 5f2cc74257
commit fd4aca6cf5
3 changed files with 4 additions and 16 deletions
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1
src/qemu/qemu_block.c
View File

@ -1655,7 +1655,6 @@ qemuBlockStorageSourceAttachDataFree(qemuBlockStorageSourceAttachData *data)
g_free(data->driveCmd);
g_free(data->driveAlias);
g_free(data->chardevAlias);
g_free(data->chardevCmd);
g_free(data);
}

1
src/qemu/qemu_block.h
View File

@ -99,7 +99,6 @@ struct qemuBlockStorageSourceAttachData {
virDomainChrSourceDef *chardevDef;
char *chardevAlias;
char *chardevCmd;
bool chardevAdded;
virJSONValue *authsecretProps;

18
src/qemu/qemu_command.c
View File

@ -2591,8 +2591,10 @@ qemuBuildBlockStorageSourceAttachDataCommandline(virCommand *cmd,
if (data->driveCmd)
virCommandAddArgList(cmd, "-drive", data->driveCmd, NULL);
if (data->chardevCmd)
virCommandAddArgList(cmd, "-chardev", data->chardevCmd, NULL);
if (data->chardevDef) {
if (qemuBuildChardevCommand(cmd, data->chardevDef, data->chardevAlias, qemuCaps) < 0)
return -1;
}
if (data->storageProps) {
if (!(tmp = virJSONValueToString(data->storageProps, false)))
@ -10959,24 +10961,12 @@ static qemuBlockStorageSourceAttachData *
qemuBuildStorageSourceAttachPrepareChardev(virDomainDiskDef *disk)
{
g_autoptr(qemuBlockStorageSourceAttachData) data = NULL;
g_auto(virBuffer) chardev = VIR_BUFFER_INITIALIZER;
data = g_new0(qemuBlockStorageSourceAttachData, 1);
data->chardevDef = disk->src->vhostuser;
data->chardevAlias = qemuDomainGetVhostUserChrAlias(disk->info.alias);
virBufferAddLit(&chardev, "socket");
virBufferAsprintf(&chardev, ",id=%s", data->chardevAlias);
virBufferAddLit(&chardev, ",path=");
virQEMUBuildBufferEscapeComma(&chardev, disk->src->vhostuser->data.nix.path);
qemuBuildChrChardevReconnectStr(&chardev,
&disk->src->vhostuser->data.nix.reconnect);
if (!(data->chardevCmd = virBufferContentAndReset(&chardev)))
return NULL;
return g_steal_pointer(&data);
}