[libvirt] [PATCH 6/6] virsh: Add group name to blkdeviotune output

https://bugzilla.redhat.com/show_bug.cgi?id=1336564 Add the ability to set/display the group_name for block device iotune Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; --- tools/virsh-domain.c | 17 +++++++++++++++++ tools/virsh.pod | 5 ++++- 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/tools/virsh-domain.c b/tools/virsh-domain.c index 184f64d..9451218 100644 --- a/tools/virsh-domain.c +++ b/tools/virsh-domain.c @@ -1263,6 +1263,10 @@ static const vshCmdOptDef opts_blkdeviotune[] = { .type = VSH_OT_INT, .help = N_("I/O size in bytes") }, + {.name = "group_name", + .type = VSH_OT_STRING, + .help = N_("group name to share I/O quota between multiple drives") + }, {.name = "total_bytes_sec_max_length", .type = VSH_OT_ALIAS, .help = "total-bytes-sec-max-length" @@ -1322,6 +1326,7 @@ cmdBlkdeviotune(vshControl *ctl, const vshCmd *cmd) { virDomainPtr dom = NULL; const char *name, *disk; + const char *group_name = NULL; unsigned long long value; int nparams = 0; int maxparams = 0; @@ -1393,6 +1398,18 @@ cmdBlkdeviotune(vshControl *ctl, const vshCmd *cmd) VSH_ADD_IOTUNE(write-iops-sec-max-length, WRITE_IOPS_SEC_MAX_LENGTH); #undef VSH_ADD_IOTUNE + rv = vshCommandOptStringQuiet(ctl, cmd, "group_name", &group_name); + if (rv < 0) { + vshError(ctl, "%s", _("Unable to parse group parameter")); + goto cleanup; + } else if (rv > 0) { + if (virTypedParamsAddString(&params, &nparams, &maxparams, + VIR_DOMAIN_BLOCK_IOTUNE_GROUP_NAME, + group_name) < 0) + goto save_error; + } + + if (nparams == 0) { if (virDomainGetBlockIoTune(dom, NULL, NULL, &nparams, flags) != 0) { vshError(ctl, "%s", diff --git a/tools/virsh.pod b/tools/virsh.pod index f278fec..e98cd0f 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -1139,7 +1139,7 @@ command. [I<read-bytes-sec-max-length>] [I<write-bytes-sec-max-length>]] [[I<total-iops-sec-max-length>] | [I<read-iops-sec-max-length>] [I<write-iops-sec-max-length>]] -[I<size-iops-sec>] +[I<size-iops-sec>] [I<group_name>] Set or query the block disk io parameters for a block device of I<domain>. I<device> specifies a unique target name (<target dev='name'/>) or source @@ -1179,6 +1179,9 @@ read I/O operations limit. I<--write-iops-sec-max-length> specifies duration in seconds to allow maximum write I/O operations limit. I<--size-iops-sec> specifies size I/O operations limit per second. +I<--group_name> specifies group name to share I/O quota between multiple drives. +For a qemu domain, if no name is provided, then the default is to have a single +group for each I<device>. Older versions of virsh only accepted these options with underscore instead of dash, as in I<--total_bytes_sec>. -- 2.7.4