diff mbox

[v4,3/4] qmp: refactor duplicate code

Message ID 1494405683-20877-4-git-send-email-pradeep.jagadeesh@huawei.com
State New
Headers show

Commit Message

Pradeep Jagadeesh May 10, 2017, 8:41 a.m. UTC
This patch factor out the duplicate qmp throttle interface code
that was present in both block and fsdev device files.

Signed-off-by: Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com>
---
 blockdev.c                      | 53 +++-------------------------------------
 hmp.c                           | 21 +++++++++++-----
 include/qemu/throttle-options.h |  2 ++
 util/throttle-options.c         | 54 +++++++++++++++++++++++++++++++++++++++++
 4 files changed, 74 insertions(+), 56 deletions(-)

Comments

Eric Blake May 10, 2017, 7:56 p.m. UTC | #1
On 05/10/2017 03:41 AM, Pradeep Jagadeesh wrote:
> This patch factor out the duplicate qmp throttle interface code
> that was present in both block and fsdev device files.
> 
> Signed-off-by: Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com>
> ---
>  blockdev.c                      | 53 +++-------------------------------------
>  hmp.c                           | 21 +++++++++++-----
>  include/qemu/throttle-options.h |  2 ++
>  util/throttle-options.c         | 54 +++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 74 insertions(+), 56 deletions(-)
> 

> +++ b/include/qemu/throttle-options.h
> @@ -94,4 +94,6 @@
>  
>  void parse_io_throttle_options(ThrottleConfig *, QemuOpts *);
>  
> +void qmp_set_io_throttle(ThrottleConfig *, IOThrottle *);

I don't think this is the right name for this function.  You are not
adding a new QMP command (you didn't modify a .json file to add
'set-io-throttle').  As mentioned in patch 1/4, you can probably reuse
the existing util/throttle.c instead of throttle-options.c, and name
this something starting with throttle_ rather than with qmp_.
Greg Kurz May 11, 2017, 7:50 a.m. UTC | #2
On Wed, 10 May 2017 04:41:22 -0400
Pradeep Jagadeesh <pradeepkiruvale@gmail.com> wrote:

> This patch factor out the duplicate qmp throttle interface code
> that was present in both block and fsdev device files.
> 

There isn't any duplicated code at this stage since you have changed the
patch ordering.

Also, this patch is factoring out several things:
- factoring code out of qmp_block_set_io_throttle()
- factoring code out of hmp_block_set_io_throttle()

So I'm not sure the patch title is quite right either.

This seems to be the same in patch 4: it only mentions QMP even though
it adds QMP and HMP interfaces. Maybe you should change this part of
the series.

A patch to introduce the full QMP interface, including the associated
code refactoring (whose need would then be obvious). And a similar patch
for the HMP interface.

> Signed-off-by: Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com>
> ---
>  blockdev.c                      | 53 +++-------------------------------------
>  hmp.c                           | 21 +++++++++++-----
>  include/qemu/throttle-options.h |  2 ++
>  util/throttle-options.c         | 54 +++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 74 insertions(+), 56 deletions(-)
> 
> diff --git a/blockdev.c b/blockdev.c
> index a0eb2ed..a55f6be 100644
> --- a/blockdev.c
> +++ b/blockdev.c
> @@ -2593,6 +2593,7 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp)
>      BlockDriverState *bs;
>      BlockBackend *blk;
>      AioContext *aio_context;
> +    IOThrottle *iothrottle;
>  
>      blk = qmp_get_blk(arg->has_device ? arg->device : NULL,
>                        arg->has_id ? arg->id : NULL,
> @@ -2610,56 +2611,8 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp)
>          goto out;
>      }
>  
> -    throttle_config_init(&cfg);
> -    cfg.buckets[THROTTLE_BPS_TOTAL].avg = arg->bps;
> -    cfg.buckets[THROTTLE_BPS_READ].avg  = arg->bps_rd;
> -    cfg.buckets[THROTTLE_BPS_WRITE].avg = arg->bps_wr;
> -
> -    cfg.buckets[THROTTLE_OPS_TOTAL].avg = arg->iops;
> -    cfg.buckets[THROTTLE_OPS_READ].avg  = arg->iops_rd;
> -    cfg.buckets[THROTTLE_OPS_WRITE].avg = arg->iops_wr;
> -
> -    if (arg->has_bps_max) {
> -        cfg.buckets[THROTTLE_BPS_TOTAL].max = arg->bps_max;
> -    }
> -    if (arg->has_bps_rd_max) {
> -        cfg.buckets[THROTTLE_BPS_READ].max = arg->bps_rd_max;
> -    }
> -    if (arg->has_bps_wr_max) {
> -        cfg.buckets[THROTTLE_BPS_WRITE].max = arg->bps_wr_max;
> -    }
> -    if (arg->has_iops_max) {
> -        cfg.buckets[THROTTLE_OPS_TOTAL].max = arg->iops_max;
> -    }
> -    if (arg->has_iops_rd_max) {
> -        cfg.buckets[THROTTLE_OPS_READ].max = arg->iops_rd_max;
> -    }
> -    if (arg->has_iops_wr_max) {
> -        cfg.buckets[THROTTLE_OPS_WRITE].max = arg->iops_wr_max;
> -    }
> -
> -    if (arg->has_bps_max_length) {
> -        cfg.buckets[THROTTLE_BPS_TOTAL].burst_length = arg->bps_max_length;
> -    }
> -    if (arg->has_bps_rd_max_length) {
> -        cfg.buckets[THROTTLE_BPS_READ].burst_length = arg->bps_rd_max_length;
> -    }
> -    if (arg->has_bps_wr_max_length) {
> -        cfg.buckets[THROTTLE_BPS_WRITE].burst_length = arg->bps_wr_max_length;
> -    }
> -    if (arg->has_iops_max_length) {
> -        cfg.buckets[THROTTLE_OPS_TOTAL].burst_length = arg->iops_max_length;
> -    }
> -    if (arg->has_iops_rd_max_length) {
> -        cfg.buckets[THROTTLE_OPS_READ].burst_length = arg->iops_rd_max_length;
> -    }
> -    if (arg->has_iops_wr_max_length) {
> -        cfg.buckets[THROTTLE_OPS_WRITE].burst_length = arg->iops_wr_max_length;
> -    }
> -
> -    if (arg->has_iops_size) {
> -        cfg.op_size = arg->iops_size;
> -    }
> +    iothrottle = qapi_BlockIOThrottle_base(arg);
> +    qmp_set_io_throttle(&cfg, iothrottle);
>  
>      if (!throttle_is_valid(&cfg, errp)) {
>          goto out;
> diff --git a/hmp.c b/hmp.c
> index ab407d6..9660373 100644
> --- a/hmp.c
> +++ b/hmp.c
> @@ -1552,20 +1552,29 @@ void hmp_change(Monitor *mon, const QDict *qdict)
>      hmp_handle_error(mon, &err);
>  }
>  
> +static void hmp_initialize_io_throttle(IOThrottle *iot, const QDict *qdict)
> +{
> +    iot->has_id = true;
> +    iot->id = (char *) qdict_get_str(qdict, "id");
> +    iot->bps = qdict_get_int(qdict, "bps");
> +    iot->bps_rd = qdict_get_int(qdict, "bps_rd");
> +    iot->bps_wr = qdict_get_int(qdict, "bps_wr");
> +    iot->iops = qdict_get_int(qdict, "iops");
> +    iot->iops_rd = qdict_get_int(qdict, "iops_rd");
> +    iot->iops_wr = qdict_get_int(qdict, "iops_wr");
> +}
> +
>  void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
>  {
>      Error *err = NULL;
> +    IOThrottle *iothrottle;
>      BlockIOThrottle throttle = {
>          .has_device = true,
>          .device = (char *) qdict_get_str(qdict, "device"),
> -        .bps = qdict_get_int(qdict, "bps"),
> -        .bps_rd = qdict_get_int(qdict, "bps_rd"),
> -        .bps_wr = qdict_get_int(qdict, "bps_wr"),
> -        .iops = qdict_get_int(qdict, "iops"),
> -        .iops_rd = qdict_get_int(qdict, "iops_rd"),
> -        .iops_wr = qdict_get_int(qdict, "iops_wr"),
>      };
>  
> +    iothrottle = qapi_BlockIOThrottle_base(&throttle);
> +    hmp_initialize_io_throttle(iothrottle, qdict);
>      qmp_block_set_io_throttle(&throttle, &err);
>      hmp_handle_error(mon, &err);
>  }
> diff --git a/include/qemu/throttle-options.h b/include/qemu/throttle-options.h
> index 9b68eb8..ccf10cc 100644
> --- a/include/qemu/throttle-options.h
> +++ b/include/qemu/throttle-options.h
> @@ -94,4 +94,6 @@
>  
>  void parse_io_throttle_options(ThrottleConfig *, QemuOpts *);
>  
> +void qmp_set_io_throttle(ThrottleConfig *, IOThrottle *);
> +
>  #endif
> diff --git a/util/throttle-options.c b/util/throttle-options.c
> index 02b26b8..ded57bc 100644
> --- a/util/throttle-options.c
> +++ b/util/throttle-options.c
> @@ -49,3 +49,57 @@ void parse_io_throttle_options(ThrottleConfig *throttle_cfg, QemuOpts *opts)
>          qemu_opt_get_number(opts, "throttling.iops-size", 0);
>  
>  }
> +
> +void qmp_set_io_throttle(ThrottleConfig *cfg, IOThrottle *arg)
> +{
> +    throttle_config_init(cfg);
> +    cfg->buckets[THROTTLE_BPS_TOTAL].avg = arg->bps;
> +    cfg->buckets[THROTTLE_BPS_READ].avg  = arg->bps_rd;
> +    cfg->buckets[THROTTLE_BPS_WRITE].avg = arg->bps_wr;
> +
> +    cfg->buckets[THROTTLE_OPS_TOTAL].avg = arg->iops;
> +    cfg->buckets[THROTTLE_OPS_READ].avg  = arg->iops_rd;
> +    cfg->buckets[THROTTLE_OPS_WRITE].avg = arg->iops_wr;
> +
> +    if (arg->has_bps_max) {
> +        cfg->buckets[THROTTLE_BPS_TOTAL].max = arg->bps_max;
> +    }
> +    if (arg->has_bps_rd_max) {
> +        cfg->buckets[THROTTLE_BPS_READ].max = arg->bps_rd_max;
> +    }
> +    if (arg->has_bps_wr_max) {
> +        cfg->buckets[THROTTLE_BPS_WRITE].max = arg->bps_wr_max;
> +    }
> +    if (arg->has_iops_max) {
> +        cfg->buckets[THROTTLE_OPS_TOTAL].max = arg->iops_max;
> +    }
> +    if (arg->has_iops_rd_max) {
> +        cfg->buckets[THROTTLE_OPS_READ].max = arg->iops_rd_max;
> +    }
> +    if (arg->has_iops_wr_max) {
> +        cfg->buckets[THROTTLE_OPS_WRITE].max = arg->iops_wr_max;
> +    }
> +
> +    if (arg->has_bps_max_length) {
> +        cfg->buckets[THROTTLE_BPS_TOTAL].burst_length = arg->bps_max_length;
> +    }
> +    if (arg->has_bps_rd_max_length) {
> +        cfg->buckets[THROTTLE_BPS_READ].burst_length = arg->bps_rd_max_length;
> +    }
> +    if (arg->has_bps_wr_max_length) {
> +        cfg->buckets[THROTTLE_BPS_WRITE].burst_length = arg->bps_wr_max_length;
> +    }
> +    if (arg->has_iops_max_length) {
> +        cfg->buckets[THROTTLE_OPS_TOTAL].burst_length = arg->iops_max_length;
> +    }
> +    if (arg->has_iops_rd_max_length) {
> +        cfg->buckets[THROTTLE_OPS_READ].burst_length = arg->iops_rd_max_length;
> +    }
> +    if (arg->has_iops_wr_max_length) {
> +        cfg->buckets[THROTTLE_OPS_WRITE].burst_length = arg->iops_wr_max_length;
> +    }
> +
> +    if (arg->has_iops_size) {
> +        cfg->op_size = arg->iops_size;
> +    }
> +}
Pradeep Jagadeesh May 11, 2017, 4:14 p.m. UTC | #3
On 5/10/2017 9:56 PM, Eric Blake wrote:
> On 05/10/2017 03:41 AM, Pradeep Jagadeesh wrote:
>> This patch factor out the duplicate qmp throttle interface code
>> that was present in both block and fsdev device files.
>>
>> Signed-off-by: Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com>
>> ---
>>  blockdev.c                      | 53 +++-------------------------------------
>>  hmp.c                           | 21 +++++++++++-----
>>  include/qemu/throttle-options.h |  2 ++
>>  util/throttle-options.c         | 54 +++++++++++++++++++++++++++++++++++++++++
>>  4 files changed, 74 insertions(+), 56 deletions(-)
>>
>
>> +++ b/include/qemu/throttle-options.h
>> @@ -94,4 +94,6 @@
>>
>>  void parse_io_throttle_options(ThrottleConfig *, QemuOpts *);
>>
>> +void qmp_set_io_throttle(ThrottleConfig *, IOThrottle *);
>
> I don't think this is the right name for this function.  You are not
> adding a new QMP command (you didn't modify a .json file to add
> 'set-io-throttle').  As mentioned in patch 1/4, you can probably reuse
> the existing util/throttle.c instead of throttle-options.c, and name
> this something starting with throttle_ rather than with qmp_.
>
OK

-Pradeep
>
Pradeep Jagadeesh May 12, 2017, 8:03 a.m. UTC | #4
On 5/11/2017 9:50 AM, Greg Kurz wrote:
> On Wed, 10 May 2017 04:41:22 -0400
> Pradeep Jagadeesh <pradeepkiruvale@gmail.com> wrote:
>
>> This patch factor out the duplicate qmp throttle interface code
>> that was present in both block and fsdev device files.
>>
>
> There isn't any duplicated code at this stage since you have changed the
> patch ordering.
>
> Also, this patch is factoring out several things:
> - factoring code out of qmp_block_set_io_throttle()
> - factoring code out of hmp_block_set_io_throttle()
> So I'm not sure the patch title is quite right either.
>
> This seems to be the same in patch 4: it only mentions QMP even though
> it adds QMP and HMP interfaces. Maybe you should change this part of
> the series.
>
> A patch to introduce the full QMP interface, including the associated
> code refactoring (whose need would then be obvious). And a similar patch
> for the HMP interface.
But without hmp functionalities the qmp does not work. So, I just kept 
both together.
>
>> Signed-off-by: Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com>
>> ---
>>  blockdev.c                      | 53 +++-------------------------------------
>>  hmp.c                           | 21 +++++++++++-----
>>  include/qemu/throttle-options.h |  2 ++
>>  util/throttle-options.c         | 54 +++++++++++++++++++++++++++++++++++++++++
>>  4 files changed, 74 insertions(+), 56 deletions(-)
>>
>> diff --git a/blockdev.c b/blockdev.c
>> index a0eb2ed..a55f6be 100644
>> --- a/blockdev.c
>> +++ b/blockdev.c
>> @@ -2593,6 +2593,7 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp)
>>      BlockDriverState *bs;
>>      BlockBackend *blk;
>>      AioContext *aio_context;
>> +    IOThrottle *iothrottle;
>>
>>      blk = qmp_get_blk(arg->has_device ? arg->device : NULL,
>>                        arg->has_id ? arg->id : NULL,
>> @@ -2610,56 +2611,8 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp)
>>          goto out;
>>      }
>>
>> -    throttle_config_init(&cfg);
>> -    cfg.buckets[THROTTLE_BPS_TOTAL].avg = arg->bps;
>> -    cfg.buckets[THROTTLE_BPS_READ].avg  = arg->bps_rd;
>> -    cfg.buckets[THROTTLE_BPS_WRITE].avg = arg->bps_wr;
>> -
>> -    cfg.buckets[THROTTLE_OPS_TOTAL].avg = arg->iops;
>> -    cfg.buckets[THROTTLE_OPS_READ].avg  = arg->iops_rd;
>> -    cfg.buckets[THROTTLE_OPS_WRITE].avg = arg->iops_wr;
>> -
>> -    if (arg->has_bps_max) {
>> -        cfg.buckets[THROTTLE_BPS_TOTAL].max = arg->bps_max;
>> -    }
>> -    if (arg->has_bps_rd_max) {
>> -        cfg.buckets[THROTTLE_BPS_READ].max = arg->bps_rd_max;
>> -    }
>> -    if (arg->has_bps_wr_max) {
>> -        cfg.buckets[THROTTLE_BPS_WRITE].max = arg->bps_wr_max;
>> -    }
>> -    if (arg->has_iops_max) {
>> -        cfg.buckets[THROTTLE_OPS_TOTAL].max = arg->iops_max;
>> -    }
>> -    if (arg->has_iops_rd_max) {
>> -        cfg.buckets[THROTTLE_OPS_READ].max = arg->iops_rd_max;
>> -    }
>> -    if (arg->has_iops_wr_max) {
>> -        cfg.buckets[THROTTLE_OPS_WRITE].max = arg->iops_wr_max;
>> -    }
>> -
>> -    if (arg->has_bps_max_length) {
>> -        cfg.buckets[THROTTLE_BPS_TOTAL].burst_length = arg->bps_max_length;
>> -    }
>> -    if (arg->has_bps_rd_max_length) {
>> -        cfg.buckets[THROTTLE_BPS_READ].burst_length = arg->bps_rd_max_length;
>> -    }
>> -    if (arg->has_bps_wr_max_length) {
>> -        cfg.buckets[THROTTLE_BPS_WRITE].burst_length = arg->bps_wr_max_length;
>> -    }
>> -    if (arg->has_iops_max_length) {
>> -        cfg.buckets[THROTTLE_OPS_TOTAL].burst_length = arg->iops_max_length;
>> -    }
>> -    if (arg->has_iops_rd_max_length) {
>> -        cfg.buckets[THROTTLE_OPS_READ].burst_length = arg->iops_rd_max_length;
>> -    }
>> -    if (arg->has_iops_wr_max_length) {
>> -        cfg.buckets[THROTTLE_OPS_WRITE].burst_length = arg->iops_wr_max_length;
>> -    }
>> -
>> -    if (arg->has_iops_size) {
>> -        cfg.op_size = arg->iops_size;
>> -    }
>> +    iothrottle = qapi_BlockIOThrottle_base(arg);
>> +    qmp_set_io_throttle(&cfg, iothrottle);
>>
>>      if (!throttle_is_valid(&cfg, errp)) {
>>          goto out;
>> diff --git a/hmp.c b/hmp.c
>> index ab407d6..9660373 100644
>> --- a/hmp.c
>> +++ b/hmp.c
>> @@ -1552,20 +1552,29 @@ void hmp_change(Monitor *mon, const QDict *qdict)
>>      hmp_handle_error(mon, &err);
>>  }
>>
>> +static void hmp_initialize_io_throttle(IOThrottle *iot, const QDict *qdict)
>> +{
>> +    iot->has_id = true;
>> +    iot->id = (char *) qdict_get_str(qdict, "id");
>> +    iot->bps = qdict_get_int(qdict, "bps");
>> +    iot->bps_rd = qdict_get_int(qdict, "bps_rd");
>> +    iot->bps_wr = qdict_get_int(qdict, "bps_wr");
>> +    iot->iops = qdict_get_int(qdict, "iops");
>> +    iot->iops_rd = qdict_get_int(qdict, "iops_rd");
>> +    iot->iops_wr = qdict_get_int(qdict, "iops_wr");
>> +}
>> +
>>  void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
>>  {
>>      Error *err = NULL;
>> +    IOThrottle *iothrottle;
>>      BlockIOThrottle throttle = {
>>          .has_device = true,
>>          .device = (char *) qdict_get_str(qdict, "device"),
>> -        .bps = qdict_get_int(qdict, "bps"),
>> -        .bps_rd = qdict_get_int(qdict, "bps_rd"),
>> -        .bps_wr = qdict_get_int(qdict, "bps_wr"),
>> -        .iops = qdict_get_int(qdict, "iops"),
>> -        .iops_rd = qdict_get_int(qdict, "iops_rd"),
>> -        .iops_wr = qdict_get_int(qdict, "iops_wr"),
>>      };
>>
>> +    iothrottle = qapi_BlockIOThrottle_base(&throttle);
>> +    hmp_initialize_io_throttle(iothrottle, qdict);
>>      qmp_block_set_io_throttle(&throttle, &err);
>>      hmp_handle_error(mon, &err);
>>  }
>> diff --git a/include/qemu/throttle-options.h b/include/qemu/throttle-options.h
>> index 9b68eb8..ccf10cc 100644
>> --- a/include/qemu/throttle-options.h
>> +++ b/include/qemu/throttle-options.h
>> @@ -94,4 +94,6 @@
>>
>>  void parse_io_throttle_options(ThrottleConfig *, QemuOpts *);
>>
>> +void qmp_set_io_throttle(ThrottleConfig *, IOThrottle *);
>> +
>>  #endif
>> diff --git a/util/throttle-options.c b/util/throttle-options.c
>> index 02b26b8..ded57bc 100644
>> --- a/util/throttle-options.c
>> +++ b/util/throttle-options.c
>> @@ -49,3 +49,57 @@ void parse_io_throttle_options(ThrottleConfig *throttle_cfg, QemuOpts *opts)
>>          qemu_opt_get_number(opts, "throttling.iops-size", 0);
>>
>>  }
>> +
>> +void qmp_set_io_throttle(ThrottleConfig *cfg, IOThrottle *arg)
>> +{
>> +    throttle_config_init(cfg);
>> +    cfg->buckets[THROTTLE_BPS_TOTAL].avg = arg->bps;
>> +    cfg->buckets[THROTTLE_BPS_READ].avg  = arg->bps_rd;
>> +    cfg->buckets[THROTTLE_BPS_WRITE].avg = arg->bps_wr;
>> +
>> +    cfg->buckets[THROTTLE_OPS_TOTAL].avg = arg->iops;
>> +    cfg->buckets[THROTTLE_OPS_READ].avg  = arg->iops_rd;
>> +    cfg->buckets[THROTTLE_OPS_WRITE].avg = arg->iops_wr;
>> +
>> +    if (arg->has_bps_max) {
>> +        cfg->buckets[THROTTLE_BPS_TOTAL].max = arg->bps_max;
>> +    }
>> +    if (arg->has_bps_rd_max) {
>> +        cfg->buckets[THROTTLE_BPS_READ].max = arg->bps_rd_max;
>> +    }
>> +    if (arg->has_bps_wr_max) {
>> +        cfg->buckets[THROTTLE_BPS_WRITE].max = arg->bps_wr_max;
>> +    }
>> +    if (arg->has_iops_max) {
>> +        cfg->buckets[THROTTLE_OPS_TOTAL].max = arg->iops_max;
>> +    }
>> +    if (arg->has_iops_rd_max) {
>> +        cfg->buckets[THROTTLE_OPS_READ].max = arg->iops_rd_max;
>> +    }
>> +    if (arg->has_iops_wr_max) {
>> +        cfg->buckets[THROTTLE_OPS_WRITE].max = arg->iops_wr_max;
>> +    }
>> +
>> +    if (arg->has_bps_max_length) {
>> +        cfg->buckets[THROTTLE_BPS_TOTAL].burst_length = arg->bps_max_length;
>> +    }
>> +    if (arg->has_bps_rd_max_length) {
>> +        cfg->buckets[THROTTLE_BPS_READ].burst_length = arg->bps_rd_max_length;
>> +    }
>> +    if (arg->has_bps_wr_max_length) {
>> +        cfg->buckets[THROTTLE_BPS_WRITE].burst_length = arg->bps_wr_max_length;
>> +    }
>> +    if (arg->has_iops_max_length) {
>> +        cfg->buckets[THROTTLE_OPS_TOTAL].burst_length = arg->iops_max_length;
>> +    }
>> +    if (arg->has_iops_rd_max_length) {
>> +        cfg->buckets[THROTTLE_OPS_READ].burst_length = arg->iops_rd_max_length;
>> +    }
>> +    if (arg->has_iops_wr_max_length) {
>> +        cfg->buckets[THROTTLE_OPS_WRITE].burst_length = arg->iops_wr_max_length;
>> +    }
>> +
>> +    if (arg->has_iops_size) {
>> +        cfg->op_size = arg->iops_size;
>> +    }
>> +}
Greg Kurz June 8, 2017, 2:20 p.m. UTC | #5
On Fri, 12 May 2017 10:03:02 +0200
Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com> wrote:

> On 5/11/2017 9:50 AM, Greg Kurz wrote:
> > On Wed, 10 May 2017 04:41:22 -0400
> > Pradeep Jagadeesh <pradeepkiruvale@gmail.com> wrote:
> >  
> >> This patch factor out the duplicate qmp throttle interface code
> >> that was present in both block and fsdev device files.
> >>  
> >
> > There isn't any duplicated code at this stage since you have changed the
> > patch ordering.
> >
> > Also, this patch is factoring out several things:
> > - factoring code out of qmp_block_set_io_throttle()
> > - factoring code out of hmp_block_set_io_throttle()
> > So I'm not sure the patch title is quite right either.
> >
> > This seems to be the same in patch 4: it only mentions QMP even though
> > it adds QMP and HMP interfaces. Maybe you should change this part of
> > the series.
> >
> > A patch to introduce the full QMP interface, including the associated
> > code refactoring (whose need would then be obvious). And a similar patch
> > for the HMP interface.  
> But without hmp functionalities the qmp does not work. So, I just kept 
> both together.

This sounds weird... I would rather expect HMP to depend on QMP, not the
contrary.

Anyway, looking at this patch I still see two different things which
deserve their own patch and appropriate description.

> >  
> >> Signed-off-by: Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com>
> >> ---
> >>  blockdev.c                      | 53 +++-------------------------------------
> >>  hmp.c                           | 21 +++++++++++-----
> >>  include/qemu/throttle-options.h |  2 ++
> >>  util/throttle-options.c         | 54 +++++++++++++++++++++++++++++++++++++++++
> >>  4 files changed, 74 insertions(+), 56 deletions(-)
> >>
> >> diff --git a/blockdev.c b/blockdev.c
> >> index a0eb2ed..a55f6be 100644
> >> --- a/blockdev.c
> >> +++ b/blockdev.c
> >> @@ -2593,6 +2593,7 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp)
> >>      BlockDriverState *bs;
> >>      BlockBackend *blk;
> >>      AioContext *aio_context;
> >> +    IOThrottle *iothrottle;
> >>
> >>      blk = qmp_get_blk(arg->has_device ? arg->device : NULL,
> >>                        arg->has_id ? arg->id : NULL,
> >> @@ -2610,56 +2611,8 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp)
> >>          goto out;
> >>      }
> >>
> >> -    throttle_config_init(&cfg);
> >> -    cfg.buckets[THROTTLE_BPS_TOTAL].avg = arg->bps;
> >> -    cfg.buckets[THROTTLE_BPS_READ].avg  = arg->bps_rd;
> >> -    cfg.buckets[THROTTLE_BPS_WRITE].avg = arg->bps_wr;
> >> -
> >> -    cfg.buckets[THROTTLE_OPS_TOTAL].avg = arg->iops;
> >> -    cfg.buckets[THROTTLE_OPS_READ].avg  = arg->iops_rd;
> >> -    cfg.buckets[THROTTLE_OPS_WRITE].avg = arg->iops_wr;
> >> -
> >> -    if (arg->has_bps_max) {
> >> -        cfg.buckets[THROTTLE_BPS_TOTAL].max = arg->bps_max;
> >> -    }
> >> -    if (arg->has_bps_rd_max) {
> >> -        cfg.buckets[THROTTLE_BPS_READ].max = arg->bps_rd_max;
> >> -    }
> >> -    if (arg->has_bps_wr_max) {
> >> -        cfg.buckets[THROTTLE_BPS_WRITE].max = arg->bps_wr_max;
> >> -    }
> >> -    if (arg->has_iops_max) {
> >> -        cfg.buckets[THROTTLE_OPS_TOTAL].max = arg->iops_max;
> >> -    }
> >> -    if (arg->has_iops_rd_max) {
> >> -        cfg.buckets[THROTTLE_OPS_READ].max = arg->iops_rd_max;
> >> -    }
> >> -    if (arg->has_iops_wr_max) {
> >> -        cfg.buckets[THROTTLE_OPS_WRITE].max = arg->iops_wr_max;
> >> -    }
> >> -
> >> -    if (arg->has_bps_max_length) {
> >> -        cfg.buckets[THROTTLE_BPS_TOTAL].burst_length = arg->bps_max_length;
> >> -    }
> >> -    if (arg->has_bps_rd_max_length) {
> >> -        cfg.buckets[THROTTLE_BPS_READ].burst_length = arg->bps_rd_max_length;
> >> -    }
> >> -    if (arg->has_bps_wr_max_length) {
> >> -        cfg.buckets[THROTTLE_BPS_WRITE].burst_length = arg->bps_wr_max_length;
> >> -    }
> >> -    if (arg->has_iops_max_length) {
> >> -        cfg.buckets[THROTTLE_OPS_TOTAL].burst_length = arg->iops_max_length;
> >> -    }
> >> -    if (arg->has_iops_rd_max_length) {
> >> -        cfg.buckets[THROTTLE_OPS_READ].burst_length = arg->iops_rd_max_length;
> >> -    }
> >> -    if (arg->has_iops_wr_max_length) {
> >> -        cfg.buckets[THROTTLE_OPS_WRITE].burst_length = arg->iops_wr_max_length;
> >> -    }
> >> -
> >> -    if (arg->has_iops_size) {
> >> -        cfg.op_size = arg->iops_size;
> >> -    }
> >> +    iothrottle = qapi_BlockIOThrottle_base(arg);
> >> +    qmp_set_io_throttle(&cfg, iothrottle);
> >>
> >>      if (!throttle_is_valid(&cfg, errp)) {
> >>          goto out;
> >> diff --git a/hmp.c b/hmp.c
> >> index ab407d6..9660373 100644
> >> --- a/hmp.c
> >> +++ b/hmp.c
> >> @@ -1552,20 +1552,29 @@ void hmp_change(Monitor *mon, const QDict *qdict)
> >>      hmp_handle_error(mon, &err);
> >>  }
> >>
> >> +static void hmp_initialize_io_throttle(IOThrottle *iot, const QDict *qdict)
> >> +{
> >> +    iot->has_id = true;
> >> +    iot->id = (char *) qdict_get_str(qdict, "id");
> >> +    iot->bps = qdict_get_int(qdict, "bps");
> >> +    iot->bps_rd = qdict_get_int(qdict, "bps_rd");
> >> +    iot->bps_wr = qdict_get_int(qdict, "bps_wr");
> >> +    iot->iops = qdict_get_int(qdict, "iops");
> >> +    iot->iops_rd = qdict_get_int(qdict, "iops_rd");
> >> +    iot->iops_wr = qdict_get_int(qdict, "iops_wr");
> >> +}
> >> +
> >>  void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
> >>  {
> >>      Error *err = NULL;
> >> +    IOThrottle *iothrottle;
> >>      BlockIOThrottle throttle = {
> >>          .has_device = true,
> >>          .device = (char *) qdict_get_str(qdict, "device"),
> >> -        .bps = qdict_get_int(qdict, "bps"),
> >> -        .bps_rd = qdict_get_int(qdict, "bps_rd"),
> >> -        .bps_wr = qdict_get_int(qdict, "bps_wr"),
> >> -        .iops = qdict_get_int(qdict, "iops"),
> >> -        .iops_rd = qdict_get_int(qdict, "iops_rd"),
> >> -        .iops_wr = qdict_get_int(qdict, "iops_wr"),
> >>      };
> >>
> >> +    iothrottle = qapi_BlockIOThrottle_base(&throttle);
> >> +    hmp_initialize_io_throttle(iothrottle, qdict);
> >>      qmp_block_set_io_throttle(&throttle, &err);
> >>      hmp_handle_error(mon, &err);
> >>  }
> >> diff --git a/include/qemu/throttle-options.h b/include/qemu/throttle-options.h
> >> index 9b68eb8..ccf10cc 100644
> >> --- a/include/qemu/throttle-options.h
> >> +++ b/include/qemu/throttle-options.h
> >> @@ -94,4 +94,6 @@
> >>
> >>  void parse_io_throttle_options(ThrottleConfig *, QemuOpts *);
> >>
> >> +void qmp_set_io_throttle(ThrottleConfig *, IOThrottle *);
> >> +
> >>  #endif
> >> diff --git a/util/throttle-options.c b/util/throttle-options.c
> >> index 02b26b8..ded57bc 100644
> >> --- a/util/throttle-options.c
> >> +++ b/util/throttle-options.c
> >> @@ -49,3 +49,57 @@ void parse_io_throttle_options(ThrottleConfig *throttle_cfg, QemuOpts *opts)
> >>          qemu_opt_get_number(opts, "throttling.iops-size", 0);
> >>
> >>  }
> >> +
> >> +void qmp_set_io_throttle(ThrottleConfig *cfg, IOThrottle *arg)
> >> +{
> >> +    throttle_config_init(cfg);
> >> +    cfg->buckets[THROTTLE_BPS_TOTAL].avg = arg->bps;
> >> +    cfg->buckets[THROTTLE_BPS_READ].avg  = arg->bps_rd;
> >> +    cfg->buckets[THROTTLE_BPS_WRITE].avg = arg->bps_wr;
> >> +
> >> +    cfg->buckets[THROTTLE_OPS_TOTAL].avg = arg->iops;
> >> +    cfg->buckets[THROTTLE_OPS_READ].avg  = arg->iops_rd;
> >> +    cfg->buckets[THROTTLE_OPS_WRITE].avg = arg->iops_wr;
> >> +
> >> +    if (arg->has_bps_max) {
> >> +        cfg->buckets[THROTTLE_BPS_TOTAL].max = arg->bps_max;
> >> +    }
> >> +    if (arg->has_bps_rd_max) {
> >> +        cfg->buckets[THROTTLE_BPS_READ].max = arg->bps_rd_max;
> >> +    }
> >> +    if (arg->has_bps_wr_max) {
> >> +        cfg->buckets[THROTTLE_BPS_WRITE].max = arg->bps_wr_max;
> >> +    }
> >> +    if (arg->has_iops_max) {
> >> +        cfg->buckets[THROTTLE_OPS_TOTAL].max = arg->iops_max;
> >> +    }
> >> +    if (arg->has_iops_rd_max) {
> >> +        cfg->buckets[THROTTLE_OPS_READ].max = arg->iops_rd_max;
> >> +    }
> >> +    if (arg->has_iops_wr_max) {
> >> +        cfg->buckets[THROTTLE_OPS_WRITE].max = arg->iops_wr_max;
> >> +    }
> >> +
> >> +    if (arg->has_bps_max_length) {
> >> +        cfg->buckets[THROTTLE_BPS_TOTAL].burst_length = arg->bps_max_length;
> >> +    }
> >> +    if (arg->has_bps_rd_max_length) {
> >> +        cfg->buckets[THROTTLE_BPS_READ].burst_length = arg->bps_rd_max_length;
> >> +    }
> >> +    if (arg->has_bps_wr_max_length) {
> >> +        cfg->buckets[THROTTLE_BPS_WRITE].burst_length = arg->bps_wr_max_length;
> >> +    }
> >> +    if (arg->has_iops_max_length) {
> >> +        cfg->buckets[THROTTLE_OPS_TOTAL].burst_length = arg->iops_max_length;
> >> +    }
> >> +    if (arg->has_iops_rd_max_length) {
> >> +        cfg->buckets[THROTTLE_OPS_READ].burst_length = arg->iops_rd_max_length;
> >> +    }
> >> +    if (arg->has_iops_wr_max_length) {
> >> +        cfg->buckets[THROTTLE_OPS_WRITE].burst_length = arg->iops_wr_max_length;
> >> +    }
> >> +
> >> +    if (arg->has_iops_size) {
> >> +        cfg->op_size = arg->iops_size;
> >> +    }
> >> +}  
> 
>
Pradeep Jagadeesh June 9, 2017, 8:32 a.m. UTC | #6
On 6/8/2017 4:20 PM, Greg Kurz wrote:
> On Fri, 12 May 2017 10:03:02 +0200
> Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com> wrote:
>
>> On 5/11/2017 9:50 AM, Greg Kurz wrote:
>>> On Wed, 10 May 2017 04:41:22 -0400
>>> Pradeep Jagadeesh <pradeepkiruvale@gmail.com> wrote:
>>>
>>>> This patch factor out the duplicate qmp throttle interface code
>>>> that was present in both block and fsdev device files.
>>>>
>>>
>>> There isn't any duplicated code at this stage since you have changed the
>>> patch ordering.
>>>
>>> Also, this patch is factoring out several things:
>>> - factoring code out of qmp_block_set_io_throttle()
>>> - factoring code out of hmp_block_set_io_throttle()
>>> So I'm not sure the patch title is quite right either.
>>>
>>> This seems to be the same in patch 4: it only mentions QMP even though
>>> it adds QMP and HMP interfaces. Maybe you should change this part of
>>> the series.
>>>
>>> A patch to introduce the full QMP interface, including the associated
>>> code refactoring (whose need would then be obvious). And a similar patch
>>> for the HMP interface.
>> But without hmp functionalities the qmp does not work. So, I just kept
>> both together.
>
> This sounds weird... I would rather expect HMP to depend on QMP, not the
> contrary.
>
> Anyway, looking at this patch I still see two different things which
> deserve their own patch and appropriate description.

OK, I can create different patches.

Regards,
Pradeep

>
>>>
>>>> Signed-off-by: Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com>
>>>> ---
>>>>  blockdev.c                      | 53 +++-------------------------------------
>>>>  hmp.c                           | 21 +++++++++++-----
>>>>  include/qemu/throttle-options.h |  2 ++
>>>>  util/throttle-options.c         | 54 +++++++++++++++++++++++++++++++++++++++++
>>>>  4 files changed, 74 insertions(+), 56 deletions(-)
>>>>
>>>> diff --git a/blockdev.c b/blockdev.c
>>>> index a0eb2ed..a55f6be 100644
>>>> --- a/blockdev.c
>>>> +++ b/blockdev.c
>>>> @@ -2593,6 +2593,7 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp)
>>>>      BlockDriverState *bs;
>>>>      BlockBackend *blk;
>>>>      AioContext *aio_context;
>>>> +    IOThrottle *iothrottle;
>>>>
>>>>      blk = qmp_get_blk(arg->has_device ? arg->device : NULL,
>>>>                        arg->has_id ? arg->id : NULL,
>>>> @@ -2610,56 +2611,8 @@ void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp)
>>>>          goto out;
>>>>      }
>>>>
>>>> -    throttle_config_init(&cfg);
>>>> -    cfg.buckets[THROTTLE_BPS_TOTAL].avg = arg->bps;
>>>> -    cfg.buckets[THROTTLE_BPS_READ].avg  = arg->bps_rd;
>>>> -    cfg.buckets[THROTTLE_BPS_WRITE].avg = arg->bps_wr;
>>>> -
>>>> -    cfg.buckets[THROTTLE_OPS_TOTAL].avg = arg->iops;
>>>> -    cfg.buckets[THROTTLE_OPS_READ].avg  = arg->iops_rd;
>>>> -    cfg.buckets[THROTTLE_OPS_WRITE].avg = arg->iops_wr;
>>>> -
>>>> -    if (arg->has_bps_max) {
>>>> -        cfg.buckets[THROTTLE_BPS_TOTAL].max = arg->bps_max;
>>>> -    }
>>>> -    if (arg->has_bps_rd_max) {
>>>> -        cfg.buckets[THROTTLE_BPS_READ].max = arg->bps_rd_max;
>>>> -    }
>>>> -    if (arg->has_bps_wr_max) {
>>>> -        cfg.buckets[THROTTLE_BPS_WRITE].max = arg->bps_wr_max;
>>>> -    }
>>>> -    if (arg->has_iops_max) {
>>>> -        cfg.buckets[THROTTLE_OPS_TOTAL].max = arg->iops_max;
>>>> -    }
>>>> -    if (arg->has_iops_rd_max) {
>>>> -        cfg.buckets[THROTTLE_OPS_READ].max = arg->iops_rd_max;
>>>> -    }
>>>> -    if (arg->has_iops_wr_max) {
>>>> -        cfg.buckets[THROTTLE_OPS_WRITE].max = arg->iops_wr_max;
>>>> -    }
>>>> -
>>>> -    if (arg->has_bps_max_length) {
>>>> -        cfg.buckets[THROTTLE_BPS_TOTAL].burst_length = arg->bps_max_length;
>>>> -    }
>>>> -    if (arg->has_bps_rd_max_length) {
>>>> -        cfg.buckets[THROTTLE_BPS_READ].burst_length = arg->bps_rd_max_length;
>>>> -    }
>>>> -    if (arg->has_bps_wr_max_length) {
>>>> -        cfg.buckets[THROTTLE_BPS_WRITE].burst_length = arg->bps_wr_max_length;
>>>> -    }
>>>> -    if (arg->has_iops_max_length) {
>>>> -        cfg.buckets[THROTTLE_OPS_TOTAL].burst_length = arg->iops_max_length;
>>>> -    }
>>>> -    if (arg->has_iops_rd_max_length) {
>>>> -        cfg.buckets[THROTTLE_OPS_READ].burst_length = arg->iops_rd_max_length;
>>>> -    }
>>>> -    if (arg->has_iops_wr_max_length) {
>>>> -        cfg.buckets[THROTTLE_OPS_WRITE].burst_length = arg->iops_wr_max_length;
>>>> -    }
>>>> -
>>>> -    if (arg->has_iops_size) {
>>>> -        cfg.op_size = arg->iops_size;
>>>> -    }
>>>> +    iothrottle = qapi_BlockIOThrottle_base(arg);
>>>> +    qmp_set_io_throttle(&cfg, iothrottle);
>>>>
>>>>      if (!throttle_is_valid(&cfg, errp)) {
>>>>          goto out;
>>>> diff --git a/hmp.c b/hmp.c
>>>> index ab407d6..9660373 100644
>>>> --- a/hmp.c
>>>> +++ b/hmp.c
>>>> @@ -1552,20 +1552,29 @@ void hmp_change(Monitor *mon, const QDict *qdict)
>>>>      hmp_handle_error(mon, &err);
>>>>  }
>>>>
>>>> +static void hmp_initialize_io_throttle(IOThrottle *iot, const QDict *qdict)
>>>> +{
>>>> +    iot->has_id = true;
>>>> +    iot->id = (char *) qdict_get_str(qdict, "id");
>>>> +    iot->bps = qdict_get_int(qdict, "bps");
>>>> +    iot->bps_rd = qdict_get_int(qdict, "bps_rd");
>>>> +    iot->bps_wr = qdict_get_int(qdict, "bps_wr");
>>>> +    iot->iops = qdict_get_int(qdict, "iops");
>>>> +    iot->iops_rd = qdict_get_int(qdict, "iops_rd");
>>>> +    iot->iops_wr = qdict_get_int(qdict, "iops_wr");
>>>> +}
>>>> +
>>>>  void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
>>>>  {
>>>>      Error *err = NULL;
>>>> +    IOThrottle *iothrottle;
>>>>      BlockIOThrottle throttle = {
>>>>          .has_device = true,
>>>>          .device = (char *) qdict_get_str(qdict, "device"),
>>>> -        .bps = qdict_get_int(qdict, "bps"),
>>>> -        .bps_rd = qdict_get_int(qdict, "bps_rd"),
>>>> -        .bps_wr = qdict_get_int(qdict, "bps_wr"),
>>>> -        .iops = qdict_get_int(qdict, "iops"),
>>>> -        .iops_rd = qdict_get_int(qdict, "iops_rd"),
>>>> -        .iops_wr = qdict_get_int(qdict, "iops_wr"),
>>>>      };
>>>>
>>>> +    iothrottle = qapi_BlockIOThrottle_base(&throttle);
>>>> +    hmp_initialize_io_throttle(iothrottle, qdict);
>>>>      qmp_block_set_io_throttle(&throttle, &err);
>>>>      hmp_handle_error(mon, &err);
>>>>  }
>>>> diff --git a/include/qemu/throttle-options.h b/include/qemu/throttle-options.h
>>>> index 9b68eb8..ccf10cc 100644
>>>> --- a/include/qemu/throttle-options.h
>>>> +++ b/include/qemu/throttle-options.h
>>>> @@ -94,4 +94,6 @@
>>>>
>>>>  void parse_io_throttle_options(ThrottleConfig *, QemuOpts *);
>>>>
>>>> +void qmp_set_io_throttle(ThrottleConfig *, IOThrottle *);
>>>> +
>>>>  #endif
>>>> diff --git a/util/throttle-options.c b/util/throttle-options.c
>>>> index 02b26b8..ded57bc 100644
>>>> --- a/util/throttle-options.c
>>>> +++ b/util/throttle-options.c
>>>> @@ -49,3 +49,57 @@ void parse_io_throttle_options(ThrottleConfig *throttle_cfg, QemuOpts *opts)
>>>>          qemu_opt_get_number(opts, "throttling.iops-size", 0);
>>>>
>>>>  }
>>>> +
>>>> +void qmp_set_io_throttle(ThrottleConfig *cfg, IOThrottle *arg)
>>>> +{
>>>> +    throttle_config_init(cfg);
>>>> +    cfg->buckets[THROTTLE_BPS_TOTAL].avg = arg->bps;
>>>> +    cfg->buckets[THROTTLE_BPS_READ].avg  = arg->bps_rd;
>>>> +    cfg->buckets[THROTTLE_BPS_WRITE].avg = arg->bps_wr;
>>>> +
>>>> +    cfg->buckets[THROTTLE_OPS_TOTAL].avg = arg->iops;
>>>> +    cfg->buckets[THROTTLE_OPS_READ].avg  = arg->iops_rd;
>>>> +    cfg->buckets[THROTTLE_OPS_WRITE].avg = arg->iops_wr;
>>>> +
>>>> +    if (arg->has_bps_max) {
>>>> +        cfg->buckets[THROTTLE_BPS_TOTAL].max = arg->bps_max;
>>>> +    }
>>>> +    if (arg->has_bps_rd_max) {
>>>> +        cfg->buckets[THROTTLE_BPS_READ].max = arg->bps_rd_max;
>>>> +    }
>>>> +    if (arg->has_bps_wr_max) {
>>>> +        cfg->buckets[THROTTLE_BPS_WRITE].max = arg->bps_wr_max;
>>>> +    }
>>>> +    if (arg->has_iops_max) {
>>>> +        cfg->buckets[THROTTLE_OPS_TOTAL].max = arg->iops_max;
>>>> +    }
>>>> +    if (arg->has_iops_rd_max) {
>>>> +        cfg->buckets[THROTTLE_OPS_READ].max = arg->iops_rd_max;
>>>> +    }
>>>> +    if (arg->has_iops_wr_max) {
>>>> +        cfg->buckets[THROTTLE_OPS_WRITE].max = arg->iops_wr_max;
>>>> +    }
>>>> +
>>>> +    if (arg->has_bps_max_length) {
>>>> +        cfg->buckets[THROTTLE_BPS_TOTAL].burst_length = arg->bps_max_length;
>>>> +    }
>>>> +    if (arg->has_bps_rd_max_length) {
>>>> +        cfg->buckets[THROTTLE_BPS_READ].burst_length = arg->bps_rd_max_length;
>>>> +    }
>>>> +    if (arg->has_bps_wr_max_length) {
>>>> +        cfg->buckets[THROTTLE_BPS_WRITE].burst_length = arg->bps_wr_max_length;
>>>> +    }
>>>> +    if (arg->has_iops_max_length) {
>>>> +        cfg->buckets[THROTTLE_OPS_TOTAL].burst_length = arg->iops_max_length;
>>>> +    }
>>>> +    if (arg->has_iops_rd_max_length) {
>>>> +        cfg->buckets[THROTTLE_OPS_READ].burst_length = arg->iops_rd_max_length;
>>>> +    }
>>>> +    if (arg->has_iops_wr_max_length) {
>>>> +        cfg->buckets[THROTTLE_OPS_WRITE].burst_length = arg->iops_wr_max_length;
>>>> +    }
>>>> +
>>>> +    if (arg->has_iops_size) {
>>>> +        cfg->op_size = arg->iops_size;
>>>> +    }
>>>> +}
>>
>>
>
diff mbox

Patch

diff --git a/blockdev.c b/blockdev.c
index a0eb2ed..a55f6be 100644
--- a/blockdev.c
+++ b/blockdev.c
@@ -2593,6 +2593,7 @@  void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp)
     BlockDriverState *bs;
     BlockBackend *blk;
     AioContext *aio_context;
+    IOThrottle *iothrottle;
 
     blk = qmp_get_blk(arg->has_device ? arg->device : NULL,
                       arg->has_id ? arg->id : NULL,
@@ -2610,56 +2611,8 @@  void qmp_block_set_io_throttle(BlockIOThrottle *arg, Error **errp)
         goto out;
     }
 
-    throttle_config_init(&cfg);
-    cfg.buckets[THROTTLE_BPS_TOTAL].avg = arg->bps;
-    cfg.buckets[THROTTLE_BPS_READ].avg  = arg->bps_rd;
-    cfg.buckets[THROTTLE_BPS_WRITE].avg = arg->bps_wr;
-
-    cfg.buckets[THROTTLE_OPS_TOTAL].avg = arg->iops;
-    cfg.buckets[THROTTLE_OPS_READ].avg  = arg->iops_rd;
-    cfg.buckets[THROTTLE_OPS_WRITE].avg = arg->iops_wr;
-
-    if (arg->has_bps_max) {
-        cfg.buckets[THROTTLE_BPS_TOTAL].max = arg->bps_max;
-    }
-    if (arg->has_bps_rd_max) {
-        cfg.buckets[THROTTLE_BPS_READ].max = arg->bps_rd_max;
-    }
-    if (arg->has_bps_wr_max) {
-        cfg.buckets[THROTTLE_BPS_WRITE].max = arg->bps_wr_max;
-    }
-    if (arg->has_iops_max) {
-        cfg.buckets[THROTTLE_OPS_TOTAL].max = arg->iops_max;
-    }
-    if (arg->has_iops_rd_max) {
-        cfg.buckets[THROTTLE_OPS_READ].max = arg->iops_rd_max;
-    }
-    if (arg->has_iops_wr_max) {
-        cfg.buckets[THROTTLE_OPS_WRITE].max = arg->iops_wr_max;
-    }
-
-    if (arg->has_bps_max_length) {
-        cfg.buckets[THROTTLE_BPS_TOTAL].burst_length = arg->bps_max_length;
-    }
-    if (arg->has_bps_rd_max_length) {
-        cfg.buckets[THROTTLE_BPS_READ].burst_length = arg->bps_rd_max_length;
-    }
-    if (arg->has_bps_wr_max_length) {
-        cfg.buckets[THROTTLE_BPS_WRITE].burst_length = arg->bps_wr_max_length;
-    }
-    if (arg->has_iops_max_length) {
-        cfg.buckets[THROTTLE_OPS_TOTAL].burst_length = arg->iops_max_length;
-    }
-    if (arg->has_iops_rd_max_length) {
-        cfg.buckets[THROTTLE_OPS_READ].burst_length = arg->iops_rd_max_length;
-    }
-    if (arg->has_iops_wr_max_length) {
-        cfg.buckets[THROTTLE_OPS_WRITE].burst_length = arg->iops_wr_max_length;
-    }
-
-    if (arg->has_iops_size) {
-        cfg.op_size = arg->iops_size;
-    }
+    iothrottle = qapi_BlockIOThrottle_base(arg);
+    qmp_set_io_throttle(&cfg, iothrottle);
 
     if (!throttle_is_valid(&cfg, errp)) {
         goto out;
diff --git a/hmp.c b/hmp.c
index ab407d6..9660373 100644
--- a/hmp.c
+++ b/hmp.c
@@ -1552,20 +1552,29 @@  void hmp_change(Monitor *mon, const QDict *qdict)
     hmp_handle_error(mon, &err);
 }
 
+static void hmp_initialize_io_throttle(IOThrottle *iot, const QDict *qdict)
+{
+    iot->has_id = true;
+    iot->id = (char *) qdict_get_str(qdict, "id");
+    iot->bps = qdict_get_int(qdict, "bps");
+    iot->bps_rd = qdict_get_int(qdict, "bps_rd");
+    iot->bps_wr = qdict_get_int(qdict, "bps_wr");
+    iot->iops = qdict_get_int(qdict, "iops");
+    iot->iops_rd = qdict_get_int(qdict, "iops_rd");
+    iot->iops_wr = qdict_get_int(qdict, "iops_wr");
+}
+
 void hmp_block_set_io_throttle(Monitor *mon, const QDict *qdict)
 {
     Error *err = NULL;
+    IOThrottle *iothrottle;
     BlockIOThrottle throttle = {
         .has_device = true,
         .device = (char *) qdict_get_str(qdict, "device"),
-        .bps = qdict_get_int(qdict, "bps"),
-        .bps_rd = qdict_get_int(qdict, "bps_rd"),
-        .bps_wr = qdict_get_int(qdict, "bps_wr"),
-        .iops = qdict_get_int(qdict, "iops"),
-        .iops_rd = qdict_get_int(qdict, "iops_rd"),
-        .iops_wr = qdict_get_int(qdict, "iops_wr"),
     };
 
+    iothrottle = qapi_BlockIOThrottle_base(&throttle);
+    hmp_initialize_io_throttle(iothrottle, qdict);
     qmp_block_set_io_throttle(&throttle, &err);
     hmp_handle_error(mon, &err);
 }
diff --git a/include/qemu/throttle-options.h b/include/qemu/throttle-options.h
index 9b68eb8..ccf10cc 100644
--- a/include/qemu/throttle-options.h
+++ b/include/qemu/throttle-options.h
@@ -94,4 +94,6 @@ 
 
 void parse_io_throttle_options(ThrottleConfig *, QemuOpts *);
 
+void qmp_set_io_throttle(ThrottleConfig *, IOThrottle *);
+
 #endif
diff --git a/util/throttle-options.c b/util/throttle-options.c
index 02b26b8..ded57bc 100644
--- a/util/throttle-options.c
+++ b/util/throttle-options.c
@@ -49,3 +49,57 @@  void parse_io_throttle_options(ThrottleConfig *throttle_cfg, QemuOpts *opts)
         qemu_opt_get_number(opts, "throttling.iops-size", 0);
 
 }
+
+void qmp_set_io_throttle(ThrottleConfig *cfg, IOThrottle *arg)
+{
+    throttle_config_init(cfg);
+    cfg->buckets[THROTTLE_BPS_TOTAL].avg = arg->bps;
+    cfg->buckets[THROTTLE_BPS_READ].avg  = arg->bps_rd;
+    cfg->buckets[THROTTLE_BPS_WRITE].avg = arg->bps_wr;
+
+    cfg->buckets[THROTTLE_OPS_TOTAL].avg = arg->iops;
+    cfg->buckets[THROTTLE_OPS_READ].avg  = arg->iops_rd;
+    cfg->buckets[THROTTLE_OPS_WRITE].avg = arg->iops_wr;
+
+    if (arg->has_bps_max) {
+        cfg->buckets[THROTTLE_BPS_TOTAL].max = arg->bps_max;
+    }
+    if (arg->has_bps_rd_max) {
+        cfg->buckets[THROTTLE_BPS_READ].max = arg->bps_rd_max;
+    }
+    if (arg->has_bps_wr_max) {
+        cfg->buckets[THROTTLE_BPS_WRITE].max = arg->bps_wr_max;
+    }
+    if (arg->has_iops_max) {
+        cfg->buckets[THROTTLE_OPS_TOTAL].max = arg->iops_max;
+    }
+    if (arg->has_iops_rd_max) {
+        cfg->buckets[THROTTLE_OPS_READ].max = arg->iops_rd_max;
+    }
+    if (arg->has_iops_wr_max) {
+        cfg->buckets[THROTTLE_OPS_WRITE].max = arg->iops_wr_max;
+    }
+
+    if (arg->has_bps_max_length) {
+        cfg->buckets[THROTTLE_BPS_TOTAL].burst_length = arg->bps_max_length;
+    }
+    if (arg->has_bps_rd_max_length) {
+        cfg->buckets[THROTTLE_BPS_READ].burst_length = arg->bps_rd_max_length;
+    }
+    if (arg->has_bps_wr_max_length) {
+        cfg->buckets[THROTTLE_BPS_WRITE].burst_length = arg->bps_wr_max_length;
+    }
+    if (arg->has_iops_max_length) {
+        cfg->buckets[THROTTLE_OPS_TOTAL].burst_length = arg->iops_max_length;
+    }
+    if (arg->has_iops_rd_max_length) {
+        cfg->buckets[THROTTLE_OPS_READ].burst_length = arg->iops_rd_max_length;
+    }
+    if (arg->has_iops_wr_max_length) {
+        cfg->buckets[THROTTLE_OPS_WRITE].burst_length = arg->iops_wr_max_length;
+    }
+
+    if (arg->has_iops_size) {
+        cfg->op_size = arg->iops_size;
+    }
+}