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From: Greg Kurz <groug@kaod.org>
To: Pradeep Jagadeesh <pradeepkiruvale@gmail.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>,
	Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com>,
	Alberto Garcia <berto@igalia.com>,
	qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 2/2 v16] throttle: factor out duplicate code
Date: Mon, 6 Feb 2017 15:58:43 +0100	[thread overview]
Message-ID: <20170206155843.27adcaed@bahia.lan> (raw)
In-Reply-To: <1486123043-26493-3-git-send-email-pradeep.jagadeesh@huawei.com>

On Fri,  3 Feb 2017 06:57:23 -0500
Pradeep Jagadeesh <pradeepkiruvale@gmail.com> wrote:

> This patch removes the redundant throttle code that was present in
> block and fsdev device files. Now the common code is moved
> to a single file.
> 
> Signed-off-by: Pradeep Jagadeesh <pradeep.jagadeesh@huawei.com>
> 
> https://lists.gnu.org/archive/html/qemu-devel/2017-01/msg04637.html
> ---
>  blockdev.c                      | 81 ++----------------------------------
>  fsdev/qemu-fsdev-opts.c         | 80 ++---------------------------------
>  include/qemu/throttle-options.h | 92 +++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 100 insertions(+), 153 deletions(-)
>  create mode 100644 include/qemu/throttle-options.h
> 
> diff --git a/blockdev.c b/blockdev.c
> index 245e1e1..9320c8a 100644
> --- a/blockdev.c
> +++ b/blockdev.c
> @@ -52,6 +52,7 @@
>  #include "sysemu/arch_init.h"
>  #include "qemu/cutils.h"
>  #include "qemu/help_option.h"
> +#include "qemu/throttle-options.h"
>  
>  static QTAILQ_HEAD(, BlockDriverState) monitor_bdrv_states =
>      QTAILQ_HEAD_INITIALIZER(monitor_bdrv_states);
> @@ -3999,83 +4000,9 @@ QemuOptsList qemu_common_drive_opts = {
>              .name = BDRV_OPT_READ_ONLY,
>              .type = QEMU_OPT_BOOL,
>              .help = "open drive file as read-only",
> -        },{
> -            .name = "throttling.iops-total",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit total I/O operations per second",
> -        },{
> -            .name = "throttling.iops-read",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit read operations per second",
> -        },{
> -            .name = "throttling.iops-write",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit write operations per second",
> -        },{
> -            .name = "throttling.bps-total",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit total bytes per second",
> -        },{
> -            .name = "throttling.bps-read",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit read bytes per second",
> -        },{
> -            .name = "throttling.bps-write",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit write bytes per second",
> -        },{
> -            .name = "throttling.iops-total-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "I/O operations burst",
> -        },{
> -            .name = "throttling.iops-read-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "I/O operations read burst",
> -        },{
> -            .name = "throttling.iops-write-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "I/O operations write burst",
> -        },{
> -            .name = "throttling.bps-total-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "total bytes burst",
> -        },{
> -            .name = "throttling.bps-read-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "total bytes read burst",
> -        },{
> -            .name = "throttling.bps-write-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "total bytes write burst",
> -        },{
> -            .name = "throttling.iops-total-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the iops-total-max burst period, in seconds",
> -        },{
> -            .name = "throttling.iops-read-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the iops-read-max burst period, in seconds",
> -        },{
> -            .name = "throttling.iops-write-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the iops-write-max burst period, in seconds",
> -        },{
> -            .name = "throttling.bps-total-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the bps-total-max burst period, in seconds",
> -        },{
> -            .name = "throttling.bps-read-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the bps-read-max burst period, in seconds",
> -        },{
> -            .name = "throttling.bps-write-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the bps-write-max burst period, in seconds",
> -        },{
> -            .name = "throttling.iops-size",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "when limiting by iops max size of an I/O in bytes",
> -        },{
> +        },
> +            THROTTLE_OPTS,
> +          {

Indent nit ^^. Also this could be surrounded by some empty lines as you
did in fsdev/qemu-fsdev-opts.c below.

I wouldn't ask you to send a v17 for this though and I've updated your
patch instead. I've also added Stefan's and Berto's Reviewed-by, and
pushed the whole series to my 9p-next tree at:

https://github.com/gkurz/qemu/commits/9p-next

Cheers.

--
Greg

>              .name = "throttling.group",
>              .type = QEMU_OPT_STRING,
>              .help = "name of the block throttling group",
> diff --git a/fsdev/qemu-fsdev-opts.c b/fsdev/qemu-fsdev-opts.c
> index 385423f0..bf57130 100644
> --- a/fsdev/qemu-fsdev-opts.c
> +++ b/fsdev/qemu-fsdev-opts.c
> @@ -9,6 +9,7 @@
>  #include "qemu/config-file.h"
>  #include "qemu/option.h"
>  #include "qemu/module.h"
> +#include "qemu/throttle-options.h"
>  
>  static QemuOptsList qemu_fsdev_opts = {
>      .name = "fsdev",
> @@ -37,83 +38,10 @@ static QemuOptsList qemu_fsdev_opts = {
>          }, {
>              .name = "sock_fd",
>              .type = QEMU_OPT_NUMBER,
> -        }, {
> -            .name = "throttling.iops-total",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit total I/O operations per second",
> -        }, {
> -            .name = "throttling.iops-read",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit read operations per second",
> -        }, {
> -            .name = "throttling.iops-write",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit write operations per second",
> -        }, {
> -            .name = "throttling.bps-total",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit total bytes per second",
> -        }, {
> -            .name = "throttling.bps-read",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit read bytes per second",
> -        }, {
> -            .name = "throttling.bps-write",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "limit write bytes per second",
> -        }, {
> -            .name = "throttling.iops-total-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "I/O operations burst",
> -        }, {
> -            .name = "throttling.iops-read-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "I/O operations read burst",
> -        }, {
> -            .name = "throttling.iops-write-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "I/O operations write burst",
> -        }, {
> -            .name = "throttling.bps-total-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "total bytes burst",
> -        }, {
> -            .name = "throttling.bps-read-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "total bytes read burst",
> -        }, {
> -            .name = "throttling.bps-write-max",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "total bytes write burst",
> -        }, {
> -            .name = "throttling.iops-total-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the iops-total-max burst period, in seconds",
> -        }, {
> -            .name = "throttling.iops-read-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the iops-read-max burst period, in seconds",
> -        }, {
> -            .name = "throttling.iops-write-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the iops-write-max burst period, in seconds",
> -        }, {
> -            .name = "throttling.bps-total-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the bps-total-max burst period, in seconds",
> -        }, {
> -            .name = "throttling.bps-read-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the bps-read-max burst period, in seconds",
> -        }, {
> -            .name = "throttling.bps-write-max-length",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "length of the bps-write-max burst period, in seconds",
> -        }, {
> -            .name = "throttling.iops-size",
> -            .type = QEMU_OPT_NUMBER,
> -            .help = "when limiting by iops max size of an I/O in bytes",
>          },
> +
> +        THROTTLE_OPTS,
> +
>          { /*End of list */ }
>      },
>  };
> diff --git a/include/qemu/throttle-options.h b/include/qemu/throttle-options.h
> new file mode 100644
> index 0000000..3133d1c
> --- /dev/null
> +++ b/include/qemu/throttle-options.h
> @@ -0,0 +1,92 @@
> +/*
> + * QEMU throttling command line options
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or
> + * (at your option) any later version.
> + *
> + * See the COPYING file in the top-level directory for details.
> + *
> + */
> +#ifndef THROTTLE_OPTIONS_H
> +#define THROTTLE_OPTIONS_H
> +
> +#define THROTTLE_OPTS \
> +          { \
> +            .name = "throttling.iops-total",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "limit total I/O operations per second",\
> +        },{ \
> +            .name = "throttling.iops-read",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "limit read operations per second",\
> +        },{ \
> +            .name = "throttling.iops-write",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "limit write operations per second",\
> +        },{ \
> +            .name = "throttling.bps-total",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "limit total bytes per second",\
> +        },{ \
> +            .name = "throttling.bps-read",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "limit read bytes per second",\
> +        },{ \
> +            .name = "throttling.bps-write",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "limit write bytes per second",\
> +        },{ \
> +            .name = "throttling.iops-total-max",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "I/O operations burst",\
> +        },{ \
> +            .name = "throttling.iops-read-max",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "I/O operations read burst",\
> +        },{ \
> +            .name = "throttling.iops-write-max",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "I/O operations write burst",\
> +        },{ \
> +            .name = "throttling.bps-total-max",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "total bytes burst",\
> +        },{ \
> +            .name = "throttling.bps-read-max",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "total bytes read burst",\
> +        },{ \
> +            .name = "throttling.bps-write-max",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "total bytes write burst",\
> +        },{ \
> +            .name = "throttling.iops-total-max-length",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "length of the iops-total-max burst period, in seconds",\
> +        },{ \
> +            .name = "throttling.iops-read-max-length",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "length of the iops-read-max burst period, in seconds",\
> +        },{ \
> +            .name = "throttling.iops-write-max-length",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "length of the iops-write-max burst period, in seconds",\
> +        },{ \
> +            .name = "throttling.bps-total-max-length",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "length of the bps-total-max burst period, in seconds",\
> +        },{ \
> +            .name = "throttling.bps-read-max-length",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "length of the bps-read-max burst period, in seconds",\
> +        },{ \
> +            .name = "throttling.bps-write-max-length",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "length of the bps-write-max burst period, in seconds",\
> +        },{ \
> +            .name = "throttling.iops-size",\
> +            .type = QEMU_OPT_NUMBER,\
> +            .help = "when limiting by iops max size of an I/O in bytes",\
> +        }
> +
> +#endif

  parent reply	other threads:[~2017-02-06 14:58 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-03 11:57 [Qemu-devel] [PATCH 0/2 v16] fsdev: add IO throttle support to fsdev devices Pradeep Jagadeesh
2017-02-03 11:57 ` [Qemu-devel] [PATCH 1/2 " Pradeep Jagadeesh
2017-02-03 12:21   ` Alberto Garcia
2017-02-06 19:36   ` Eric Blake
2017-02-06 23:15     ` Greg Kurz
2017-02-07 10:32       ` Greg Kurz
2017-02-07 15:56         ` Eric Blake
2017-02-07 16:29           ` Greg Kurz
2017-02-14 13:21             ` Stefan Hajnoczi
2017-02-22 13:41               ` Greg Kurz
2017-02-22 16:01                 ` Eric Blake
2017-02-22 16:59                   ` Greg Kurz
2017-02-22 17:04                     ` Eric Blake
2017-02-07  6:18     ` Fam Zheng
2017-02-07 10:34     ` Pradeep Jagadeesh
2017-02-03 11:57 ` [Qemu-devel] [PATCH 2/2 v16] throttle: factor out duplicate code Pradeep Jagadeesh
2017-02-03 12:22   ` Alberto Garcia
2017-02-03 12:27     ` Pradeep Jagadeesh
2017-02-03 12:44       ` Alberto Garcia
2017-02-03 12:46         ` Pradeep Jagadeesh
2017-02-03 12:53           ` Alberto Garcia
2017-02-03 12:57             ` Pradeep Jagadeesh
2017-02-06 14:58   ` Greg Kurz [this message]
2017-02-06 15:19     ` Pradeep Jagadeesh
2017-02-03 12:02 ` [Qemu-devel] [PATCH 0/2 v16] fsdev: add IO throttle support to fsdev devices no-reply

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