diff mbox

[2/2,v15] throttle: factor out duplicate code

Message ID 1486116298-25046-3-git-send-email-pradeep.jagadeesh@huawei.com
State New
Headers show

Commit Message

Pradeep Jagadeesh Feb. 3, 2017, 10:04 a.m. UTC 
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 ++---------------------------------
 hw/9pfs/9p.c                    |  2 +-
 include/qemu/throttle-options.h | 92 +++++++++++++++++++++++++++++++++++++++++
 4 files changed, 101 insertions(+), 154 deletions(-)
 create mode 100644 include/qemu/throttle-options.h

Comments

Alberto Garcia Feb. 3, 2017, 10:38 a.m. UTC | #1 
On Fri 03 Feb 2017 11:04:58 AM CET, Pradeep Jagadeesh 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.

Here it says that this patch moves common code to a separate file,
however:

> diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
> index 920eb05..22a6a99 100644
> --- a/hw/9pfs/9p.c
> +++ b/hw/9pfs/9p.c
> @@ -3532,7 +3532,6 @@ out:
>          if (s->ops && s->ops->cleanup && s->ctx.private) {
>              s->ops->cleanup(&s->ctx);
>          }
> -        fsdev_throttle_cleanup(s->ctx.fst);
>          g_free(s->tag);
>          g_free(s->ctx.fs_root);
>          v9fs_path_free(&path);
> @@ -3545,6 +3544,7 @@ void v9fs_device_unrealize_common(V9fsState *s, Error **errp)
>      if (s->ops->cleanup) {
>          s->ops->cleanup(&s->ctx);
>      }
> +    fsdev_throttle_cleanup(s->ctx.fst);
>      g_free(s->tag);
>      g_free(s->ctx.fs_root);
>  }

This doesn't belong here. In patch 1 you add a fsdev_throttle_cleanup()
in v9fs_device_realize_common(), and in patch 2 you remove it from there
and put it in v9fs_device_unrealize_common().

It looks like you wanted to fix patch 1 but added the fix to patch 2
instead.

Berto
Pradeep Jagadeesh Feb. 3, 2017, 11:58 a.m. UTC | #2 
On 2/3/2017 11:38 AM, Alberto Garcia wrote:
> On Fri 03 Feb 2017 11:04:58 AM CET, Pradeep Jagadeesh 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.
>
> Here it says that this patch moves common code to a separate file,
> however:

Hmm, sorry. I just messed it up while merging.

Regards,
Pradeep
>
>> diff --git a/hw/9pfs/9p.c b/hw/9pfs/9p.c
>> index 920eb05..22a6a99 100644
>> --- a/hw/9pfs/9p.c
>> +++ b/hw/9pfs/9p.c
>> @@ -3532,7 +3532,6 @@ out:
>>          if (s->ops && s->ops->cleanup && s->ctx.private) {
>>              s->ops->cleanup(&s->ctx);
>>          }
>> -        fsdev_throttle_cleanup(s->ctx.fst);
>>          g_free(s->tag);
>>          g_free(s->ctx.fs_root);
>>          v9fs_path_free(&path);
>> @@ -3545,6 +3544,7 @@ void v9fs_device_unrealize_common(V9fsState *s, Error **errp)
>>      if (s->ops->cleanup) {
>>          s->ops->cleanup(&s->ctx);
>>      }
>> +    fsdev_throttle_cleanup(s->ctx.fst);
>>      g_free(s->tag);
>>      g_free(s->ctx.fs_root);
>>  }
>
> This doesn't belong here. In patch 1 you add a fsdev_throttle_cleanup()
> in v9fs_device_realize_common(), and in patch 2 you remove it from there
> and put it in v9fs_device_unrealize_common().
>
> It looks like you wanted to fix patch 1 but added the fix to patch 2
> instead.
>
> Berto
>
diff mbox

Patch

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,
+          {
             .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/hw/9pfs/9p.c b/hw/9pfs/9p.c
index 920eb05..22a6a99 100644
--- a/hw/9pfs/9p.c
+++ b/hw/9pfs/9p.c
@@ -3532,7 +3532,6 @@  out:
         if (s->ops && s->ops->cleanup && s->ctx.private) {
             s->ops->cleanup(&s->ctx);
         }
-        fsdev_throttle_cleanup(s->ctx.fst);
         g_free(s->tag);
         g_free(s->ctx.fs_root);
         v9fs_path_free(&path);
@@ -3545,6 +3544,7 @@  void v9fs_device_unrealize_common(V9fsState *s, Error **errp)
     if (s->ops->cleanup) {
         s->ops->cleanup(&s->ctx);
     }
+    fsdev_throttle_cleanup(s->ctx.fst);
     g_free(s->tag);
     g_free(s->ctx.fs_root);
 }
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