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qemu-kvm/SOURCES/kvm-blockjob-Move-RateLimit...

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From 2544eb52961510e97b6bda33f9d9e71e01e5143d Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Tue, 26 Jun 2018 09:47:53 +0200
Subject: [PATCH 085/268] blockjob: Move RateLimit to BlockJob
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20180626094856.6924-11-kwolf@redhat.com>
Patchwork-id: 81088
O-Subject: [RHV-7.6 qemu-kvm-rhev PATCH v2 10/73] blockjob: Move RateLimit to BlockJob
Bugzilla: 1513543
RH-Acked-by: Jeffrey Cody <jcody@redhat.com>
RH-Acked-by: Max Reitz <mreitz@redhat.com>
RH-Acked-by: Fam Zheng <famz@redhat.com>
Every block job has a RateLimit, and they all do the exact same thing
with it, so it should be common infrastructure. Move the struct field
for a start.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
(cherry picked from commit f05fee508f538ca262d2ab19bcd8772196efe848)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
block/backup.c | 5 ++---
block/commit.c | 5 ++---
block/mirror.c | 6 +++---
block/stream.c | 5 ++---
include/block/blockjob.h | 4 ++++
5 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/block/backup.c b/block/backup.c
index 5d95805..7585c43 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -35,7 +35,6 @@ typedef struct BackupBlockJob {
/* bitmap for sync=incremental */
BdrvDirtyBitmap *sync_bitmap;
MirrorSyncMode sync_mode;
- RateLimit limit;
BlockdevOnError on_source_error;
BlockdevOnError on_target_error;
CoRwlock flush_rwlock;
@@ -199,7 +198,7 @@ static void backup_set_speed(BlockJob *job, int64_t speed, Error **errp)
error_setg(errp, QERR_INVALID_PARAMETER, "speed");
return;
}
- ratelimit_set_speed(&s->limit, speed, SLICE_TIME);
+ ratelimit_set_speed(&s->common.limit, speed, SLICE_TIME);
}
static void backup_cleanup_sync_bitmap(BackupBlockJob *job, int ret)
@@ -346,7 +345,7 @@ static bool coroutine_fn yield_and_check(BackupBlockJob *job)
* (without, VM does not reboot)
*/
if (job->common.speed) {
- uint64_t delay_ns = ratelimit_calculate_delay(&job->limit,
+ uint64_t delay_ns = ratelimit_calculate_delay(&job->common.limit,
job->bytes_read);
job->bytes_read = 0;
block_job_sleep_ns(&job->common, delay_ns);
diff --git a/block/commit.c b/block/commit.c
index 50b191c..beec5d0 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -35,7 +35,6 @@ enum {
typedef struct CommitBlockJob {
BlockJob common;
- RateLimit limit;
BlockDriverState *commit_top_bs;
BlockBackend *top;
BlockBackend *base;
@@ -201,7 +200,7 @@ static void coroutine_fn commit_run(void *opaque)
block_job_progress_update(&s->common, n);
if (copy && s->common.speed) {
- delay_ns = ratelimit_calculate_delay(&s->limit, n);
+ delay_ns = ratelimit_calculate_delay(&s->common.limit, n);
} else {
delay_ns = 0;
}
@@ -225,7 +224,7 @@ static void commit_set_speed(BlockJob *job, int64_t speed, Error **errp)
error_setg(errp, QERR_INVALID_PARAMETER, "speed");
return;
}
- ratelimit_set_speed(&s->limit, speed, SLICE_TIME);
+ ratelimit_set_speed(&s->common.limit, speed, SLICE_TIME);
}
static const BlockJobDriver commit_job_driver = {
diff --git a/block/mirror.c b/block/mirror.c
index ed711b5..a515ec1 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -36,7 +36,6 @@ typedef struct MirrorBuffer {
typedef struct MirrorBlockJob {
BlockJob common;
- RateLimit limit;
BlockBackend *target;
BlockDriverState *mirror_top_bs;
BlockDriverState *source;
@@ -450,7 +449,8 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)
offset += io_bytes;
nb_chunks -= DIV_ROUND_UP(io_bytes, s->granularity);
if (s->common.speed) {
- delay_ns = ratelimit_calculate_delay(&s->limit, io_bytes_acct);
+ delay_ns = ratelimit_calculate_delay(&s->common.limit,
+ io_bytes_acct);
}
}
return delay_ns;
@@ -916,7 +916,7 @@ static void mirror_set_speed(BlockJob *job, int64_t speed, Error **errp)
error_setg(errp, QERR_INVALID_PARAMETER, "speed");
return;
}
- ratelimit_set_speed(&s->limit, speed, SLICE_TIME);
+ ratelimit_set_speed(&s->common.limit, speed, SLICE_TIME);
}
static void mirror_complete(BlockJob *job, Error **errp)
diff --git a/block/stream.c b/block/stream.c
index 8369852..a1d4768 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -33,7 +33,6 @@ enum {
typedef struct StreamBlockJob {
BlockJob common;
- RateLimit limit;
BlockDriverState *base;
BlockdevOnError on_error;
char *backing_file_str;
@@ -189,7 +188,7 @@ static void coroutine_fn stream_run(void *opaque)
/* Publish progress */
block_job_progress_update(&s->common, n);
if (copy && s->common.speed) {
- delay_ns = ratelimit_calculate_delay(&s->limit, n);
+ delay_ns = ratelimit_calculate_delay(&s->common.limit, n);
} else {
delay_ns = 0;
}
@@ -219,7 +218,7 @@ static void stream_set_speed(BlockJob *job, int64_t speed, Error **errp)
error_setg(errp, QERR_INVALID_PARAMETER, "speed");
return;
}
- ratelimit_set_speed(&s->limit, speed, SLICE_TIME);
+ ratelimit_set_speed(&s->common.limit, speed, SLICE_TIME);
}
static const BlockJobDriver stream_job_driver = {
diff --git a/include/block/blockjob.h b/include/block/blockjob.h
index a2cc522..22bf418 100644
--- a/include/block/blockjob.h
+++ b/include/block/blockjob.h
@@ -27,6 +27,7 @@
#define BLOCKJOB_H
#include "block/block.h"
+#include "qemu/ratelimit.h"
typedef struct BlockJobDriver BlockJobDriver;
typedef struct BlockJobTxn BlockJobTxn;
@@ -118,6 +119,9 @@ typedef struct BlockJob {
/** Speed that was set with @block_job_set_speed. */
int64_t speed;
+ /** Rate limiting data structure for implementing @speed. */
+ RateLimit limit;
+
/** The completion function that will be called when the job completes. */
BlockCompletionFunc *cb;
--
1.8.3.1
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