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qemu-kvm/SOURCES/kvm-job-Move-progress-fields-to-Job.patch

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From 63d4efaba799ee14d474e545f5634ee1c4369ef6 Mon Sep 17 00:00:00 2001
From: Kevin Wolf <kwolf@redhat.com>
Date: Tue, 26 Jun 2018 09:48:29 +0200
Subject: [PATCH 121/268] job: Move progress fields to Job
RH-Author: Kevin Wolf <kwolf@redhat.com>
Message-id: <20180626094856.6924-47-kwolf@redhat.com>
Patchwork-id: 81115
O-Subject: [RHV-7.6 qemu-kvm-rhev PATCH v2 46/73] job: Move progress fields to Job
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>
BlockJob has fields .offset and .len, which are actually misnomers today
because they are no longer tied to block device sizes, but just progress
counters. As such they make a lot of sense in generic Jobs.
This patch moves the fields to Job and renames them to .progress_current
and .progress_total to describe their function better.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
(cherry picked from commit 30a5c887bf4a7e00d0e0ecbb08509e8ba2902620)
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
block/backup.c | 8 ++++----
block/commit.c | 4 ++--
block/mirror.c | 4 ++--
block/stream.c | 4 ++--
blockjob.c | 26 ++++++++------------------
include/block/blockjob.h | 25 -------------------------
include/qemu/job.h | 28 ++++++++++++++++++++++++++++
job.c | 10 ++++++++++
qemu-img.c | 8 ++++++--
9 files changed, 62 insertions(+), 55 deletions(-)
diff --git a/block/backup.c b/block/backup.c
index 6f4f3df..4e228e9 100644
--- a/block/backup.c
+++ b/block/backup.c
@@ -160,7 +160,7 @@ static int coroutine_fn backup_do_cow(BackupBlockJob *job,
* offset field is an opaque progress value, it is not a disk offset.
*/
job->bytes_read += n;
- block_job_progress_update(&job->common, n);
+ job_progress_update(&job->common.job, n);
}
out:
@@ -406,8 +406,8 @@ static void backup_incremental_init_copy_bitmap(BackupBlockJob *job)
bdrv_set_dirty_iter(dbi, next_cluster * job->cluster_size);
}
- /* TODO block_job_progress_set_remaining() would make more sense */
- block_job_progress_update(&job->common,
+ /* TODO job_progress_set_remaining() would make more sense */
+ job_progress_update(&job->common.job,
job->len - hbitmap_count(job->copy_bitmap) * job->cluster_size);
bdrv_dirty_iter_free(dbi);
@@ -425,7 +425,7 @@ static void coroutine_fn backup_run(void *opaque)
qemu_co_rwlock_init(&job->flush_rwlock);
nb_clusters = DIV_ROUND_UP(job->len, job->cluster_size);
- block_job_progress_set_remaining(&job->common, job->len);
+ job_progress_set_remaining(&job->common.job, job->len);
job->copy_bitmap = hbitmap_alloc(nb_clusters, 0);
if (job->sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) {
diff --git a/block/commit.c b/block/commit.c
index b0a847e..6206661 100644
--- a/block/commit.c
+++ b/block/commit.c
@@ -150,7 +150,7 @@ static void coroutine_fn commit_run(void *opaque)
if (len < 0) {
goto out;
}
- block_job_progress_set_remaining(&s->common, len);
+ job_progress_set_remaining(&s->common.job, len);
ret = base_len = blk_getlength(s->base);
if (base_len < 0) {
@@ -196,7 +196,7 @@ static void coroutine_fn commit_run(void *opaque)
}
}
/* Publish progress */
- block_job_progress_update(&s->common, n);
+ job_progress_update(&s->common.job, n);
if (copy) {
delay_ns = block_job_ratelimit_get_delay(&s->common, n);
diff --git a/block/mirror.c b/block/mirror.c
index bdc1b5b..dcb66ec 100644
--- a/block/mirror.c
+++ b/block/mirror.c
@@ -119,7 +119,7 @@ static void mirror_iteration_done(MirrorOp *op, int ret)
bitmap_set(s->cow_bitmap, chunk_num, nb_chunks);
}
if (!s->initial_zeroing_ongoing) {
- block_job_progress_update(&s->common, op->bytes);
+ job_progress_update(&s->common.job, op->bytes);
}
}
qemu_iovec_destroy(&op->qiov);
@@ -792,7 +792,7 @@ static void coroutine_fn mirror_run(void *opaque)
/* cnt is the number of dirty bytes remaining and s->bytes_in_flight is
* the number of bytes currently being processed; together those are
* the current remaining operation length */
- block_job_progress_set_remaining(&s->common, s->bytes_in_flight + cnt);
+ job_progress_set_remaining(&s->common.job, s->bytes_in_flight + cnt);
/* Note that even when no rate limit is applied we need to yield
* periodically with no pending I/O so that bdrv_drain_all() returns.
diff --git a/block/stream.c b/block/stream.c
index 8546c41..a5d6e0c 100644
--- a/block/stream.c
+++ b/block/stream.c
@@ -121,7 +121,7 @@ static void coroutine_fn stream_run(void *opaque)
ret = len;
goto out;
}
- block_job_progress_set_remaining(&s->common, len);
+ job_progress_set_remaining(&s->common.job, len);
buf = qemu_blockalign(bs, STREAM_BUFFER_SIZE);
@@ -184,7 +184,7 @@ static void coroutine_fn stream_run(void *opaque)
ret = 0;
/* Publish progress */
- block_job_progress_update(&s->common, n);
+ job_progress_update(&s->common.job, n);
if (copy) {
delay_ns = block_job_ratelimit_get_delay(&s->common, n);
} else {
diff --git a/blockjob.c b/blockjob.c
index da11b3b..5c8ff6f 100644
--- a/blockjob.c
+++ b/blockjob.c
@@ -242,16 +242,6 @@ int64_t block_job_ratelimit_get_delay(BlockJob *job, uint64_t n)
return ratelimit_calculate_delay(&job->limit, n);
}
-void block_job_progress_update(BlockJob *job, uint64_t done)
-{
- job->offset += done;
-}
-
-void block_job_progress_set_remaining(BlockJob *job, uint64_t remaining)
-{
- job->len = job->offset + remaining;
-}
-
BlockJobInfo *block_job_query(BlockJob *job, Error **errp)
{
BlockJobInfo *info;
@@ -263,10 +253,10 @@ BlockJobInfo *block_job_query(BlockJob *job, Error **errp)
info = g_new0(BlockJobInfo, 1);
info->type = g_strdup(job_type_str(&job->job));
info->device = g_strdup(job->job.id);
- info->len = job->len;
info->busy = atomic_read(&job->job.busy);
info->paused = job->job.pause_count > 0;
- info->offset = job->offset;
+ info->offset = job->job.progress_current;
+ info->len = job->job.progress_total;
info->speed = job->speed;
info->io_status = job->iostatus;
info->ready = job_is_ready(&job->job),
@@ -296,8 +286,8 @@ static void block_job_event_cancelled(Notifier *n, void *opaque)
qapi_event_send_block_job_cancelled(job_type(&job->job),
job->job.id,
- job->len,
- job->offset,
+ job->job.progress_total,
+ job->job.progress_current,
job->speed,
&error_abort);
}
@@ -317,8 +307,8 @@ static void block_job_event_completed(Notifier *n, void *opaque)
qapi_event_send_block_job_completed(job_type(&job->job),
job->job.id,
- job->len,
- job->offset,
+ job->job.progress_total,
+ job->job.progress_current,
job->speed,
!!msg,
msg,
@@ -348,8 +338,8 @@ static void block_job_event_ready(Notifier *n, void *opaque)
qapi_event_send_block_job_ready(job_type(&job->job),
job->job.id,
- job->len,
- job->offset,
+ job->job.progress_total,
+ job->job.progress_current,
job->speed, &error_abort);
}
diff --git a/include/block/blockjob.h b/include/block/blockjob.h
index 4fca45f..3021d11 100644
--- a/include/block/blockjob.h
+++ b/include/block/blockjob.h
@@ -52,12 +52,6 @@ typedef struct BlockJob {
/** Status that is published by the query-block-jobs QMP API */
BlockDeviceIoStatus iostatus;
- /** Offset that is published by the query-block-jobs QMP API */
- int64_t offset;
-
- /** Length that is published by the query-block-jobs QMP API */
- int64_t len;
-
/** Speed that was set with @block_job_set_speed. */
int64_t speed;
@@ -139,25 +133,6 @@ void block_job_remove_all_bdrv(BlockJob *job);
void block_job_set_speed(BlockJob *job, int64_t speed, Error **errp);
/**
- * block_job_progress_update:
- * @job: The job that has made progress
- * @done: How much progress the job made
- *
- * Updates the progress counter of the job.
- */
-void block_job_progress_update(BlockJob *job, uint64_t done);
-
-/**
- * block_job_progress_set_remaining:
- * @job: The job whose expected progress end value is set
- * @remaining: Expected end value of the progress counter of the job
- *
- * Sets the expected end value of the progress counter of a job so that a
- * completion percentage can be calculated when the progress is updated.
- */
-void block_job_progress_set_remaining(BlockJob *job, uint64_t remaining);
-
-/**
* block_job_query:
* @job: The job to get information about.
*
diff --git a/include/qemu/job.h b/include/qemu/job.h
index bfc2bc5..92d1d24 100644
--- a/include/qemu/job.h
+++ b/include/qemu/job.h
@@ -114,6 +114,16 @@ typedef struct Job {
/** True if this job should automatically dismiss itself */
bool auto_dismiss;
+ /**
+ * Current progress. The unit is arbitrary as long as the ratio between
+ * progress_current and progress_total represents the estimated percentage
+ * of work already done.
+ */
+ int64_t progress_current;
+
+ /** Estimated progress_current value at the completion of the job */
+ int64_t progress_total;
+
/** ret code passed to job_completed. */
int ret;
@@ -304,6 +314,24 @@ void job_ref(Job *job);
*/
void job_unref(Job *job);
+/**
+ * @job: The job that has made progress
+ * @done: How much progress the job made since the last call
+ *
+ * Updates the progress counter of the job.
+ */
+void job_progress_update(Job *job, uint64_t done);
+
+/**
+ * @job: The job whose expected progress end value is set
+ * @remaining: Missing progress (on top of the current progress counter value)
+ * until the new expected end value is reached
+ *
+ * Sets the expected end value of the progress counter of a job so that a
+ * completion percentage can be calculated when the progress is updated.
+ */
+void job_progress_set_remaining(Job *job, uint64_t remaining);
+
/** To be called when a cancelled job is finalised. */
void job_event_cancelled(Job *job);
diff --git a/job.c b/job.c
index b5bd51b..2046d2f 100644
--- a/job.c
+++ b/job.c
@@ -364,6 +364,16 @@ void job_unref(Job *job)
}
}
+void job_progress_update(Job *job, uint64_t done)
+{
+ job->progress_current += done;
+}
+
+void job_progress_set_remaining(Job *job, uint64_t remaining)
+{
+ job->progress_total = job->progress_current + remaining;
+}
+
void job_event_cancelled(Job *job)
{
notifier_list_notify(&job->on_finalize_cancelled, job);
diff --git a/qemu-img.c b/qemu-img.c
index 3c449a2..9fc8e66 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -875,9 +875,13 @@ static void run_block_job(BlockJob *job, Error **errp)
aio_context_acquire(aio_context);
job_ref(&job->job);
do {
+ float progress = 0.0f;
aio_poll(aio_context, true);
- qemu_progress_print(job->len ?
- ((float)job->offset / job->len * 100.f) : 0.0f, 0);
+ if (job->job.progress_total) {
+ progress = (float)job->job.progress_current /
+ job->job.progress_total * 100.f;
+ }
+ qemu_progress_print(progress, 0);
} while (!job_is_ready(&job->job) && !job_is_completed(&job->job));
if (!job_is_completed(&job->job)) {
--
1.8.3.1
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