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job: Move progress fields to Job

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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>
This commit is contained in:
Kevin Wolf 2018-05-04 12:17:20 +02:00
parent 2e1795b581
commit 30a5c887bf
9 changed files with 62 additions and 55 deletions
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8
block/backup.c
View File

@ -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) {

4
block/commit.c
View File

@ -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);

4
block/mirror.c
View File

@ -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.

4
block/stream.c
View File

@ -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 {

26
blockjob.c
View File

@ -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);
}

25
include/block/blockjob.h
View File

@ -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;
@ -138,25 +132,6 @@ 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.

28
include/qemu/job.h
View File

@ -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);

10
job.c
View File

@ -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);

8
qemu-img.c
View File

@ -863,9 +863,13 @@ 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)) {