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block/backup: centralize copy_bitmap initialization

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Just a few housekeeping changes that keeps the following commit easier
to read; perform the initial copy_bitmap initialization in one place.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190716000117.25219-8-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
This commit is contained in:
John Snow 2019-07-29 16:35:55 -04:00
parent 0fff1f1371
commit 141cdcdf84
1 changed files with 15 additions and 14 deletions
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29
block/backup.c
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@ -451,16 +451,22 @@ static int coroutine_fn backup_loop(BackupBlockJob *job)
return ret;
}
/* init copy_bitmap from sync_bitmap */
static void backup_incremental_init_copy_bitmap(BackupBlockJob *job)
static void backup_init_copy_bitmap(BackupBlockJob *job)
{
bool ret = bdrv_dirty_bitmap_merge_internal(job->copy_bitmap,
job->sync_bitmap,
NULL, true);
assert(ret);
bool ret;
uint64_t estimate;
job_progress_set_remaining(&job->common.job,
bdrv_get_dirty_count(job->copy_bitmap));
if (job->sync_mode == MIRROR_SYNC_MODE_BITMAP) {
ret = bdrv_dirty_bitmap_merge_internal(job->copy_bitmap,
job->sync_bitmap,
NULL, true);
assert(ret);
} else {
bdrv_set_dirty_bitmap(job->copy_bitmap, 0, job->len);
}
estimate = bdrv_get_dirty_count(job->copy_bitmap);
job_progress_set_remaining(&job->common.job, estimate);
}
static int coroutine_fn backup_run(Job *job, Error **errp)
@ -472,12 +478,7 @@ static int coroutine_fn backup_run(Job *job, Error **errp)
QLIST_INIT(&s->inflight_reqs);
qemu_co_rwlock_init(&s->flush_rwlock);
if (s->sync_mode == MIRROR_SYNC_MODE_BITMAP) {
backup_incremental_init_copy_bitmap(s);
} else {
bdrv_set_dirty_bitmap(s->copy_bitmap, 0, s->len);
job_progress_set_remaining(job, s->len);
}
backup_init_copy_bitmap(s);
s->before_write.notify = backup_before_write_notify;
bdrv_add_before_write_notifier(bs, &s->before_write);