diff options
Diffstat (limited to 'block')
| -rw-r--r-- | block/backup.c | 22 | ||||
| -rw-r--r-- | block/io.c | 12 | ||||
| -rw-r--r-- | block/mirror.c | 43 |
3 files changed, 58 insertions, 19 deletions
diff --git a/block/backup.c b/block/backup.c index feeb9f8..581269b 100644 --- a/block/backup.c +++ b/block/backup.c @@ -246,12 +246,20 @@ static void backup_abort(BlockJob *job) } } +static void backup_attached_aio_context(BlockJob *job, AioContext *aio_context) +{ + BackupBlockJob *s = container_of(job, BackupBlockJob, common); + + blk_set_aio_context(s->target, aio_context); +} + static const BlockJobDriver backup_job_driver = { - .instance_size = sizeof(BackupBlockJob), - .job_type = BLOCK_JOB_TYPE_BACKUP, - .set_speed = backup_set_speed, - .commit = backup_commit, - .abort = backup_abort, + .instance_size = sizeof(BackupBlockJob), + .job_type = BLOCK_JOB_TYPE_BACKUP, + .set_speed = backup_set_speed, + .commit = backup_commit, + .abort = backup_abort, + .attached_aio_context = backup_attached_aio_context, }; static BlockErrorAction backup_error_action(BackupBlockJob *job, @@ -392,9 +400,7 @@ static void coroutine_fn backup_run(void *opaque) while (!block_job_is_cancelled(&job->common)) { /* Yield until the job is cancelled. We just let our before_write * notify callback service CoW requests. */ - job->common.busy = false; - qemu_coroutine_yield(); - job->common.busy = true; + block_job_yield(&job->common); } } else if (job->sync_mode == MIRROR_SYNC_MODE_INCREMENTAL) { ret = backup_run_incremental(job); @@ -2347,9 +2347,13 @@ int coroutine_fn bdrv_co_discard(BlockDriverState *bs, int64_t sector_num, return 0; } - tracked_request_begin(&req, bs, sector_num, nb_sectors, - BDRV_TRACKED_DISCARD); - bdrv_set_dirty(bs, sector_num, nb_sectors); + tracked_request_begin(&req, bs, sector_num << BDRV_SECTOR_BITS, + nb_sectors << BDRV_SECTOR_BITS, BDRV_TRACKED_DISCARD); + + ret = notifier_with_return_list_notify(&bs->before_write_notifiers, &req); + if (ret < 0) { + goto out; + } max_discard = MIN_NON_ZERO(bs->bl.max_discard, BDRV_REQUEST_MAX_SECTORS); while (nb_sectors > 0) { @@ -2398,6 +2402,8 @@ int coroutine_fn bdrv_co_discard(BlockDriverState *bs, int64_t sector_num, } ret = 0; out: + bdrv_set_dirty(bs, req.offset >> BDRV_SECTOR_BITS, + req.bytes >> BDRV_SECTOR_BITS); tracked_request_end(&req); return ret; } diff --git a/block/mirror.c b/block/mirror.c index 075384a..a04ed9c 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -331,6 +331,8 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s) mirror_wait_for_io(s); } + block_job_pause_point(&s->common); + /* Find the number of consective dirty chunks following the first dirty * one, and wait for in flight requests in them. */ while (nb_chunks * sectors_per_chunk < (s->buf_size >> BDRV_SECTOR_BITS)) { @@ -582,6 +584,8 @@ static void coroutine_fn mirror_run(void *opaque) if (now - last_pause_ns > SLICE_TIME) { last_pause_ns = now; block_job_sleep_ns(&s->common, QEMU_CLOCK_REALTIME, 0); + } else { + block_job_pause_point(&s->common); } if (block_job_is_cancelled(&s->common)) { @@ -613,6 +617,8 @@ static void coroutine_fn mirror_run(void *opaque) goto immediate_exit; } + block_job_pause_point(&s->common); + cnt = bdrv_get_dirty_count(s->dirty_bitmap); /* s->common.offset contains the number of bytes already processed so * far, cnt is the number of dirty sectors remaining and @@ -795,18 +801,39 @@ static void mirror_complete(BlockJob *job, Error **errp) block_job_enter(&s->common); } +/* There is no matching mirror_resume() because mirror_run() will begin + * iterating again when the job is resumed. + */ +static void coroutine_fn mirror_pause(BlockJob *job) +{ + MirrorBlockJob *s = container_of(job, MirrorBlockJob, common); + + mirror_drain(s); +} + +static void mirror_attached_aio_context(BlockJob *job, AioContext *new_context) +{ + MirrorBlockJob *s = container_of(job, MirrorBlockJob, common); + + blk_set_aio_context(s->target, new_context); +} + static const BlockJobDriver mirror_job_driver = { - .instance_size = sizeof(MirrorBlockJob), - .job_type = BLOCK_JOB_TYPE_MIRROR, - .set_speed = mirror_set_speed, - .complete = mirror_complete, + .instance_size = sizeof(MirrorBlockJob), + .job_type = BLOCK_JOB_TYPE_MIRROR, + .set_speed = mirror_set_speed, + .complete = mirror_complete, + .pause = mirror_pause, + .attached_aio_context = mirror_attached_aio_context, }; static const BlockJobDriver commit_active_job_driver = { - .instance_size = sizeof(MirrorBlockJob), - .job_type = BLOCK_JOB_TYPE_COMMIT, - .set_speed = mirror_set_speed, - .complete = mirror_complete, + .instance_size = sizeof(MirrorBlockJob), + .job_type = BLOCK_JOB_TYPE_COMMIT, + .set_speed = mirror_set_speed, + .complete = mirror_complete, + .pause = mirror_pause, + .attached_aio_context = mirror_attached_aio_context, }; static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, |