diff options
Diffstat (limited to 'block/mirror.c')
| -rw-r--r-- | block/mirror.c | 53 |
1 files changed, 20 insertions, 33 deletions
diff --git a/block/mirror.c b/block/mirror.c index 405616422b..58f391a6d6 100644 --- a/block/mirror.c +++ b/block/mirror.c @@ -125,11 +125,9 @@ static void mirror_write_complete(void *opaque, int ret) MirrorOp *op = opaque; MirrorBlockJob *s = op->s; if (ret < 0) { - BlockDriverState *source = s->common.bs; BlockErrorAction action; - bdrv_set_dirty_bitmap(source, s->dirty_bitmap, op->sector_num, - op->nb_sectors); + bdrv_set_dirty_bitmap(s->dirty_bitmap, op->sector_num, op->nb_sectors); action = mirror_error_action(s, false, -ret); if (action == BLOCK_ERROR_ACTION_REPORT && s->ret >= 0) { s->ret = ret; @@ -143,11 +141,9 @@ static void mirror_read_complete(void *opaque, int ret) MirrorOp *op = opaque; MirrorBlockJob *s = op->s; if (ret < 0) { - BlockDriverState *source = s->common.bs; BlockErrorAction action; - bdrv_set_dirty_bitmap(source, s->dirty_bitmap, op->sector_num, - op->nb_sectors); + bdrv_set_dirty_bitmap(s->dirty_bitmap, op->sector_num, op->nb_sectors); action = mirror_error_action(s, true, -ret); if (action == BLOCK_ERROR_ACTION_REPORT && s->ret >= 0) { s->ret = ret; @@ -170,10 +166,9 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s) s->sector_num = hbitmap_iter_next(&s->hbi); if (s->sector_num < 0) { - bdrv_dirty_iter_init(source, s->dirty_bitmap, &s->hbi); + bdrv_dirty_iter_init(s->dirty_bitmap, &s->hbi); s->sector_num = hbitmap_iter_next(&s->hbi); - trace_mirror_restart_iter(s, - bdrv_get_dirty_count(source, s->dirty_bitmap)); + trace_mirror_restart_iter(s, bdrv_get_dirty_count(s->dirty_bitmap)); assert(s->sector_num >= 0); } @@ -288,8 +283,7 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s) next_sector += sectors_per_chunk; } - bdrv_reset_dirty_bitmap(source, s->dirty_bitmap, sector_num, - nb_sectors); + bdrv_reset_dirty_bitmap(s->dirty_bitmap, sector_num, nb_sectors); /* Copy the dirty cluster. */ s->in_flight++; @@ -446,7 +440,7 @@ static void coroutine_fn mirror_run(void *opaque) assert(n > 0); if (ret == 1) { - bdrv_set_dirty_bitmap(bs, s->dirty_bitmap, sector_num, n); + bdrv_set_dirty_bitmap(s->dirty_bitmap, sector_num, n); sector_num = next; } else { sector_num += n; @@ -454,7 +448,7 @@ static void coroutine_fn mirror_run(void *opaque) } } - bdrv_dirty_iter_init(bs, s->dirty_bitmap, &s->hbi); + bdrv_dirty_iter_init(s->dirty_bitmap, &s->hbi); last_pause_ns = qemu_clock_get_ns(QEMU_CLOCK_REALTIME); for (;;) { uint64_t delay_ns = 0; @@ -466,7 +460,7 @@ static void coroutine_fn mirror_run(void *opaque) goto immediate_exit; } - cnt = bdrv_get_dirty_count(bs, s->dirty_bitmap); + 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 * s->sectors_in_flight is the number of sectors currently being @@ -475,7 +469,7 @@ static void coroutine_fn mirror_run(void *opaque) (cnt + s->sectors_in_flight) * BDRV_SECTOR_SIZE; /* Note that even when no rate limit is applied we need to yield - * periodically with no pending I/O so that qemu_aio_flush() returns. + * periodically with no pending I/O so that bdrv_drain_all() returns. * We do so every SLICE_TIME nanoseconds, or when there is an error, * or when the source is clean, whichever comes first. */ @@ -488,9 +482,6 @@ static void coroutine_fn mirror_run(void *opaque) continue; } else if (cnt != 0) { delay_ns = mirror_iteration(s); - if (delay_ns == 0) { - continue; - } } } @@ -516,7 +507,7 @@ static void coroutine_fn mirror_run(void *opaque) should_complete = s->should_complete || block_job_is_cancelled(&s->common); - cnt = bdrv_get_dirty_count(bs, s->dirty_bitmap); + cnt = bdrv_get_dirty_count(s->dirty_bitmap); } } @@ -531,7 +522,7 @@ static void coroutine_fn mirror_run(void *opaque) */ trace_mirror_before_drain(s, cnt); bdrv_drain(bs); - cnt = bdrv_get_dirty_count(bs, s->dirty_bitmap); + cnt = bdrv_get_dirty_count(s->dirty_bitmap); } ret = 0; @@ -634,7 +625,7 @@ static void mirror_complete(BlockJob *job, Error **errp) } s->should_complete = true; - block_job_resume(job); + block_job_enter(&s->common); } static const BlockJobDriver mirror_job_driver = { @@ -656,7 +647,7 @@ static const BlockJobDriver commit_active_job_driver = { static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, const char *replaces, - int64_t speed, int64_t granularity, + int64_t speed, uint32_t granularity, int64_t buf_size, BlockdevOnError on_source_error, BlockdevOnError on_target_error, @@ -668,15 +659,7 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, MirrorBlockJob *s; if (granularity == 0) { - /* Choose the default granularity based on the target file's cluster - * size, clamped between 4k and 64k. */ - BlockDriverInfo bdi; - if (bdrv_get_info(target, &bdi) >= 0 && bdi.cluster_size != 0) { - granularity = MAX(4096, bdi.cluster_size); - granularity = MIN(65536, granularity); - } else { - granularity = 65536; - } + granularity = bdrv_get_default_bitmap_granularity(target); } assert ((granularity & (granularity - 1)) == 0); @@ -703,7 +686,7 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, s->granularity = granularity; s->buf_size = MAX(buf_size, granularity); - s->dirty_bitmap = bdrv_create_dirty_bitmap(bs, granularity, errp); + s->dirty_bitmap = bdrv_create_dirty_bitmap(bs, granularity, NULL, errp); if (!s->dirty_bitmap) { return; } @@ -717,7 +700,7 @@ static void mirror_start_job(BlockDriverState *bs, BlockDriverState *target, void mirror_start(BlockDriverState *bs, BlockDriverState *target, const char *replaces, - int64_t speed, int64_t granularity, int64_t buf_size, + int64_t speed, uint32_t granularity, int64_t buf_size, MirrorSyncMode mode, BlockdevOnError on_source_error, BlockdevOnError on_target_error, BlockCompletionFunc *cb, @@ -726,6 +709,10 @@ void mirror_start(BlockDriverState *bs, BlockDriverState *target, bool is_none_mode; BlockDriverState *base; + if (mode == MIRROR_SYNC_MODE_DIRTY_BITMAP) { + error_setg(errp, "Sync mode 'dirty-bitmap' not supported"); + return; + } is_none_mode = mode == MIRROR_SYNC_MODE_NONE; base = mode == MIRROR_SYNC_MODE_TOP ? bs->backing_hd : NULL; mirror_start_job(bs, target, replaces, |