mirror: Rewrite mirror_iteration
The "pnum < nb_sectors" condition in deciding whether to actually copy data is unnecessarily strict, and the qiov initialization is unnecessarily for bdrv_aio_write_zeroes and bdrv_aio_discard. Rewrite mirror_iteration to fix both flaws. The output of iotests 109 is updated because we now report the offset and len slightly differently in mirroring progress. Signed-off-by: Fam Zheng <famz@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Message-id: 1454637630-10585-2-git-send-email-famz@redhat.com Signed-off-by: Jeff Cody <jcody@redhat.com>
This commit is contained in:
parent
04a3615860
commit
e5b43573e2
325
block/mirror.c
325
block/mirror.c
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@ -47,7 +47,6 @@ typedef struct MirrorBlockJob {
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BlockdevOnError on_source_error, on_target_error;
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bool synced;
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bool should_complete;
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int64_t sector_num;
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int64_t granularity;
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size_t buf_size;
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int64_t bdev_length;
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@ -64,6 +63,8 @@ typedef struct MirrorBlockJob {
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int ret;
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bool unmap;
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bool waiting_for_io;
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int target_cluster_sectors;
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int max_iov;
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} MirrorBlockJob;
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typedef struct MirrorOp {
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@ -159,116 +160,79 @@ static void mirror_read_complete(void *opaque, int ret)
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mirror_write_complete, op);
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}
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static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)
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/* Round sector_num and/or nb_sectors to target cluster if COW is needed, and
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* return the offset of the adjusted tail sector against original. */
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static int mirror_cow_align(MirrorBlockJob *s,
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int64_t *sector_num,
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int *nb_sectors)
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{
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BlockDriverState *source = s->common.bs;
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int nb_sectors, sectors_per_chunk, nb_chunks, max_iov;
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int64_t end, sector_num, next_chunk, next_sector, hbitmap_next_sector;
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uint64_t delay_ns = 0;
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MirrorOp *op;
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int pnum;
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int64_t ret;
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BlockDriverState *file;
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bool need_cow;
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int ret = 0;
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int chunk_sectors = s->granularity >> BDRV_SECTOR_BITS;
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int64_t align_sector_num = *sector_num;
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int align_nb_sectors = *nb_sectors;
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int max_sectors = chunk_sectors * s->max_iov;
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max_iov = MIN(source->bl.max_iov, s->target->bl.max_iov);
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s->sector_num = hbitmap_iter_next(&s->hbi);
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if (s->sector_num < 0) {
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bdrv_dirty_iter_init(s->dirty_bitmap, &s->hbi);
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s->sector_num = hbitmap_iter_next(&s->hbi);
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trace_mirror_restart_iter(s, bdrv_get_dirty_count(s->dirty_bitmap));
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assert(s->sector_num >= 0);
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need_cow = !test_bit(*sector_num / chunk_sectors, s->cow_bitmap);
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need_cow |= !test_bit((*sector_num + *nb_sectors - 1) / chunk_sectors,
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s->cow_bitmap);
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if (need_cow) {
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bdrv_round_to_clusters(s->target, *sector_num, *nb_sectors,
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&align_sector_num, &align_nb_sectors);
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}
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hbitmap_next_sector = s->sector_num;
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sector_num = s->sector_num;
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sectors_per_chunk = s->granularity >> BDRV_SECTOR_BITS;
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end = s->bdev_length / BDRV_SECTOR_SIZE;
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if (align_nb_sectors > max_sectors) {
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align_nb_sectors = max_sectors;
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if (need_cow) {
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align_nb_sectors = QEMU_ALIGN_DOWN(align_nb_sectors,
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s->target_cluster_sectors);
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}
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}
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/* Extend the QEMUIOVector to include all adjacent blocks that will
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* be copied in this operation.
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*
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* We have to do this if we have no backing file yet in the destination,
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* and the cluster size is very large. Then we need to do COW ourselves.
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* The first time a cluster is copied, copy it entirely. Note that,
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* because both the granularity and the cluster size are powers of two,
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* the number of sectors to copy cannot exceed one cluster.
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*
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* We also want to extend the QEMUIOVector to include more adjacent
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* dirty blocks if possible, to limit the number of I/O operations and
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* run efficiently even with a small granularity.
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ret = align_sector_num + align_nb_sectors - (*sector_num + *nb_sectors);
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*sector_num = align_sector_num;
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*nb_sectors = align_nb_sectors;
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assert(ret >= 0);
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return ret;
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}
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/* Submit async read while handling COW.
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* Returns: nb_sectors if no alignment is necessary, or
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* (new_end - sector_num) if tail is rounded up or down due to
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* alignment or buffer limit.
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*/
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nb_chunks = 0;
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nb_sectors = 0;
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next_sector = sector_num;
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next_chunk = sector_num / sectors_per_chunk;
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static int mirror_do_read(MirrorBlockJob *s, int64_t sector_num,
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int nb_sectors)
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{
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BlockDriverState *source = s->common.bs;
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int sectors_per_chunk, nb_chunks;
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int ret = nb_sectors;
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MirrorOp *op;
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/* Wait for I/O to this cluster (from a previous iteration) to be done. */
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while (test_bit(next_chunk, s->in_flight_bitmap)) {
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sectors_per_chunk = s->granularity >> BDRV_SECTOR_BITS;
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/* We can only handle as much as buf_size at a time. */
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nb_sectors = MIN(s->buf_size >> BDRV_SECTOR_BITS, nb_sectors);
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assert(nb_sectors);
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if (s->cow_bitmap) {
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ret += mirror_cow_align(s, §or_num, &nb_sectors);
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}
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assert(nb_sectors << BDRV_SECTOR_BITS <= s->buf_size);
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/* The sector range must meet granularity because:
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* 1) Caller passes in aligned values;
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* 2) mirror_cow_align is used only when target cluster is larger. */
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assert(!(nb_sectors % sectors_per_chunk));
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assert(!(sector_num % sectors_per_chunk));
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nb_chunks = nb_sectors / sectors_per_chunk;
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while (s->buf_free_count < nb_chunks) {
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trace_mirror_yield_in_flight(s, sector_num, s->in_flight);
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s->waiting_for_io = true;
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qemu_coroutine_yield();
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s->waiting_for_io = false;
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}
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do {
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int added_sectors, added_chunks;
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if (!bdrv_get_dirty(source, s->dirty_bitmap, next_sector) ||
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test_bit(next_chunk, s->in_flight_bitmap)) {
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assert(nb_sectors > 0);
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break;
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}
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added_sectors = sectors_per_chunk;
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if (s->cow_bitmap && !test_bit(next_chunk, s->cow_bitmap)) {
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bdrv_round_to_clusters(s->target,
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next_sector, added_sectors,
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&next_sector, &added_sectors);
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/* On the first iteration, the rounding may make us copy
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* sectors before the first dirty one.
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*/
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if (next_sector < sector_num) {
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assert(nb_sectors == 0);
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sector_num = next_sector;
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next_chunk = next_sector / sectors_per_chunk;
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}
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}
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added_sectors = MIN(added_sectors, end - (sector_num + nb_sectors));
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added_chunks = (added_sectors + sectors_per_chunk - 1) / sectors_per_chunk;
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/* When doing COW, it may happen that there is not enough space for
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* a full cluster. Wait if that is the case.
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*/
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while (nb_chunks == 0 && s->buf_free_count < added_chunks) {
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trace_mirror_yield_buf_busy(s, nb_chunks, s->in_flight);
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s->waiting_for_io = true;
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qemu_coroutine_yield();
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s->waiting_for_io = false;
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}
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if (s->buf_free_count < nb_chunks + added_chunks) {
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trace_mirror_break_buf_busy(s, nb_chunks, s->in_flight);
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break;
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}
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if (max_iov < nb_chunks + added_chunks) {
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trace_mirror_break_iov_max(s, nb_chunks, added_chunks);
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break;
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}
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/* We have enough free space to copy these sectors. */
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bitmap_set(s->in_flight_bitmap, next_chunk, added_chunks);
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nb_sectors += added_sectors;
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nb_chunks += added_chunks;
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next_sector += added_sectors;
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next_chunk += added_chunks;
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if (!s->synced && s->common.speed) {
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delay_ns = ratelimit_calculate_delay(&s->limit, added_sectors);
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}
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} while (delay_ns == 0 && next_sector < end);
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/* Allocate a MirrorOp that is used as an AIO callback. */
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op = g_new(MirrorOp, 1);
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op->s = s;
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@ -279,47 +243,153 @@ static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)
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* from s->buf_free.
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*/
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qemu_iovec_init(&op->qiov, nb_chunks);
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next_sector = sector_num;
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while (nb_chunks-- > 0) {
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MirrorBuffer *buf = QSIMPLEQ_FIRST(&s->buf_free);
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size_t remaining = (nb_sectors * BDRV_SECTOR_SIZE) - op->qiov.size;
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size_t remaining = nb_sectors * BDRV_SECTOR_SIZE - op->qiov.size;
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QSIMPLEQ_REMOVE_HEAD(&s->buf_free, next);
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s->buf_free_count--;
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qemu_iovec_add(&op->qiov, buf, MIN(s->granularity, remaining));
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/* Advance the HBitmapIter in parallel, so that we do not examine
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* the same sector twice.
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*/
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if (next_sector > hbitmap_next_sector
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&& bdrv_get_dirty(source, s->dirty_bitmap, next_sector)) {
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hbitmap_next_sector = hbitmap_iter_next(&s->hbi);
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}
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next_sector += sectors_per_chunk;
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}
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bdrv_reset_dirty_bitmap(s->dirty_bitmap, sector_num, nb_sectors);
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/* Copy the dirty cluster. */
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s->in_flight++;
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s->sectors_in_flight += nb_sectors;
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trace_mirror_one_iteration(s, sector_num, nb_sectors);
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ret = bdrv_get_block_status_above(source, NULL, sector_num,
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nb_sectors, &pnum, &file);
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if (ret < 0 || pnum < nb_sectors ||
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(ret & BDRV_BLOCK_DATA && !(ret & BDRV_BLOCK_ZERO))) {
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bdrv_aio_readv(source, sector_num, &op->qiov, nb_sectors,
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mirror_read_complete, op);
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} else if (ret & BDRV_BLOCK_ZERO) {
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return ret;
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}
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static void mirror_do_zero_or_discard(MirrorBlockJob *s,
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int64_t sector_num,
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int nb_sectors,
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bool is_discard)
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{
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MirrorOp *op;
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/* Allocate a MirrorOp that is used as an AIO callback. The qiov is zeroed
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* so the freeing in mirror_iteration_done is nop. */
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op = g_new0(MirrorOp, 1);
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op->s = s;
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op->sector_num = sector_num;
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op->nb_sectors = nb_sectors;
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s->in_flight++;
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s->sectors_in_flight += nb_sectors;
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if (is_discard) {
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bdrv_aio_discard(s->target, sector_num, op->nb_sectors,
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mirror_write_complete, op);
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} else {
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bdrv_aio_write_zeroes(s->target, sector_num, op->nb_sectors,
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s->unmap ? BDRV_REQ_MAY_UNMAP : 0,
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mirror_write_complete, op);
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}
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}
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static uint64_t coroutine_fn mirror_iteration(MirrorBlockJob *s)
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{
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BlockDriverState *source = s->common.bs;
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int64_t sector_num;
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uint64_t delay_ns = 0;
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/* At least the first dirty chunk is mirrored in one iteration. */
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int nb_chunks = 1;
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int64_t end = s->bdev_length / BDRV_SECTOR_SIZE;
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int sectors_per_chunk = s->granularity >> BDRV_SECTOR_BITS;
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sector_num = hbitmap_iter_next(&s->hbi);
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if (sector_num < 0) {
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bdrv_dirty_iter_init(s->dirty_bitmap, &s->hbi);
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sector_num = hbitmap_iter_next(&s->hbi);
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trace_mirror_restart_iter(s, bdrv_get_dirty_count(s->dirty_bitmap));
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assert(sector_num >= 0);
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}
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/* Find the number of consective dirty chunks following the first dirty
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* one, and wait for in flight requests in them. */
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while (nb_chunks * sectors_per_chunk < (s->buf_size >> BDRV_SECTOR_BITS)) {
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int64_t hbitmap_next;
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int64_t next_sector = sector_num + nb_chunks * sectors_per_chunk;
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int64_t next_chunk = next_sector / sectors_per_chunk;
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if (next_sector >= end ||
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!bdrv_get_dirty(source, s->dirty_bitmap, next_sector)) {
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break;
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}
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if (test_bit(next_chunk, s->in_flight_bitmap)) {
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if (nb_chunks > 0) {
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break;
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}
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trace_mirror_yield_in_flight(s, next_sector, s->in_flight);
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s->waiting_for_io = true;
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qemu_coroutine_yield();
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s->waiting_for_io = false;
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/* Now retry. */
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} else {
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assert(!(ret & BDRV_BLOCK_DATA));
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bdrv_aio_discard(s->target, sector_num, op->nb_sectors,
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mirror_write_complete, op);
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hbitmap_next = hbitmap_iter_next(&s->hbi);
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assert(hbitmap_next == next_sector);
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nb_chunks++;
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}
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}
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/* Clear dirty bits before querying the block status, because
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* calling bdrv_get_block_status_above could yield - if some blocks are
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* marked dirty in this window, we need to know.
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*/
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bdrv_reset_dirty_bitmap(s->dirty_bitmap, sector_num,
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nb_chunks * sectors_per_chunk);
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bitmap_set(s->in_flight_bitmap, sector_num / sectors_per_chunk, nb_chunks);
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while (nb_chunks > 0 && sector_num < end) {
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int ret;
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int io_sectors;
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BlockDriverState *file;
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enum MirrorMethod {
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MIRROR_METHOD_COPY,
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MIRROR_METHOD_ZERO,
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MIRROR_METHOD_DISCARD
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} mirror_method = MIRROR_METHOD_COPY;
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assert(!(sector_num % sectors_per_chunk));
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ret = bdrv_get_block_status_above(source, NULL, sector_num,
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nb_chunks * sectors_per_chunk,
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&io_sectors, &file);
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if (ret < 0) {
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io_sectors = nb_chunks * sectors_per_chunk;
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}
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io_sectors -= io_sectors % sectors_per_chunk;
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if (io_sectors < sectors_per_chunk) {
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io_sectors = sectors_per_chunk;
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} else if (ret >= 0 && !(ret & BDRV_BLOCK_DATA)) {
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int64_t target_sector_num;
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int target_nb_sectors;
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bdrv_round_to_clusters(s->target, sector_num, io_sectors,
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&target_sector_num, &target_nb_sectors);
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if (target_sector_num == sector_num &&
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target_nb_sectors == io_sectors) {
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mirror_method = ret & BDRV_BLOCK_ZERO ?
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MIRROR_METHOD_ZERO :
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MIRROR_METHOD_DISCARD;
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}
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}
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switch (mirror_method) {
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case MIRROR_METHOD_COPY:
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io_sectors = mirror_do_read(s, sector_num, io_sectors);
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break;
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case MIRROR_METHOD_ZERO:
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mirror_do_zero_or_discard(s, sector_num, io_sectors, false);
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break;
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case MIRROR_METHOD_DISCARD:
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mirror_do_zero_or_discard(s, sector_num, io_sectors, true);
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break;
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default:
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abort();
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}
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assert(io_sectors);
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sector_num += io_sectors;
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nb_chunks -= io_sectors / sectors_per_chunk;
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delay_ns += ratelimit_calculate_delay(&s->limit, io_sectors);
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}
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return delay_ns;
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}
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@ -420,6 +490,7 @@ static void coroutine_fn mirror_run(void *opaque)
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checking for a NULL string */
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int ret = 0;
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int n;
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int target_cluster_size = BDRV_SECTOR_SIZE;
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if (block_job_is_cancelled(&s->common)) {
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goto immediate_exit;
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@ -449,16 +520,16 @@ static void coroutine_fn mirror_run(void *opaque)
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*/
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bdrv_get_backing_filename(s->target, backing_filename,
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sizeof(backing_filename));
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if (backing_filename[0] && !s->target->backing) {
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ret = bdrv_get_info(s->target, &bdi);
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if (ret < 0) {
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goto immediate_exit;
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if (!bdrv_get_info(s->target, &bdi) && bdi.cluster_size) {
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target_cluster_size = bdi.cluster_size;
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}
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if (s->granularity < bdi.cluster_size) {
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s->buf_size = MAX(s->buf_size, bdi.cluster_size);
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if (backing_filename[0] && !s->target->backing
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&& s->granularity < target_cluster_size) {
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s->buf_size = MAX(s->buf_size, target_cluster_size);
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s->cow_bitmap = bitmap_new(length);
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}
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}
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s->target_cluster_sectors = target_cluster_size >> BDRV_SECTOR_BITS;
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s->max_iov = MIN(s->common.bs->bl.max_iov, s->target->bl.max_iov);
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||||
end = s->bdev_length / BDRV_SECTOR_SIZE;
|
||||
s->buf = qemu_try_blockalign(bs, s->buf_size);
|
||||
|
|
|
@ -10,14 +10,14 @@ Automatically detecting the format is dangerous for raw images, write operations
|
|||
Specify the 'raw' format explicitly to remove the restrictions.
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": "report"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 1024, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 65536, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"return": []}
|
||||
read 65536/65536 bytes at offset 0
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 1024, "offset": 1024, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 1024, "offset": 1024, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 65536, "offset": 65536, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 65536, "offset": 65536, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
Warning: Image size mismatch!
|
||||
Images are identical.
|
||||
|
||||
|
@ -31,14 +31,14 @@ Automatically detecting the format is dangerous for raw images, write operations
|
|||
Specify the 'raw' format explicitly to remove the restrictions.
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": "report"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 197120, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 262144, "offset": 65536, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"return": []}
|
||||
read 65536/65536 bytes at offset 0
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 197120, "offset": 197120, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 197120, "offset": 197120, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 262144, "offset": 262144, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 262144, "offset": 262144, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
Warning: Image size mismatch!
|
||||
Images are identical.
|
||||
|
||||
|
@ -52,7 +52,7 @@ Automatically detecting the format is dangerous for raw images, write operations
|
|||
Specify the 'raw' format explicitly to remove the restrictions.
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": "report"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 327680, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 327680, "offset": 262144, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"return": []}
|
||||
read 65536/65536 bytes at offset 0
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
|
@ -73,14 +73,14 @@ Automatically detecting the format is dangerous for raw images, write operations
|
|||
Specify the 'raw' format explicitly to remove the restrictions.
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": "report"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 1024, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 65536, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"return": []}
|
||||
read 65536/65536 bytes at offset 0
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 1024, "offset": 1024, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 1024, "offset": 1024, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 65536, "offset": 65536, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 65536, "offset": 65536, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
Warning: Image size mismatch!
|
||||
Images are identical.
|
||||
|
||||
|
@ -115,14 +115,14 @@ Automatically detecting the format is dangerous for raw images, write operations
|
|||
Specify the 'raw' format explicitly to remove the restrictions.
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": "report"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 2560, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 65536, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"return": []}
|
||||
read 65536/65536 bytes at offset 0
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 2560, "offset": 2560, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 2560, "offset": 2560, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 65536, "offset": 65536, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 65536, "offset": 65536, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
Warning: Image size mismatch!
|
||||
Images are identical.
|
||||
|
||||
|
@ -135,14 +135,14 @@ Automatically detecting the format is dangerous for raw images, write operations
|
|||
Specify the 'raw' format explicitly to remove the restrictions.
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": "report"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 2560, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 65536, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"return": []}
|
||||
read 65536/65536 bytes at offset 0
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 2560, "offset": 2560, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 2560, "offset": 2560, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 65536, "offset": 65536, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 65536, "offset": 65536, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
Image resized.
|
||||
Warning: Image size mismatch!
|
||||
Images are identical.
|
||||
|
@ -198,14 +198,14 @@ Automatically detecting the format is dangerous for raw images, write operations
|
|||
Specify the 'raw' format explicitly to remove the restrictions.
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_ERROR", "data": {"device": "src", "operation": "write", "action": "report"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 2048, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_COMPLETED", "data": {"device": "src", "len": 65536, "offset": 0, "speed": 0, "type": "mirror", "error": "Operation not permitted"}}
|
||||
{"return": []}
|
||||
read 65536/65536 bytes at offset 0
|
||||
64 KiB, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 2048, "offset": 2048, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 2048, "offset": 2048, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 65536, "offset": 65536, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 65536, "offset": 65536, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
Image resized.
|
||||
Warning: Image size mismatch!
|
||||
Images are identical.
|
||||
|
@ -218,14 +218,14 @@ WARNING: Image format was not specified for 'TEST_DIR/t.raw' and probing guessed
|
|||
Automatically detecting the format is dangerous for raw images, write operations on block 0 will be restricted.
|
||||
Specify the 'raw' format explicitly to remove the restrictions.
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 512, "offset": 512, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 512, "offset": 512, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 65536, "offset": 65536, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 65536, "offset": 65536, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
Warning: Image size mismatch!
|
||||
Images are identical.
|
||||
{"return": {}}
|
||||
{"return": {}}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 512, "offset": 512, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 512, "offset": 512, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "BLOCK_JOB_READY", "data": {"device": "src", "len": 65536, "offset": 65536, "speed": 0, "type": "mirror"}}
|
||||
{"return": [{"io-status": "ok", "device": "src", "busy": false, "len": 65536, "offset": 65536, "paused": false, "speed": 0, "ready": true, "type": "mirror"}]}
|
||||
Warning: Image size mismatch!
|
||||
Images are identical.
|
||||
*** done
|
||||
|
|
|
@ -97,7 +97,6 @@ mirror_yield(void *s, int64_t cnt, int buf_free_count, int in_flight) "s %p dirt
|
|||
mirror_yield_in_flight(void *s, int64_t sector_num, int in_flight) "s %p sector_num %"PRId64" in_flight %d"
|
||||
mirror_yield_buf_busy(void *s, int nb_chunks, int in_flight) "s %p requested chunks %d in_flight %d"
|
||||
mirror_break_buf_busy(void *s, int nb_chunks, int in_flight) "s %p requested chunks %d in_flight %d"
|
||||
mirror_break_iov_max(void *s, int nb_chunks, int added_chunks) "s %p requested chunks %d added_chunks %d"
|
||||
|
||||
# block/backup.c
|
||||
backup_do_cow_enter(void *job, int64_t start, int64_t sector_num, int nb_sectors) "job %p start %"PRId64" sector_num %"PRId64" nb_sectors %d"
|
||||
|
|
Loading…
Reference in a new issue