diff options
| -rw-r--r-- | block/backup.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/block/backup.c b/block/backup.c index 083fc189af..2baf7bed65 100644 --- a/block/backup.c +++ b/block/backup.c @@ -50,14 +50,13 @@ typedef struct BackupBlockJob { uint64_t len; uint64_t bytes_read; int64_t cluster_size; - bool compress; NotifierWithReturn before_write; QLIST_HEAD(, CowRequest) inflight_reqs; bool use_copy_range; int64_t copy_range_size; - bool serialize_target_writes; + BdrvRequestFlags write_flags; bool initializing_bitmap; } BackupBlockJob; @@ -113,10 +112,6 @@ static int coroutine_fn backup_cow_with_bounce_buffer(BackupBlockJob *job, BlockBackend *blk = job->common.blk; int nbytes; int read_flags = is_write_notifier ? BDRV_REQ_NO_SERIALISING : 0; - int write_flags = - (job->serialize_target_writes ? BDRV_REQ_SERIALISING : 0) | - (job->compress ? BDRV_REQ_WRITE_COMPRESSED : 0); - assert(QEMU_IS_ALIGNED(start, job->cluster_size)); bdrv_reset_dirty_bitmap(job->copy_bitmap, start, job->cluster_size); @@ -135,7 +130,7 @@ static int coroutine_fn backup_cow_with_bounce_buffer(BackupBlockJob *job, } ret = blk_co_pwrite(job->target, start, nbytes, *bounce_buffer, - write_flags); + job->write_flags); if (ret < 0) { trace_backup_do_cow_write_fail(job, start, ret); if (error_is_read) { @@ -163,7 +158,6 @@ static int coroutine_fn backup_cow_with_offload(BackupBlockJob *job, BlockBackend *blk = job->common.blk; int nbytes; int read_flags = is_write_notifier ? BDRV_REQ_NO_SERIALISING : 0; - int write_flags = job->serialize_target_writes ? BDRV_REQ_SERIALISING : 0; assert(QEMU_IS_ALIGNED(job->copy_range_size, job->cluster_size)); assert(QEMU_IS_ALIGNED(start, job->cluster_size)); @@ -172,7 +166,7 @@ static int coroutine_fn backup_cow_with_offload(BackupBlockJob *job, bdrv_reset_dirty_bitmap(job->copy_bitmap, start, job->cluster_size * nr_clusters); ret = blk_co_copy_range(blk, start, job->target, start, nbytes, - read_flags, write_flags); + read_flags, job->write_flags); if (ret < 0) { trace_backup_do_cow_copy_range_fail(job, start, ret); bdrv_set_dirty_bitmap(job->copy_bitmap, start, @@ -751,10 +745,16 @@ BlockJob *backup_job_create(const char *job_id, BlockDriverState *bs, job->sync_mode = sync_mode; job->sync_bitmap = sync_bitmap; job->bitmap_mode = bitmap_mode; - job->compress = compress; - /* Detect image-fleecing (and similar) schemes */ - job->serialize_target_writes = bdrv_chain_contains(target, bs); + /* + * Set write flags: + * 1. Detect image-fleecing (and similar) schemes + * 2. Handle compression + */ + job->write_flags = + (bdrv_chain_contains(target, bs) ? BDRV_REQ_SERIALISING : 0) | + (compress ? BDRV_REQ_WRITE_COMPRESSED : 0); + job->cluster_size = cluster_size; job->copy_bitmap = copy_bitmap; copy_bitmap = NULL; |