diff options
Diffstat (limited to 'block/copy-before-write.c')
| -rw-r--r-- | block/copy-before-write.c | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/block/copy-before-write.c b/block/copy-before-write.c index 235251a640..a7996d54db 100644 --- a/block/copy-before-write.c +++ b/block/copy-before-write.c @@ -37,7 +37,6 @@ typedef struct BDRVCopyBeforeWriteState { BlockCopyState *bcs; BdrvChild *target; - int64_t cluster_size; } BDRVCopyBeforeWriteState; static coroutine_fn int cbw_co_preadv( @@ -52,13 +51,14 @@ static coroutine_fn int cbw_do_copy_before_write(BlockDriverState *bs, { BDRVCopyBeforeWriteState *s = bs->opaque; uint64_t off, end; + int64_t cluster_size = block_copy_cluster_size(s->bcs); if (flags & BDRV_REQ_WRITE_UNCHANGED) { return 0; } - off = QEMU_ALIGN_DOWN(offset, s->cluster_size); - end = QEMU_ALIGN_UP(offset + bytes, s->cluster_size); + off = QEMU_ALIGN_DOWN(offset, cluster_size); + end = QEMU_ALIGN_UP(offset + bytes, cluster_size); return block_copy(s->bcs, off, end - off, true); } @@ -169,7 +169,6 @@ BlockDriver bdrv_cbw_filter = { BlockDriverState *bdrv_cbw_append(BlockDriverState *source, BlockDriverState *target, const char *filter_node_name, - uint64_t cluster_size, bool compress, BlockCopyState **bcs, Error **errp) @@ -214,9 +213,8 @@ BlockDriverState *bdrv_cbw_append(BlockDriverState *source, } appended = true; - state->cluster_size = cluster_size; state->bcs = block_copy_state_new(top->backing, state->target, - cluster_size, false, compress, errp); + false, compress, errp); if (!state->bcs) { error_prepend(errp, "Cannot create block-copy-state: "); goto fail; |