diff options
Diffstat (limited to 'block/qcow2.c')
| -rw-r--r-- | block/qcow2.c | 60 |
1 files changed, 32 insertions, 28 deletions
diff --git a/block/qcow2.c b/block/qcow2.c index 3dd098b74f..071dc4d608 100644 --- a/block/qcow2.c +++ b/block/qcow2.c @@ -1377,7 +1377,7 @@ static int qcow2_do_open(BlockDriverState *bs, QDict *options, int flags, if (s->l1_size > 0) { s->l1_table = qemu_try_blockalign(bs->file->bs, - align_offset(s->l1_size * sizeof(uint64_t), 512)); + ROUND_UP(s->l1_size * sizeof(uint64_t), 512)); if (s->l1_table == NULL) { error_setg(errp, "Could not allocate L1 table"); ret = -ENOMEM; @@ -1668,32 +1668,34 @@ static void qcow2_join_options(QDict *options, QDict *old_options) } } -static int64_t coroutine_fn qcow2_co_get_block_status(BlockDriverState *bs, - int64_t sector_num, int nb_sectors, int *pnum, BlockDriverState **file) +static int coroutine_fn qcow2_co_block_status(BlockDriverState *bs, + bool want_zero, + int64_t offset, int64_t count, + int64_t *pnum, int64_t *map, + BlockDriverState **file) { BDRVQcow2State *s = bs->opaque; uint64_t cluster_offset; int index_in_cluster, ret; unsigned int bytes; - int64_t status = 0; + int status = 0; - bytes = MIN(INT_MAX, nb_sectors * BDRV_SECTOR_SIZE); + bytes = MIN(INT_MAX, count); qemu_co_mutex_lock(&s->lock); - ret = qcow2_get_cluster_offset(bs, sector_num << BDRV_SECTOR_BITS, &bytes, - &cluster_offset); + ret = qcow2_get_cluster_offset(bs, offset, &bytes, &cluster_offset); qemu_co_mutex_unlock(&s->lock); if (ret < 0) { return ret; } - *pnum = bytes >> BDRV_SECTOR_BITS; + *pnum = bytes; if (cluster_offset != 0 && ret != QCOW2_CLUSTER_COMPRESSED && !s->crypto) { - index_in_cluster = sector_num & (s->cluster_sectors - 1); - cluster_offset |= (index_in_cluster << BDRV_SECTOR_BITS); + index_in_cluster = offset & (s->cluster_size - 1); + *map = cluster_offset | index_in_cluster; *file = bs->file->bs; - status |= BDRV_BLOCK_OFFSET_VALID | cluster_offset; + status |= BDRV_BLOCK_OFFSET_VALID; } if (ret == QCOW2_CLUSTER_ZERO_PLAIN || ret == QCOW2_CLUSTER_ZERO_ALLOC) { status |= BDRV_BLOCK_ZERO; @@ -2638,19 +2640,19 @@ static int64_t qcow2_calc_prealloc_size(int64_t total_size, { int64_t meta_size = 0; uint64_t nl1e, nl2e; - int64_t aligned_total_size = align_offset(total_size, cluster_size); + int64_t aligned_total_size = ROUND_UP(total_size, cluster_size); /* header: 1 cluster */ meta_size += cluster_size; /* total size of L2 tables */ nl2e = aligned_total_size / cluster_size; - nl2e = align_offset(nl2e, cluster_size / sizeof(uint64_t)); + nl2e = ROUND_UP(nl2e, cluster_size / sizeof(uint64_t)); meta_size += nl2e * sizeof(uint64_t); /* total size of L1 tables */ nl1e = nl2e * sizeof(uint64_t) / cluster_size; - nl1e = align_offset(nl1e, cluster_size / sizeof(uint64_t)); + nl1e = ROUND_UP(nl1e, cluster_size / sizeof(uint64_t)); meta_size += nl1e * sizeof(uint64_t); /* total size of refcount table and blocks */ @@ -2721,11 +2723,12 @@ static uint64_t qcow2_opt_get_refcount_bits_del(QemuOpts *opts, int version, return refcount_bits; } -static int qcow2_create2(const char *filename, int64_t total_size, - const char *backing_file, const char *backing_format, - int flags, size_t cluster_size, PreallocMode prealloc, - QemuOpts *opts, int version, int refcount_order, - const char *encryptfmt, Error **errp) +static int coroutine_fn +qcow2_co_create2(const char *filename, int64_t total_size, + const char *backing_file, const char *backing_format, + int flags, size_t cluster_size, PreallocMode prealloc, + QemuOpts *opts, int version, int refcount_order, + const char *encryptfmt, Error **errp) { QDict *options; @@ -2912,7 +2915,8 @@ out: return ret; } -static int qcow2_create(const char *filename, QemuOpts *opts, Error **errp) +static int coroutine_fn qcow2_co_create_opts(const char *filename, QemuOpts *opts, + Error **errp) { char *backing_file = NULL; char *backing_fmt = NULL; @@ -2993,9 +2997,9 @@ static int qcow2_create(const char *filename, QemuOpts *opts, Error **errp) refcount_order = ctz32(refcount_bits); - ret = qcow2_create2(filename, size, backing_file, backing_fmt, flags, - cluster_size, prealloc, opts, version, refcount_order, - encryptfmt, &local_err); + ret = qcow2_co_create2(filename, size, backing_file, backing_fmt, flags, + cluster_size, prealloc, opts, version, refcount_order, + encryptfmt, &local_err); error_propagate(errp, local_err); finish: @@ -3704,8 +3708,8 @@ static BlockMeasureInfo *qcow2_measure(QemuOpts *opts, BlockDriverState *in_bs, has_backing_file = !!optstr; g_free(optstr); - virtual_size = align_offset(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0), - cluster_size); + virtual_size = qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0); + virtual_size = ROUND_UP(virtual_size, cluster_size); /* Check that virtual disk size is valid */ l2_tables = DIV_ROUND_UP(virtual_size / cluster_size, @@ -3725,7 +3729,7 @@ static BlockMeasureInfo *qcow2_measure(QemuOpts *opts, BlockDriverState *in_bs, goto err; } - virtual_size = align_offset(ssize, cluster_size); + virtual_size = ROUND_UP(ssize, cluster_size); if (has_backing_file) { /* We don't how much of the backing chain is shared by the input @@ -4348,9 +4352,9 @@ BlockDriver bdrv_qcow2 = { .bdrv_reopen_abort = qcow2_reopen_abort, .bdrv_join_options = qcow2_join_options, .bdrv_child_perm = bdrv_format_default_perms, - .bdrv_create = qcow2_create, + .bdrv_co_create_opts = qcow2_co_create_opts, .bdrv_has_zero_init = bdrv_has_zero_init_1, - .bdrv_co_get_block_status = qcow2_co_get_block_status, + .bdrv_co_block_status = qcow2_co_block_status, .bdrv_co_preadv = qcow2_co_preadv, .bdrv_co_pwritev = qcow2_co_pwritev, |