Error *local_err = NULL;
int ret;
- drv = bdrv_find_protocol(filename, true);
+ drv = bdrv_find_protocol(filename, true, errp);
if (drv == NULL) {
- error_setg(errp, "Could not find protocol for file '%s'", filename);
return -ENOENT;
}
}
BlockDriver *bdrv_find_protocol(const char *filename,
- bool allow_protocol_prefix)
+ bool allow_protocol_prefix,
+ Error **errp)
{
BlockDriver *drv1;
char protocol[128];
return drv1;
}
}
+
+ error_setg(errp, "Unknown protocol '%s'", protocol);
return NULL;
}
bs->zero_beyond_eof = true;
open_flags = bdrv_open_flags(bs, flags);
bs->read_only = !(open_flags & BDRV_O_RDWR);
- bs->growable = !!(flags & BDRV_O_PROTOCOL);
if (use_bdrv_whitelist && !bdrv_is_whitelisted(drv, bs->read_only)) {
error_setg(errp,
} else {
if (!drvname && protocol) {
if (filename) {
- drv = bdrv_find_protocol(filename, parse_filename);
+ drv = bdrv_find_protocol(filename, parse_filename, errp);
if (!drv) {
- error_setg(errp, "Unknown protocol");
return -EINVAL;
}
opts = qemu_opts_create(bdrv_qcow2.create_opts, NULL, 0,
&error_abort);
- qemu_opt_set_number(opts, BLOCK_OPT_SIZE, total_size);
+ qemu_opt_set_number(opts, BLOCK_OPT_SIZE, total_size, &error_abort);
ret = bdrv_create(&bdrv_qcow2, tmp_filename, opts, &local_err);
qemu_opts_del(opts);
if (ret < 0) {
bs->encrypted = 0;
bs->valid_key = 0;
bs->sg = 0;
- bs->growable = 0;
bs->zero_beyond_eof = false;
QDECREF(bs->options);
bs->options = NULL;
static int bdrv_check_byte_request(BlockDriverState *bs, int64_t offset,
size_t size)
{
- int64_t len;
-
if (size > BDRV_REQUEST_MAX_SECTORS << BDRV_SECTOR_BITS) {
return -EIO;
}
- if (!bdrv_is_inserted(bs))
+ if (!bdrv_is_inserted(bs)) {
return -ENOMEDIUM;
+ }
- if (bs->growable)
- return 0;
-
- len = bdrv_getlength(bs);
-
- if (offset < 0)
- return -EIO;
-
- if ((offset > len) || (len - offset < size))
+ if (offset < 0) {
return -EIO;
+ }
return 0;
}
}
/* Forward the request to the BlockDriver */
- if (!(bs->zero_beyond_eof && bs->growable)) {
+ if (!bs->zero_beyond_eof) {
ret = drv->bdrv_co_readv(bs, sector_num, nb_sectors, qiov);
} else {
- /* Read zeros after EOF of growable BDSes */
+ /* Read zeros after EOF */
int64_t total_sectors, max_nb_sectors;
total_sectors = bdrv_nb_sectors(bs);
if (!drv) {
return -ENOMEDIUM;
}
- if (bdrv_check_byte_request(bs, offset, bytes)) {
- return -EIO;
+
+ ret = bdrv_check_byte_request(bs, offset, bytes);
+ if (ret < 0) {
+ return ret;
}
if (bs->copy_on_read) {
block_acct_highest_sector(&bs->stats, sector_num, nb_sectors);
- if (bs->growable && ret >= 0) {
+ if (ret >= 0) {
bs->total_sectors = MAX(bs->total_sectors, sector_num + nb_sectors);
}
if (bs->read_only) {
return -EACCES;
}
- if (bdrv_check_byte_request(bs, offset, bytes)) {
- return -EIO;
+
+ ret = bdrv_check_byte_request(bs, offset, bytes);
+ if (ret < 0) {
+ return ret;
}
/* throttling disk I/O */
const uint8_t *buf, int nb_sectors)
{
BlockDriver *drv = bs->drv;
- if (!drv)
+ int ret;
+
+ if (!drv) {
return -ENOMEDIUM;
- if (!drv->bdrv_write_compressed)
+ }
+ if (!drv->bdrv_write_compressed) {
return -ENOTSUP;
- if (bdrv_check_request(bs, sector_num, nb_sectors))
- return -EIO;
+ }
+ ret = bdrv_check_request(bs, sector_num, nb_sectors);
+ if (ret < 0) {
+ return ret;
+ }
assert(QLIST_EMPTY(&bs->dirty_bitmaps));
int coroutine_fn bdrv_co_discard(BlockDriverState *bs, int64_t sector_num,
int nb_sectors)
{
- int max_discard;
+ int max_discard, ret;
if (!bs->drv) {
return -ENOMEDIUM;
- } else if (bdrv_check_request(bs, sector_num, nb_sectors)) {
- return -EIO;
+ }
+
+ ret = bdrv_check_request(bs, sector_num, nb_sectors);
+ if (ret < 0) {
+ return ret;
} else if (bs->read_only) {
return -EROFS;
}
return;
}
- proto_drv = bdrv_find_protocol(filename, true);
+ proto_drv = bdrv_find_protocol(filename, true, errp);
if (!proto_drv) {
- error_setg(errp, "Unknown protocol '%s'", filename);
return;
}
/* Create parameter list with default values */
opts = qemu_opts_create(create_opts, NULL, 0, &error_abort);
- qemu_opt_set_number(opts, BLOCK_OPT_SIZE, img_size);
+ qemu_opt_set_number(opts, BLOCK_OPT_SIZE, img_size, &error_abort);
/* Parse -o options */
if (options) {
- if (qemu_opts_do_parse(opts, options, NULL) != 0) {
+ qemu_opts_do_parse(opts, options, NULL, &local_err);
+ if (local_err) {
+ error_report_err(local_err);
+ local_err = NULL;
error_setg(errp, "Invalid options for file format '%s'", fmt);
goto out;
}
}
if (base_filename) {
- if (qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, base_filename)) {
+ qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, base_filename, &local_err);
+ if (local_err) {
error_setg(errp, "Backing file not supported for file format '%s'",
fmt);
goto out;
}
if (base_fmt) {
- if (qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, base_fmt)) {
+ qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, base_fmt, &local_err);
+ if (local_err) {
error_setg(errp, "Backing file format not supported for file "
"format '%s'", fmt);
goto out;
goto out;
}
- qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size);
+ qemu_opt_set_number(opts, BLOCK_OPT_SIZE, size, &error_abort);
bdrv_unref(bs);
} else {