#include "qemu/osdep.h"
#include "block/throttle-groups.h"
+#include "qemu/module.h"
#include "qemu/option.h"
#include "qemu/throttle-options.h"
#include "qapi/error.h"
{
int ret;
const char *group_name;
- Error *local_err = NULL;
QemuOpts *opts = qemu_opts_create(&throttle_opts, NULL, 0, &error_abort);
- qemu_opts_absorb_qdict(opts, options, &local_err);
- if (local_err) {
- error_propagate(errp, local_err);
+ if (!qemu_opts_absorb_qdict(opts, options, errp)) {
ret = -EINVAL;
goto fin;
}
char *group;
int ret;
- bs->file = bdrv_open_child(NULL, options, "file", bs,
- &child_file, false, errp);
+ bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
+ BDRV_CHILD_FILTERED | BDRV_CHILD_PRIMARY,
+ false, errp);
if (!bs->file) {
return -EINVAL;
}
ThrottleGroupMember *tgm = bs->opaque;
throttle_group_co_io_limits_intercept(tgm, bytes, true);
- return bdrv_co_pdiscard(bs->file->bs, offset, bytes);
+ return bdrv_co_pdiscard(bs->file, offset, bytes);
+}
+
+static int coroutine_fn throttle_co_pwritev_compressed(BlockDriverState *bs,
+ uint64_t offset,
+ uint64_t bytes,
+ QEMUIOVector *qiov)
+{
+ return throttle_co_pwritev(bs, offset, bytes, qiov,
+ BDRV_REQ_WRITE_COMPRESSED);
}
static int throttle_co_flush(BlockDriverState *bs)
reopen_state->opaque = NULL;
}
-static bool throttle_recurse_is_first_non_filter(BlockDriverState *bs,
- BlockDriverState *candidate)
-{
- return bdrv_recurse_is_first_non_filter(bs->file->bs, candidate);
-}
-
static void coroutine_fn throttle_co_drain_begin(BlockDriverState *bs)
{
ThrottleGroupMember *tgm = bs->opaque;
- if (atomic_fetch_inc(&tgm->io_limits_disabled) == 0) {
+ if (qatomic_fetch_inc(&tgm->io_limits_disabled) == 0) {
throttle_group_restart_tgm(tgm);
}
}
{
ThrottleGroupMember *tgm = bs->opaque;
assert(tgm->io_limits_disabled);
- atomic_dec(&tgm->io_limits_disabled);
+ qatomic_dec(&tgm->io_limits_disabled);
}
+static const char *const throttle_strong_runtime_opts[] = {
+ QEMU_OPT_THROTTLE_GROUP_NAME,
+
+ NULL
+};
+
static BlockDriver bdrv_throttle = {
.format_name = "throttle",
.instance_size = sizeof(ThrottleGroupMember),
.bdrv_close = throttle_close,
.bdrv_co_flush = throttle_co_flush,
- .bdrv_child_perm = bdrv_filter_default_perms,
+ .bdrv_child_perm = bdrv_default_perms,
.bdrv_getlength = throttle_getlength,
.bdrv_co_pwrite_zeroes = throttle_co_pwrite_zeroes,
.bdrv_co_pdiscard = throttle_co_pdiscard,
-
- .bdrv_recurse_is_first_non_filter = throttle_recurse_is_first_non_filter,
+ .bdrv_co_pwritev_compressed = throttle_co_pwritev_compressed,
.bdrv_attach_aio_context = throttle_attach_aio_context,
.bdrv_detach_aio_context = throttle_detach_aio_context,
.bdrv_reopen_prepare = throttle_reopen_prepare,
.bdrv_reopen_commit = throttle_reopen_commit,
.bdrv_reopen_abort = throttle_reopen_abort,
- .bdrv_co_block_status = bdrv_co_block_status_from_file,
.bdrv_co_drain_begin = throttle_co_drain_begin,
.bdrv_co_drain_end = throttle_co_drain_end,
.is_filter = true,
+ .strong_runtime_opts = throttle_strong_runtime_opts,
};
static void bdrv_throttle_init(void)