#include "sysemu/arch_init.h"
#include "qemu/cutils.h"
#include "qemu/help_option.h"
+#include "qemu/throttle-options.h"
static QTAILQ_HEAD(, BlockDriverState) monitor_bdrv_states =
QTAILQ_HEAD_INITIALIZER(monitor_bdrv_states);
return NULL;
}
-bool drive_check_orphaned(void)
+void drive_check_orphaned(void)
{
BlockBackend *blk;
DriveInfo *dinfo;
- bool rs = false;
+ Location loc;
+ bool orphans = false;
for (blk = blk_next(NULL); blk; blk = blk_next(blk)) {
dinfo = blk_legacy_dinfo(blk);
- /* If dinfo->bdrv->dev is NULL, it has no device attached. */
- /* Unless this is a default drive, this may be an oversight. */
if (!blk_get_attached_dev(blk) && !dinfo->is_default &&
dinfo->type != IF_NONE) {
- fprintf(stderr, "Warning: Orphaned drive without device: "
- "id=%s,file=%s,if=%s,bus=%d,unit=%d\n",
- blk_name(blk), blk_bs(blk) ? blk_bs(blk)->filename : "",
- if_name[dinfo->type], dinfo->bus, dinfo->unit);
- rs = true;
+ loc_push_none(&loc);
+ qemu_opts_loc_restore(dinfo->opts);
+ error_report("machine type does not support"
+ " if=%s,bus=%d,unit=%d",
+ if_name[dinfo->type], dinfo->bus, dinfo->unit);
+ loc_pop(&loc);
+ orphans = true;
}
}
- return rs;
+ if (orphans) {
+ exit(1);
+ }
}
DriveInfo *drive_get_by_index(BlockInterfaceType type, int index)
error_setg(errp, "Cannot specify both 'driver' and 'format'");
goto early_err;
}
- qdict_put(bs_opts, "driver", qstring_from_str(buf));
+ qdict_put_str(bs_opts, "driver", buf);
}
on_write_error = BLOCKDEV_ON_ERROR_ENOSPC;
if ((!file || !*file) && !qdict_size(bs_opts)) {
BlockBackendRootState *blk_rs;
- blk = blk_new();
+ blk = blk_new(0, BLK_PERM_ALL);
blk_rs = blk_get_root_state(blk);
blk_rs->open_flags = bdrv_flags;
blk_rs->read_only = read_only;
copy_on_read = false;
}
- qdict_put(bs_opts, BDRV_OPT_READ_ONLY,
- qstring_from_str(read_only ? "on" : "off"));
- qdict_put(bs_opts, "copy-on-read",
- qstring_from_str(copy_on_read ? "on" :"off"));
+ qdict_put_str(bs_opts, BDRV_OPT_READ_ONLY, read_only ? "on" : "off");
+ qdict_put_str(bs_opts, "copy-on-read", copy_on_read ? "on" : "off");
/* Controller type */
value = qemu_opt_get(legacy_opts, "if");
new_id = g_strdup_printf("%s%s%i", if_name[type],
mediastr, unit_id);
}
- qdict_put(bs_opts, "id", qstring_from_str(new_id));
+ qdict_put_str(bs_opts, "id", new_id);
g_free(new_id);
}
error_report("werror is not supported by this bus type");
goto fail;
}
- qdict_put(bs_opts, "werror", qstring_from_str(werror));
+ qdict_put_str(bs_opts, "werror", werror);
}
rerror = qemu_opt_get(legacy_opts, "rerror");
error_report("rerror is not supported by this bus type");
goto fail;
}
- qdict_put(bs_opts, "rerror", qstring_from_str(rerror));
+ qdict_put_str(bs_opts, "rerror", rerror);
}
/* Actual block device init: Functionality shared with blockdev-add */
BlockDriverState *old_bs;
BlockDriverState *new_bs;
AioContext *aio_context;
+ bool overlay_appended;
} ExternalSnapshotState;
static void external_snapshot_prepare(BlkActionState *common,
options = qdict_new();
if (s->has_snapshot_node_name) {
- qdict_put(options, "node-name",
- qstring_from_str(snapshot_node_name));
+ qdict_put_str(options, "node-name", snapshot_node_name);
}
- qdict_put(options, "driver", qstring_from_str(format));
+ qdict_put_str(options, "driver", format);
flags |= BDRV_O_NO_BACKING;
}
if (!state->new_bs->drv->supports_backing) {
error_setg(errp, "The snapshot does not support backing images");
+ return;
}
+
+ bdrv_set_aio_context(state->new_bs, state->aio_context);
+
+ /* This removes our old bs and adds the new bs. This is an operation that
+ * can fail, so we need to do it in .prepare; undoing it for abort is
+ * always possible. */
+ bdrv_ref(state->new_bs);
+ bdrv_append(state->new_bs, state->old_bs, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
+ state->overlay_appended = true;
}
static void external_snapshot_commit(BlkActionState *common)
ExternalSnapshotState *state =
DO_UPCAST(ExternalSnapshotState, common, common);
- bdrv_set_aio_context(state->new_bs, state->aio_context);
-
- /* This removes our old bs and adds the new bs */
- bdrv_append(state->new_bs, state->old_bs);
/* We don't need (or want) to use the transactional
* bdrv_reopen_multiple() across all the entries at once, because we
* don't want to abort all of them if one of them fails the reopen */
ExternalSnapshotState *state =
DO_UPCAST(ExternalSnapshotState, common, common);
if (state->new_bs) {
- bdrv_unref(state->new_bs);
+ if (state->overlay_appended) {
+ bdrv_replace_node(state->new_bs, state->old_bs, &error_abort);
+ }
}
}
if (state->aio_context) {
bdrv_drained_end(state->old_bs);
aio_context_release(state->aio_context);
+ bdrv_unref(state->new_bs);
}
}
BlockDirtyBitmapState *state = DO_UPCAST(BlockDirtyBitmapState,
common, common);
- bdrv_undo_clear_dirty_bitmap(state->bitmap, state->backup);
+ if (state->backup) {
+ bdrv_undo_clear_dirty_bitmap(state->bitmap, state->backup);
+ }
}
static void block_dirty_bitmap_clear_commit(BlkActionState *common)
}
if (!locked || force) {
- blk_dev_change_media_cb(blk, false);
+ blk_dev_change_media_cb(blk, false, &error_abort);
}
if (locked && !force) {
Error **errp)
{
BlockBackend *blk;
+ Error *local_err = NULL;
device = has_device ? device : NULL;
id = has_id ? id : NULL;
return;
}
- blk_dev_change_media_cb(blk, true);
+ blk_dev_change_media_cb(blk, true, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
}
void qmp_x_blockdev_remove_medium(bool has_device, const char *device,
* called at all); therefore, the medium needs to be ejected here.
* Do it after blk_remove_bs() so blk_is_inserted(blk) returns the @load
* value passed here (i.e. false). */
- blk_dev_change_media_cb(blk, false);
+ blk_dev_change_media_cb(blk, false, &error_abort);
}
out:
static void qmp_blockdev_insert_anon_medium(BlockBackend *blk,
BlockDriverState *bs, Error **errp)
{
+ Error *local_err = NULL;
bool has_device;
+ int ret;
/* For BBs without a device, we can exchange the BDS tree at will */
has_device = blk_get_attached_dev(blk);
return;
}
- blk_insert_bs(blk, bs);
+ ret = blk_insert_bs(blk, bs, errp);
+ if (ret < 0) {
+ return;
+ }
if (!blk_dev_has_tray(blk)) {
/* For tray-less devices, blockdev-close-tray is a no-op (or may not be
* slot here.
* Do it after blk_insert_bs() so blk_is_inserted(blk) returns the @load
* value passed here (i.e. true). */
- blk_dev_change_media_cb(blk, true);
+ blk_dev_change_media_cb(blk, true, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ blk_remove_bs(blk);
+ return;
+ }
}
}
options = qdict_new();
detect_zeroes = blk_get_detect_zeroes_from_root_state(blk);
- qdict_put(options, "detect-zeroes",
- qstring_from_str(detect_zeroes ? "on" : "off"));
+ qdict_put_str(options, "detect-zeroes", detect_zeroes ? "on" : "off");
if (has_format) {
- qdict_put(options, "driver", qstring_from_str(format));
+ qdict_put_str(options, "driver", format);
}
medium_bs = bdrv_open(filename, NULL, options, bdrv_flags, errp);
bs = bdrv_find_node(id);
if (bs) {
- qmp_x_blockdev_del(id, &local_err);
+ qmp_blockdev_del(id, &local_err);
if (local_err) {
error_report_err(local_err);
}
int64_t size, Error **errp)
{
Error *local_err = NULL;
+ BlockBackend *blk = NULL;
BlockDriverState *bs;
AioContext *aio_context;
int ret;
goto out;
}
- /* complete all in-flight operations before resizing the device */
- bdrv_drain_all();
-
- ret = bdrv_truncate(bs, size);
- switch (ret) {
- case 0:
- break;
- case -ENOMEDIUM:
- error_setg(errp, QERR_DEVICE_HAS_NO_MEDIUM, device);
- break;
- case -ENOTSUP:
- error_setg(errp, QERR_UNSUPPORTED);
- break;
- case -EACCES:
- error_setg(errp, "Device '%s' is read only", device);
- break;
- case -EBUSY:
- error_setg(errp, QERR_DEVICE_IN_USE, device);
- break;
- default:
- error_setg_errno(errp, -ret, "Could not resize");
- break;
+ blk = blk_new(BLK_PERM_RESIZE, BLK_PERM_ALL);
+ ret = blk_insert_bs(blk, bs, errp);
+ if (ret < 0) {
+ goto out;
}
+ bdrv_drained_begin(bs);
+ ret = blk_truncate(blk, size, errp);
+ bdrv_drained_end(bs);
+
out:
+ blk_unref(blk);
aio_context_release(aio_context);
}
bool has_top, const char *top,
bool has_backing_file, const char *backing_file,
bool has_speed, int64_t speed,
+ bool has_filter_node_name, const char *filter_node_name,
Error **errp)
{
BlockDriverState *bs;
if (!has_speed) {
speed = 0;
}
+ if (!has_filter_node_name) {
+ filter_node_name = NULL;
+ }
/* Important Note:
* libvirt relies on the DeviceNotFound error class in order to probe for
goto out;
}
commit_active_start(has_job_id ? job_id : NULL, bs, base_bs,
- BLOCK_JOB_DEFAULT, speed, on_error, NULL, NULL,
- &local_err, false);
+ BLOCK_JOB_DEFAULT, speed, on_error,
+ filter_node_name, NULL, NULL, &local_err, false);
} else {
BlockDriverState *overlay_bs = bdrv_find_overlay(bs, top_bs);
if (bdrv_op_is_blocked(overlay_bs, BLOCK_OP_TYPE_COMMIT_TARGET, errp)) {
}
commit_start(has_job_id ? job_id : NULL, bs, base_bs, top_bs, speed,
on_error, has_backing_file ? backing_file : NULL,
- &local_err);
+ filter_node_name, &local_err);
}
if (local_err != NULL) {
error_propagate(errp, local_err);
Error *local_err = NULL;
int flags;
int64_t size;
+ bool set_backing_hd = false;
if (!backup->has_speed) {
backup->speed = 0;
}
if (backup->sync == MIRROR_SYNC_MODE_NONE) {
source = bs;
+ flags |= BDRV_O_NO_BACKING;
+ set_backing_hd = true;
}
size = bdrv_getlength(bs);
}
if (backup->format) {
- options = qdict_new();
- qdict_put(options, "driver", qstring_from_str(backup->format));
+ if (!options) {
+ options = qdict_new();
+ }
+ qdict_put_str(options, "driver", backup->format);
}
target_bs = bdrv_open(backup->target, NULL, options, flags, errp);
bdrv_set_aio_context(target_bs, aio_context);
+ if (set_backing_hd) {
+ bdrv_set_backing_hd(target_bs, source, &local_err);
+ if (local_err) {
+ bdrv_unref(target_bs);
+ goto out;
+ }
+ }
+
if (backup->has_bitmap) {
bmap = bdrv_find_dirty_bitmap(bs, backup->bitmap);
if (!bmap) {
bool has_on_target_error,
BlockdevOnError on_target_error,
bool has_unmap, bool unmap,
+ bool has_filter_node_name,
+ const char *filter_node_name,
Error **errp)
{
if (!has_unmap) {
unmap = true;
}
+ if (!has_filter_node_name) {
+ filter_node_name = NULL;
+ }
if (granularity != 0 && (granularity < 512 || granularity > 1048576 * 64)) {
error_setg(errp, QERR_INVALID_PARAMETER_VALUE, "granularity",
mirror_start(job_id, bs, target,
has_replaces ? replaces : NULL,
speed, granularity, buf_size, sync, backing_mode,
- on_source_error, on_target_error, unmap, errp);
+ on_source_error, on_target_error, unmap, filter_node_name,
+ errp);
}
void qmp_drive_mirror(DriveMirror *arg, Error **errp)
options = qdict_new();
if (arg->has_node_name) {
- qdict_put(options, "node-name", qstring_from_str(arg->node_name));
+ qdict_put_str(options, "node-name", arg->node_name);
}
if (format) {
- qdict_put(options, "driver", qstring_from_str(format));
+ qdict_put_str(options, "driver", format);
}
/* Mirroring takes care of copy-on-write using the source's backing
arg->has_on_source_error, arg->on_source_error,
arg->has_on_target_error, arg->on_target_error,
arg->has_unmap, arg->unmap,
+ false, NULL,
&local_err);
bdrv_unref(target_bs);
error_propagate(errp, local_err);
BlockdevOnError on_source_error,
bool has_on_target_error,
BlockdevOnError on_target_error,
+ bool has_filter_node_name,
+ const char *filter_node_name,
Error **errp)
{
BlockDriverState *bs;
has_on_source_error, on_source_error,
has_on_target_error, on_target_error,
true, true,
+ has_filter_node_name, filter_node_name,
&local_err);
error_propagate(errp, local_err);
visit_free(v);
}
-void qmp_x_blockdev_del(const char *node_name, Error **errp)
+void qmp_blockdev_del(const char *node_name, Error **errp)
{
AioContext *aio_context;
BlockDriverState *bs;
.name = BDRV_OPT_READ_ONLY,
.type = QEMU_OPT_BOOL,
.help = "open drive file as read-only",
- },{
- .name = "throttling.iops-total",
- .type = QEMU_OPT_NUMBER,
- .help = "limit total I/O operations per second",
- },{
- .name = "throttling.iops-read",
- .type = QEMU_OPT_NUMBER,
- .help = "limit read operations per second",
- },{
- .name = "throttling.iops-write",
- .type = QEMU_OPT_NUMBER,
- .help = "limit write operations per second",
- },{
- .name = "throttling.bps-total",
- .type = QEMU_OPT_NUMBER,
- .help = "limit total bytes per second",
- },{
- .name = "throttling.bps-read",
- .type = QEMU_OPT_NUMBER,
- .help = "limit read bytes per second",
- },{
- .name = "throttling.bps-write",
- .type = QEMU_OPT_NUMBER,
- .help = "limit write bytes per second",
- },{
- .name = "throttling.iops-total-max",
- .type = QEMU_OPT_NUMBER,
- .help = "I/O operations burst",
- },{
- .name = "throttling.iops-read-max",
- .type = QEMU_OPT_NUMBER,
- .help = "I/O operations read burst",
- },{
- .name = "throttling.iops-write-max",
- .type = QEMU_OPT_NUMBER,
- .help = "I/O operations write burst",
- },{
- .name = "throttling.bps-total-max",
- .type = QEMU_OPT_NUMBER,
- .help = "total bytes burst",
- },{
- .name = "throttling.bps-read-max",
- .type = QEMU_OPT_NUMBER,
- .help = "total bytes read burst",
- },{
- .name = "throttling.bps-write-max",
- .type = QEMU_OPT_NUMBER,
- .help = "total bytes write burst",
- },{
- .name = "throttling.iops-total-max-length",
- .type = QEMU_OPT_NUMBER,
- .help = "length of the iops-total-max burst period, in seconds",
- },{
- .name = "throttling.iops-read-max-length",
- .type = QEMU_OPT_NUMBER,
- .help = "length of the iops-read-max burst period, in seconds",
- },{
- .name = "throttling.iops-write-max-length",
- .type = QEMU_OPT_NUMBER,
- .help = "length of the iops-write-max burst period, in seconds",
- },{
- .name = "throttling.bps-total-max-length",
- .type = QEMU_OPT_NUMBER,
- .help = "length of the bps-total-max burst period, in seconds",
- },{
- .name = "throttling.bps-read-max-length",
- .type = QEMU_OPT_NUMBER,
- .help = "length of the bps-read-max burst period, in seconds",
- },{
- .name = "throttling.bps-write-max-length",
- .type = QEMU_OPT_NUMBER,
- .help = "length of the bps-write-max burst period, in seconds",
- },{
- .name = "throttling.iops-size",
- .type = QEMU_OPT_NUMBER,
- .help = "when limiting by iops max size of an I/O in bytes",
- },{
+ },
+
+ THROTTLE_OPTS,
+
+ {
.name = "throttling.group",
.type = QEMU_OPT_STRING,
.help = "name of the block throttling group",
projects / mirror_qemu.git / blobdiff