#include "monitor/monitor.h"
#include "qemu/error-report.h"
#include "qemu/option.h"
+#include "qemu/qemu-print.h"
#include "qemu/config-file.h"
#include "qapi/qapi-commands-block.h"
#include "qapi/qapi-commands-transaction.h"
static void bdrv_format_print(void *opaque, const char *name)
{
- error_printf(" %s", name);
+ qemu_printf(" %s", name);
}
typedef struct {
if ((buf = qemu_opt_get(opts, "format")) != NULL) {
if (is_help_option(buf)) {
- error_printf("Supported formats:");
- bdrv_iterate_format(bdrv_format_print, NULL);
- error_printf("\n");
+ qemu_printf("Supported formats:");
+ bdrv_iterate_format(bdrv_format_print, NULL, false);
+ qemu_printf("\nSupported formats (read-only):");
+ bdrv_iterate_format(bdrv_format_print, NULL, true);
+ qemu_printf("\n");
goto early_err;
}
* @node: The name of the BDS node to search for bitmaps
* @name: The name of the bitmap to search for
* @pbs: Output pointer for BDS lookup, if desired. Can be NULL.
- * @paio: Output pointer for aio_context acquisition, if desired. Can be NULL.
* @errp: Output pointer for error information. Can be NULL.
*
* @return: A bitmap object on success, or NULL on failure.
return;
}
- if (bdrv_dirty_bitmap_user_locked(state->bitmap)) {
- error_setg(errp, "Cannot modify a bitmap in use by another operation");
- return;
- } else if (bdrv_dirty_bitmap_readonly(state->bitmap)) {
- error_setg(errp, "Cannot clear a readonly bitmap");
+ if (bdrv_dirty_bitmap_check(state->bitmap, BDRV_BITMAP_DEFAULT, errp)) {
return;
}
return;
}
- if (bdrv_dirty_bitmap_user_locked(state->bitmap)) {
- error_setg(errp,
- "Bitmap '%s' is currently in use by another operation"
- " and cannot be enabled", action->name);
+ if (bdrv_dirty_bitmap_check(state->bitmap, BDRV_BITMAP_ALLOW_RO, errp)) {
return;
}
return;
}
- if (bdrv_dirty_bitmap_user_locked(state->bitmap)) {
- error_setg(errp,
- "Bitmap '%s' is currently in use by another operation"
- " and cannot be disabled", action->name);
+ if (bdrv_dirty_bitmap_check(state->bitmap, BDRV_BITMAP_ALLOW_RO, errp)) {
return;
}
}
}
-static BdrvDirtyBitmap *do_block_dirty_bitmap_merge(const char *node,
- const char *target,
- strList *bitmaps,
- HBitmap **backup,
- Error **errp);
+static BdrvDirtyBitmap *do_block_dirty_bitmap_merge(
+ const char *node, const char *target,
+ BlockDirtyBitmapMergeSourceList *bitmaps,
+ HBitmap **backup, Error **errp);
static void block_dirty_bitmap_merge_prepare(BlkActionState *common,
Error **errp)
bdrv_disable_dirty_bitmap(bitmap);
}
- bdrv_dirty_bitmap_set_persistance(bitmap, persistent);
+ bdrv_dirty_bitmap_set_persistence(bitmap, persistent);
out:
if (aio_context) {
aio_context_release(aio_context);
return;
}
- if (bdrv_dirty_bitmap_user_locked(bitmap)) {
- error_setg(errp,
- "Bitmap '%s' is currently in use by another operation and"
- " cannot be removed", name);
+ if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_BUSY | BDRV_BITMAP_RO,
+ errp)) {
return;
}
- if (bdrv_dirty_bitmap_get_persistance(bitmap)) {
+ if (bdrv_dirty_bitmap_get_persistence(bitmap)) {
aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
bdrv_remove_persistent_dirty_bitmap(bs, name, &local_err);
return;
}
- if (bdrv_dirty_bitmap_user_locked(bitmap)) {
- error_setg(errp,
- "Bitmap '%s' is currently in use by another operation"
- " and cannot be cleared", name);
- return;
- } else if (bdrv_dirty_bitmap_readonly(bitmap)) {
- error_setg(errp, "Bitmap '%s' is readonly and cannot be cleared", name);
+ if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_DEFAULT, errp)) {
return;
}
return;
}
- if (bdrv_dirty_bitmap_user_locked(bitmap)) {
- error_setg(errp,
- "Bitmap '%s' is currently in use by another operation"
- " and cannot be enabled", name);
+ if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_ALLOW_RO, errp)) {
return;
}
return;
}
- if (bdrv_dirty_bitmap_user_locked(bitmap)) {
- error_setg(errp,
- "Bitmap '%s' is currently in use by another operation"
- " and cannot be disabled", name);
+ if (bdrv_dirty_bitmap_check(bitmap, BDRV_BITMAP_ALLOW_RO, errp)) {
return;
}
bdrv_disable_dirty_bitmap(bitmap);
}
-static BdrvDirtyBitmap *do_block_dirty_bitmap_merge(const char *node,
- const char *target,
- strList *bitmaps,
- HBitmap **backup,
- Error **errp)
+static BdrvDirtyBitmap *do_block_dirty_bitmap_merge(
+ const char *node, const char *target,
+ BlockDirtyBitmapMergeSourceList *bitmaps,
+ HBitmap **backup, Error **errp)
{
BlockDriverState *bs;
BdrvDirtyBitmap *dst, *src, *anon;
- strList *lst;
+ BlockDirtyBitmapMergeSourceList *lst;
Error *local_err = NULL;
dst = block_dirty_bitmap_lookup(node, target, &bs, errp);
}
for (lst = bitmaps; lst; lst = lst->next) {
- src = bdrv_find_dirty_bitmap(bs, lst->value);
- if (!src) {
- error_setg(errp, "Dirty bitmap '%s' not found", lst->value);
- dst = NULL;
- goto out;
+ switch (lst->value->type) {
+ const char *name, *node;
+ case QTYPE_QSTRING:
+ name = lst->value->u.local;
+ src = bdrv_find_dirty_bitmap(bs, name);
+ if (!src) {
+ error_setg(errp, "Dirty bitmap '%s' not found", name);
+ dst = NULL;
+ goto out;
+ }
+ break;
+ case QTYPE_QDICT:
+ node = lst->value->u.external.node;
+ name = lst->value->u.external.name;
+ src = block_dirty_bitmap_lookup(node, name, NULL, errp);
+ if (!src) {
+ dst = NULL;
+ goto out;
+ }
+ break;
+ default:
+ abort();
}
bdrv_merge_dirty_bitmap(anon, src, NULL, &local_err);
}
void qmp_block_dirty_bitmap_merge(const char *node, const char *target,
- strList *bitmaps, Error **errp)
+ BlockDirtyBitmapMergeSourceList *bitmaps,
+ Error **errp)
{
do_block_dirty_bitmap_merge(node, target, bitmaps, NULL, errp);
}
backup->compress = false;
}
- bs = qmp_get_root_bs(backup->device, errp);
+ bs = bdrv_lookup_bs(backup->device, backup->device, errp);
if (!bs) {
return NULL;
}
+ if (!bs->drv) {
+ error_setg(errp, "Device has no medium");
+ return NULL;
+ }
+
aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
bdrv_unref(target_bs);
goto out;
}
- if (bdrv_dirty_bitmap_user_locked(bmap)) {
- error_setg(errp,
- "Bitmap '%s' is currently in use by another operation"
- " and cannot be used for backup", backup->bitmap);
+ if (bdrv_dirty_bitmap_check(bmap, BDRV_BITMAP_DEFAULT, errp)) {
goto out;
}
}
error_setg(errp, "Bitmap '%s' could not be found", backup->bitmap);
goto out;
}
- if (bdrv_dirty_bitmap_user_locked(bmap)) {
- error_setg(errp,
- "Bitmap '%s' is currently in use by another operation"
- " and cannot be used for backup", backup->bitmap);
+ if (bdrv_dirty_bitmap_check(bmap, BDRV_BITMAP_DEFAULT, errp)) {
goto out;
}
}
sync = MIRROR_SYNC_MODE_FULL;
}
+ if (has_replaces) {
+ BlockDriverState *to_replace_bs;
+ AioContext *replace_aio_context;
+ int64_t bs_size, replace_size;
+
+ bs_size = bdrv_getlength(bs);
+ if (bs_size < 0) {
+ error_setg_errno(errp, -bs_size, "Failed to query device's size");
+ return;
+ }
+
+ to_replace_bs = check_to_replace_node(bs, replaces, errp);
+ if (!to_replace_bs) {
+ return;
+ }
+
+ replace_aio_context = bdrv_get_aio_context(to_replace_bs);
+ aio_context_acquire(replace_aio_context);
+ replace_size = bdrv_getlength(to_replace_bs);
+ aio_context_release(replace_aio_context);
+
+ if (replace_size < 0) {
+ error_setg_errno(errp, -replace_size,
+ "Failed to query the replacement node's size");
+ return;
+ }
+ if (bs_size != replace_size) {
+ error_setg(errp, "cannot replace image with a mirror image of "
+ "different size");
+ return;
+ }
+ }
+
/* pass the node name to replace to mirror start since it's loose coupling
* and will allow to check whether the node still exist at mirror completion
*/
}
if (arg->has_replaces) {
- BlockDriverState *to_replace_bs;
- AioContext *replace_aio_context;
- int64_t replace_size;
-
if (!arg->has_node_name) {
error_setg(errp, "a node-name must be provided when replacing a"
" named node of the graph");
goto out;
}
-
- to_replace_bs = check_to_replace_node(bs, arg->replaces, &local_err);
-
- if (!to_replace_bs) {
- error_propagate(errp, local_err);
- goto out;
- }
-
- replace_aio_context = bdrv_get_aio_context(to_replace_bs);
- aio_context_acquire(replace_aio_context);
- replace_size = bdrv_getlength(to_replace_bs);
- aio_context_release(replace_aio_context);
-
- if (size != replace_size) {
- error_setg(errp, "cannot replace image with a mirror image of "
- "different size");
- goto out;
- }
}
if (arg->mode == NEW_IMAGE_MODE_ABSOLUTE_PATHS) {
visit_free(v);
}
+void qmp_x_blockdev_reopen(BlockdevOptions *options, Error **errp)
+{
+ BlockDriverState *bs;
+ AioContext *ctx;
+ QObject *obj;
+ Visitor *v = qobject_output_visitor_new(&obj);
+ Error *local_err = NULL;
+ BlockReopenQueue *queue;
+ QDict *qdict;
+
+ /* Check for the selected node name */
+ if (!options->has_node_name) {
+ error_setg(errp, "Node name not specified");
+ goto fail;
+ }
+
+ bs = bdrv_find_node(options->node_name);
+ if (!bs) {
+ error_setg(errp, "Cannot find node named '%s'", options->node_name);
+ goto fail;
+ }
+
+ /* Put all options in a QDict and flatten it */
+ visit_type_BlockdevOptions(v, NULL, &options, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ goto fail;
+ }
+
+ visit_complete(v, &obj);
+ qdict = qobject_to(QDict, obj);
+
+ qdict_flatten(qdict);
+
+ /* Perform the reopen operation */
+ ctx = bdrv_get_aio_context(bs);
+ aio_context_acquire(ctx);
+ bdrv_subtree_drained_begin(bs);
+ queue = bdrv_reopen_queue(NULL, bs, qdict, false);
+ bdrv_reopen_multiple(queue, errp);
+ bdrv_subtree_drained_end(bs);
+ aio_context_release(ctx);
+
+fail:
+ visit_free(v);
+}
+
void qmp_blockdev_del(const char *node_name, Error **errp)
{
AioContext *aio_context;
aio_context_release(old_context);
}
-void qmp_x_block_latency_histogram_set(
- const char *device,
+void qmp_block_latency_histogram_set(
+ const char *id,
bool has_boundaries, uint64List *boundaries,
bool has_boundaries_read, uint64List *boundaries_read,
bool has_boundaries_write, uint64List *boundaries_write,
bool has_boundaries_flush, uint64List *boundaries_flush,
Error **errp)
{
- BlockBackend *blk = blk_by_name(device);
+ BlockBackend *blk = qmp_get_blk(NULL, id, errp);
BlockAcctStats *stats;
int ret;
if (!blk) {
- error_setg(errp, "Device '%s' not found", device);
return;
}
+
stats = blk_get_stats(blk);
if (!has_boundaries && !has_boundaries_read && !has_boundaries_write &&
stats, BLOCK_ACCT_READ,
has_boundaries_read ? boundaries_read : boundaries);
if (ret) {
- error_setg(errp, "Device '%s' set read boundaries fail", device);
+ error_setg(errp, "Device '%s' set read boundaries fail", id);
return;
}
}
stats, BLOCK_ACCT_WRITE,
has_boundaries_write ? boundaries_write : boundaries);
if (ret) {
- error_setg(errp, "Device '%s' set write boundaries fail", device);
+ error_setg(errp, "Device '%s' set write boundaries fail", id);
return;
}
}
stats, BLOCK_ACCT_FLUSH,
has_boundaries_flush ? boundaries_flush : boundaries);
if (ret) {
- error_setg(errp, "Device '%s' set flush boundaries fail", device);
+ error_setg(errp, "Device '%s' set flush boundaries fail", id);
return;
}
}
projects / mirror_qemu.git / blobdiff