{
if (!bs || !bs->drv) {
/* page size or 4k (hdd sector size) should be on the safe side */
- return MAX(4096, qemu_real_host_page_size);
+ return MAX(4096, qemu_real_host_page_size());
}
IO_CODE();
{
if (!bs || !bs->drv) {
/* page size or 4k (hdd sector size) should be on the safe side */
- return MAX(4096, qemu_real_host_page_size);
+ return MAX(4096, qemu_real_host_page_size());
}
IO_CODE();
static BlockDriver *bdrv_do_find_format(const char *format_name)
{
BlockDriver *drv1;
+ GLOBAL_STATE_CODE();
QLIST_FOREACH(drv1, &bdrv_drivers, list) {
if (!strcmp(drv1->format_name, format_name)) {
CreateCo *cco = opaque;
assert(cco->drv);
+ GLOBAL_STATE_CODE();
ret = cco->drv->bdrv_co_create_opts(cco->drv,
cco->filename, cco->opts, &local_err);
int64_t size;
int ret;
+ GLOBAL_STATE_CODE();
+
ret = blk_truncate(blk, minimum_size, false, PREALLOC_MODE_OFF, 0,
&local_err);
if (ret < 0 && ret != -ENOTSUP) {
* Helper function for bdrv_create_file_fallback(): Zero the first
* sector to remove any potentially pre-existing image header.
*/
-static int create_file_fallback_zero_first_sector(BlockBackend *blk,
- int64_t current_size,
- Error **errp)
+static int coroutine_fn
+create_file_fallback_zero_first_sector(BlockBackend *blk,
+ int64_t current_size,
+ Error **errp)
{
int64_t bytes_to_clear;
int ret;
+ GLOBAL_STATE_CODE();
+
bytes_to_clear = MIN(current_size, BDRV_SECTOR_SIZE);
if (bytes_to_clear) {
ret = blk_pwrite_zeroes(blk, 0, bytes_to_clear, BDRV_REQ_MAY_UNMAP);
Error *local_err = NULL;
int ret;
+ GLOBAL_STATE_CODE();
+
size = qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0);
buf = qemu_opt_get_del(opts, BLOCK_OPT_PREALLOC);
prealloc = qapi_enum_parse(&PreallocMode_lookup, buf,
{
int score_max = 0, score;
BlockDriver *drv = NULL, *d;
+ GLOBAL_STATE_CODE();
QLIST_FOREACH(d, &bdrv_drivers, list) {
if (d->bdrv_probe_device) {
static BlockDriver *bdrv_do_find_protocol(const char *protocol)
{
BlockDriver *drv1;
+ GLOBAL_STATE_CODE();
QLIST_FOREACH(drv1, &bdrv_drivers, list) {
if (drv1->protocol_name && !strcmp(drv1->protocol_name, protocol)) {
{
int score_max = 0, score;
BlockDriver *drv = NULL, *d;
+ IO_CODE();
QLIST_FOREACH(d, &bdrv_drivers, list) {
if (d->bdrv_probe) {
uint8_t buf[BLOCK_PROBE_BUF_SIZE];
int ret = 0;
+ GLOBAL_STATE_CODE();
+
/* Return the raw BlockDriver * to scsi-generic devices or empty drives */
if (blk_is_sg(file) || !blk_is_inserted(file) || blk_getlength(file) == 0) {
*pdrv = &bdrv_raw;
return ret;
}
- ret = blk_pread(file, 0, buf, sizeof(buf));
+ ret = blk_pread(file, 0, sizeof(buf), buf, 0);
if (ret < 0) {
error_setg_errno(errp, -ret, "Could not read image for determining its "
"format");
return ret;
}
- drv = bdrv_probe_all(buf, ret, filename);
+ drv = bdrv_probe_all(buf, sizeof(buf), filename);
if (!drv) {
error_setg(errp, "Could not determine image format: No compatible "
"driver found");
- ret = -ENOENT;
+ *pdrv = NULL;
+ return -ENOENT;
}
+
*pdrv = drv;
- return ret;
+ return 0;
}
/**
int refresh_total_sectors(BlockDriverState *bs, int64_t hint)
{
BlockDriver *drv = bs->drv;
+ IO_CODE();
if (!drv) {
return -ENOMEDIUM;
static void bdrv_join_options(BlockDriverState *bs, QDict *options,
QDict *old_options)
{
+ GLOBAL_STATE_CODE();
if (bs->drv && bs->drv->bdrv_join_options) {
bs->drv->bdrv_join_options(options, old_options);
} else {
BlockdevDetectZeroesOptions detect_zeroes =
qapi_enum_parse(&BlockdevDetectZeroesOptions_lookup, value,
BLOCKDEV_DETECT_ZEROES_OPTIONS_OFF, &local_err);
+ GLOBAL_STATE_CODE();
g_free(value);
if (local_err) {
error_propagate(errp, local_err);
static int bdrv_child_cb_inactivate(BdrvChild *child)
{
BlockDriverState *bs = child->opaque;
+ GLOBAL_STATE_CODE();
assert(bs->open_flags & BDRV_O_INACTIVE);
return 0;
}
static void bdrv_temp_snapshot_options(int *child_flags, QDict *child_options,
int parent_flags, QDict *parent_options)
{
+ GLOBAL_STATE_CODE();
*child_flags = (parent_flags & ~BDRV_O_SNAPSHOT) | BDRV_O_TEMPORARY;
/* For temporary files, unconditional cache=unsafe is fine */
BlockDriverState *parent = c->opaque;
BlockDriverState *backing_hd = c->bs;
+ GLOBAL_STATE_CODE();
assert(!parent->backing_blocker);
error_setg(&parent->backing_blocker,
"node is used as backing hd of '%s'",
{
BlockDriverState *parent = c->opaque;
+ GLOBAL_STATE_CODE();
assert(parent->backing_blocker);
bdrv_op_unblock_all(c->bs, parent->backing_blocker);
error_free(parent->backing_blocker);
BlockDriverState *parent = c->opaque;
bool read_only = bdrv_is_read_only(parent);
int ret;
+ GLOBAL_STATE_CODE();
if (read_only) {
ret = bdrv_reopen_set_read_only(parent, false, errp);
int parent_flags, QDict *parent_options)
{
int flags = parent_flags;
+ GLOBAL_STATE_CODE();
/*
* First, decide whether to set, clear, or leave BDRV_O_PROTOCOL.
{
BlockDriverState *bs = child->opaque;
+ assert_bdrv_graph_writable(bs);
QLIST_INSERT_HEAD(&bs->children, child, next);
if (child->role & BDRV_CHILD_COW) {
bdrv_unapply_subtree_drain(child, bs);
+ assert_bdrv_graph_writable(bs);
QLIST_REMOVE(child, next);
}
AioContext *bdrv_child_get_parent_aio_context(BdrvChild *c)
{
- IO_CODE();
+ GLOBAL_STATE_CODE();
return c->klass->get_parent_aio_context(c);
}
static int bdrv_open_flags(BlockDriverState *bs, int flags)
{
int open_flags = flags;
+ GLOBAL_STATE_CODE();
/*
* Clear flags that are internal to the block layer before opening the
static void update_flags_from_options(int *flags, QemuOpts *opts)
{
+ GLOBAL_STATE_CODE();
+
*flags &= ~(BDRV_O_CACHE_MASK | BDRV_O_RDWR | BDRV_O_AUTO_RDONLY);
if (qemu_opt_get_bool_del(opts, BDRV_OPT_CACHE_NO_FLUSH, false)) {
static void update_options_from_flags(QDict *options, int flags)
{
+ GLOBAL_STATE_CODE();
if (!qdict_haskey(options, BDRV_OPT_CACHE_DIRECT)) {
qdict_put_bool(options, BDRV_OPT_CACHE_DIRECT, flags & BDRV_O_NOCACHE);
}
Error **errp)
{
char *gen_node_name = NULL;
+ GLOBAL_STATE_CODE();
if (!node_name) {
node_name = gen_node_name = id_generate(ID_BLOCK);
{
Error *local_err = NULL;
int i, ret;
+ GLOBAL_STATE_CODE();
bdrv_assign_node_name(bs, node_name, &local_err);
if (local_err) {
assert(bs->file == NULL);
assert(options != NULL && bs->options != options);
+ GLOBAL_STATE_CODE();
opts = qemu_opts_create(&bdrv_runtime_opts, NULL, 0, &error_abort);
if (!qemu_opts_absorb_qdict(opts, options, errp)) {
QObject *options_obj;
QDict *options;
int ret;
+ GLOBAL_STATE_CODE();
ret = strstart(filename, "json:", &filename);
assert(ret);
{
QDict *json_options;
Error *local_err = NULL;
+ GLOBAL_STATE_CODE();
/* Parse json: pseudo-protocol */
if (!*pfilename || !g_str_has_prefix(*pfilename, "json:")) {
BlockDriver *drv = NULL;
Error *local_err = NULL;
+ GLOBAL_STATE_CODE();
+
/*
* Caution: while qdict_get_try_str() is fine, getting non-string
* types would require more care. When @options come from
static char *bdrv_child_user_desc(BdrvChild *c)
{
+ GLOBAL_STATE_CODE();
return c->klass->get_parent_desc(c);
}
uint64_t *nperm, uint64_t *nshared)
{
assert(bs->drv && bs->drv->bdrv_child_perm);
+ GLOBAL_STATE_CODE();
bs->drv->bdrv_child_perm(bs, c, role, reopen_queue,
parent_perm, parent_shared,
nperm, nshared);
BdrvChild *child;
g_autoptr(GHashTable) local_found = NULL;
+ GLOBAL_STATE_CODE();
+
if (!found) {
assert(!list);
found = local_found = g_hash_table_new(NULL, NULL);
{
BlockDriverState *bs = opaque;
uint64_t cumulative_perms, cumulative_shared_perms;
+ GLOBAL_STATE_CODE();
if (bs->drv->bdrv_set_perm) {
bdrv_get_cumulative_perm(bs, &cumulative_perms,
static void bdrv_drv_set_perm_abort(void *opaque)
{
BlockDriverState *bs = opaque;
+ GLOBAL_STATE_CODE();
if (bs->drv->bdrv_abort_perm_update) {
bs->drv->bdrv_abort_perm_update(bs);
uint64_t shared_perm, Transaction *tran,
Error **errp)
{
+ GLOBAL_STATE_CODE();
if (!bs->drv) {
return 0;
}
static void bdrv_replace_child_commit(void *opaque)
{
BdrvReplaceChildState *s = opaque;
+ GLOBAL_STATE_CODE();
if (s->free_empty_child && !s->child->bs) {
bdrv_child_free(s->child);
BdrvReplaceChildState *s = opaque;
BlockDriverState *new_bs = s->child->bs;
+ GLOBAL_STATE_CODE();
/*
* old_bs reference is transparently moved from @s to s->child.
*
uint64_t cumulative_perms = 0;
uint64_t cumulative_shared_perms = BLK_PERM_ALL;
+ GLOBAL_STATE_CODE();
+
QLIST_FOREACH(c, &bs->parents, next_parent) {
cumulative_perms |= c->perm;
cumulative_shared_perms &= c->shared_perm;
Transaction *tran = tran_new();
int ret;
+ GLOBAL_STATE_CODE();
+
bdrv_child_set_perm(c, perm, shared, tran);
ret = bdrv_refresh_perms(c->bs, &local_err);
uint64_t parent_perms, parent_shared;
uint64_t perms, shared;
+ GLOBAL_STATE_CODE();
+
bdrv_get_cumulative_perm(bs, &parent_perms, &parent_shared);
bdrv_child_perm(bs, c->bs, c, c->role, NULL,
parent_perms, parent_shared, &perms, &shared);
uint64_t perm, uint64_t shared,
uint64_t *nperm, uint64_t *nshared)
{
+ GLOBAL_STATE_CODE();
if (role & BDRV_CHILD_FILTERED) {
assert(!(role & (BDRV_CHILD_DATA | BDRV_CHILD_METADATA |
BDRV_CHILD_COW)));
assert(!child->frozen);
assert(old_bs != new_bs);
+ GLOBAL_STATE_CODE();
if (old_bs && new_bs) {
assert(bdrv_get_aio_context(old_bs) == bdrv_get_aio_context(new_bs));
if (child->klass->detach) {
child->klass->detach(child);
}
+ assert_bdrv_graph_writable(old_bs);
QLIST_REMOVE(child, next_parent);
}
}
if (new_bs) {
+ assert_bdrv_graph_writable(new_bs);
QLIST_INSERT_HEAD(&new_bs->parents, child, next_parent);
/*
static void bdrv_child_free(BdrvChild *child)
{
assert(!child->bs);
+ GLOBAL_STATE_CODE();
assert(!child->next.le_prev); /* not in children list */
g_free(child->name);
BdrvChild *child = *s->child;
BlockDriverState *bs = child->bs;
+ GLOBAL_STATE_CODE();
/*
* Pass free_empty_child=false, because we still need the child
* for the AioContext operations on the parent below; those
assert(child);
assert(*child == NULL);
assert(child_class->get_parent_desc);
+ GLOBAL_STATE_CODE();
new_child = g_new(BdrvChild, 1);
*new_child = (BdrvChild) {
uint64_t perm, shared_perm;
assert(parent_bs->drv);
+ GLOBAL_STATE_CODE();
if (bdrv_recurse_has_child(child_bs, parent_bs)) {
error_setg(errp, "Making '%s' a %s child of '%s' would create a cycle",
{
BlockDriverState *old_bs = (*childp)->bs;
+ GLOBAL_STATE_CODE();
bdrv_replace_child_noperm(childp, NULL, true);
if (old_bs) {
BdrvChild *child = NULL;
Transaction *tran = tran_new();
+ GLOBAL_STATE_CODE();
+
ret = bdrv_attach_child_common(child_bs, child_name, child_class,
child_role, perm, shared_perm, opaque,
&child, tran, errp);
static void bdrv_parent_cb_change_media(BlockDriverState *bs, bool load)
{
BdrvChild *c;
+ GLOBAL_STATE_CODE();
QLIST_FOREACH(c, &bs->parents, next_parent) {
if (c->klass->change_media) {
c->klass->change_media(c, load);
BdrvChild *child = is_backing ? parent_bs->backing : parent_bs->file;
BdrvChildRole role;
+ GLOBAL_STATE_CODE();
+
if (!parent_bs->drv) {
/*
* Node without drv is an object without a class :/. TODO: finally fix
BlockDriverState *backing_hd,
Transaction *tran, Error **errp)
{
+ GLOBAL_STATE_CODE();
return bdrv_set_file_or_backing_noperm(bs, backing_hd, true, tran, errp);
}
BlockDriverState *bs_snapshot = NULL;
int ret;
+ GLOBAL_STATE_CODE();
+
/* if snapshot, we create a temporary backing file and open it
instead of opening 'filename' directly */
assert(!child_class || !flags);
assert(!child_class == !parent);
+ GLOBAL_STATE_CODE();
if (reference) {
bool options_non_empty = options ? qdict_size(options) : false;
* important to avoid graph changes between the recursive queuing here and
* bdrv_reopen_multiple(). */
assert(bs->quiesce_counter > 0);
+ GLOBAL_STATE_CODE();
if (bs_queue == NULL) {
bs_queue = g_new0(BlockReopenQueue, 1);
assert(qemu_get_current_aio_context() == qemu_get_aio_context());
assert(bs_queue != NULL);
+ GLOBAL_STATE_CODE();
QTAILQ_FOREACH(bs_entry, bs_queue, entry) {
ctx = bdrv_get_aio_context(bs_entry->state.bs);
QObject *value;
const char *str;
+ GLOBAL_STATE_CODE();
+
value = qdict_get(reopen_state->options, child_name);
if (value == NULL) {
return 0;
assert(reopen_state != NULL);
assert(reopen_state->bs->drv != NULL);
+ GLOBAL_STATE_CODE();
drv = reopen_state->bs->drv;
/* This function and each driver's bdrv_reopen_prepare() remove
bs = reopen_state->bs;
drv = bs->drv;
assert(drv != NULL);
+ GLOBAL_STATE_CODE();
/* If there are any driver level actions to take */
if (drv->bdrv_reopen_commit) {
assert(reopen_state != NULL);
drv = reopen_state->bs->drv;
assert(drv != NULL);
+ GLOBAL_STATE_CODE();
if (drv->bdrv_reopen_abort) {
drv->bdrv_reopen_abort(reopen_state);
void bdrv_close_all(void)
{
- assert(job_next(NULL) == NULL);
GLOBAL_STATE_CODE();
+ assert(job_next(NULL) == NULL);
/* Drop references from requests still in flight, such as canceled block
* jobs whose AIO context has not been polled yet */
static void bdrv_remove_filter_or_cow_child_commit(void *opaque)
{
BdrvRemoveFilterOrCowChild *s = opaque;
-
+ GLOBAL_STATE_CODE();
bdrv_child_free(s->child);
}
BdrvChild *c, *next;
assert(to != NULL);
+ GLOBAL_STATE_CODE();
QLIST_FOREACH_SAFE(c, &from->parents, next_parent, next) {
assert(c->bs == from);
BlockDriverState *to_cow_parent = NULL;
int ret;
+ GLOBAL_STATE_CODE();
assert(to != NULL);
if (detach_subchain) {
int coroutine_fn bdrv_co_check(BlockDriverState *bs,
BdrvCheckResult *res, BdrvCheckMode fix)
{
+ IO_CODE();
if (bs->drv == NULL) {
return -ENOMEDIUM;
}
}
}
- for (job = block_job_next(NULL); job; job = block_job_next(job)) {
- GSList *el;
+ WITH_JOB_LOCK_GUARD() {
+ for (job = block_job_next_locked(NULL); job;
+ job = block_job_next_locked(job)) {
+ GSList *el;
- xdbg_graph_add_node(gr, job, X_DBG_BLOCK_GRAPH_NODE_TYPE_BLOCK_JOB,
- job->job.id);
- for (el = job->nodes; el; el = el->next) {
- xdbg_graph_add_edge(gr, job, (BdrvChild *)el->data);
+ xdbg_graph_add_node(gr, job, X_DBG_BLOCK_GRAPH_NODE_TYPE_BLOCK_JOB,
+ job->job.id);
+ for (el = job->nodes; el; el = el->next) {
+ xdbg_graph_add_edge(gr, job, (BdrvChild *)el->data);
+ }
}
}
{
BdrvChild *c;
const char *name;
+ IO_CODE();
/* If multiple parents have a name, just pick the first one. */
QLIST_FOREACH(c, &bs->parents, next_parent) {
int bdrv_get_flags(BlockDriverState *bs)
{
- GLOBAL_STATE_CODE();
+ IO_CODE();
return bs->open_flags;
}
static BlockDriverState *bdrv_find_debug_node(BlockDriverState *bs)
{
+ GLOBAL_STATE_CODE();
while (bs && bs->drv && !bs->drv->bdrv_debug_breakpoint) {
bs = bdrv_primary_bs(bs);
}
int coroutine_fn bdrv_co_invalidate_cache(BlockDriverState *bs, Error **errp)
{
Error *local_err = NULL;
+ IO_CODE();
assert(!(bs->open_flags & BDRV_O_INACTIVE));
static bool bdrv_has_bds_parent(BlockDriverState *bs, bool only_active)
{
BdrvChild *parent;
+ GLOBAL_STATE_CODE();
QLIST_FOREACH(parent, &bs->parents, next_parent) {
if (parent->klass->parent_is_bds) {
int ret;
uint64_t cumulative_perms, cumulative_shared_perms;
+ GLOBAL_STATE_CODE();
+
if (!bs->drv) {
return -ENOMEDIUM;
}
static void bdrv_do_remove_aio_context_notifier(BdrvAioNotifier *ban)
{
+ GLOBAL_STATE_CODE();
QLIST_REMOVE(ban, list);
g_free(ban);
}
BdrvAioNotifier *baf, *baf_tmp;
assert(!bs->walking_aio_notifiers);
+ GLOBAL_STATE_CODE();
bs->walking_aio_notifiers = true;
QLIST_FOREACH_SAFE(baf, &bs->aio_notifiers, list, baf_tmp) {
if (baf->deleted) {
AioContext *new_context)
{
BdrvAioNotifier *ban, *ban_tmp;
+ GLOBAL_STATE_CODE();
if (bs->quiesce_counter) {
aio_disable_external(new_context);
BdrvChild *child, *parent;
g_assert(qemu_get_current_aio_context() == qemu_get_aio_context());
+ GLOBAL_STATE_CODE();
if (old_context == new_context) {
return;
static bool bdrv_parent_can_set_aio_context(BdrvChild *c, AioContext *ctx,
GSList **ignore, Error **errp)
{
+ GLOBAL_STATE_CODE();
if (g_slist_find(*ignore, c)) {
return true;
}
{
BlockDriverState *filtered;
+ GLOBAL_STATE_CODE();
+
if (!bs || !bs->drv) {
return false;
}
* would result in exactly bs->backing. */
static bool bdrv_backing_overridden(BlockDriverState *bs)
{
+ GLOBAL_STATE_CODE();
if (bs->backing) {
return strcmp(bs->auto_backing_file,
bs->backing->bs->filename);
*/
BdrvChild *bdrv_cow_child(BlockDriverState *bs)
{
+ IO_CODE();
+
if (!bs || !bs->drv) {
return NULL;
}
BdrvChild *bdrv_filter_child(BlockDriverState *bs)
{
BdrvChild *c;
+ IO_CODE();
if (!bs || !bs->drv) {
return NULL;
{
BdrvChild *cow_child = bdrv_cow_child(bs);
BdrvChild *filter_child = bdrv_filter_child(bs);
+ IO_CODE();
/* Filter nodes cannot have COW backing files */
assert(!(cow_child && filter_child));
BdrvChild *bdrv_primary_child(BlockDriverState *bs)
{
BdrvChild *c, *found = NULL;
+ IO_CODE();
QLIST_FOREACH(c, &bs->children, next) {
if (c->role & BDRV_CHILD_PRIMARY) {
*/
BlockDriverState *bdrv_skip_implicit_filters(BlockDriverState *bs)
{
+ GLOBAL_STATE_CODE();
return bdrv_do_skip_filters(bs, true);
}
*/
BlockDriverState *bdrv_skip_filters(BlockDriverState *bs)
{
+ IO_CODE();
return bdrv_do_skip_filters(bs, false);
}
*/
BlockDriverState *bdrv_backing_chain_next(BlockDriverState *bs)
{
+ IO_CODE();
return bdrv_skip_filters(bdrv_cow_bs(bdrv_skip_filters(bs)));
}
*/
bool bdrv_bsc_is_data(BlockDriverState *bs, int64_t offset, int64_t *pnum)
{
+ IO_CODE();
RCU_READ_LOCK_GUARD();
-
return bdrv_bsc_range_overlaps_locked(bs, offset, 1, pnum);
}
void bdrv_bsc_invalidate_range(BlockDriverState *bs,
int64_t offset, int64_t bytes)
{
+ IO_CODE();
RCU_READ_LOCK_GUARD();
if (bdrv_bsc_range_overlaps_locked(bs, offset, bytes, NULL)) {
{
BdrvBlockStatusCache *new_bsc = g_new(BdrvBlockStatusCache, 1);
BdrvBlockStatusCache *old_bsc;
+ IO_CODE();
*new_bsc = (BdrvBlockStatusCache) {
.valid = true,
projects / mirror_qemu.git / blobdiff