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Block layer patches

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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Thu 17 Mar 2016 15:49:29 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream: (29 commits)
  iotests: Test QUORUM_REPORT_BAD in fifo mode
  quorum: Emit QUORUM_REPORT_BAD for reads in fifo mode
  block: Use blk_co_pwritev() in blk_co_write_zeroes()
  block: Use blk_aio_prwv() for aio_read/write/write_zeroes
  block: Use blk_prw() in blk_pread()/blk_pwrite()
  block: Use blk_co_pwritev() in blk_write_zeroes()
  block: Pull up blk_read_unthrottled() implementation
  block: Use blk_co_pwritev() for blk_write()
  block: Use blk_co_preadv() for blk_read()
  block: Use BdrvChild in BlockBackend
  block: Remove bdrv_states list
  block: Use bdrv_next() instead of bdrv_states
  block: Rewrite bdrv_next()
  block: Add blk_next_root_bs()
  block: Add bdrv_next_monitor_owned()
  block: Move some bdrv_*_all() functions to BB
  blockdev: Remove blk_hide_on_behalf_of_hmp_drive_del()
  blockdev: Split monitor reference from BB creation
  blockdev: Separate BB name management
  blockdev: Add list of all BlockBackends
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2016-03-17 15:59:42 +00:00
commit 6741d38ad0
35 changed files with 736 additions and 470 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

133
block.c
View File

@ -55,8 +55,6 @@
#define NOT_DONE 0x7fffffff /* used while emulated sync operation in progress */
struct BdrvStates bdrv_states = QTAILQ_HEAD_INITIALIZER(bdrv_states);
static QTAILQ_HEAD(, BlockDriverState) graph_bdrv_states =
QTAILQ_HEAD_INITIALIZER(graph_bdrv_states);
@ -226,10 +224,7 @@ void bdrv_register(BlockDriver *bdrv)
BlockDriverState *bdrv_new_root(void)
{
BlockDriverState *bs = bdrv_new();
QTAILQ_INSERT_TAIL(&bdrv_states, bs, device_list);
return bs;
return bdrv_new();
}
BlockDriverState *bdrv_new(void)
@ -1180,10 +1175,9 @@ static int bdrv_fill_options(QDict **options, const char *filename,
return 0;
}
static BdrvChild *bdrv_attach_child(BlockDriverState *parent_bs,
BlockDriverState *child_bs,
const char *child_name,
const BdrvChildRole *child_role)
BdrvChild *bdrv_root_attach_child(BlockDriverState *child_bs,
const char *child_name,
const BdrvChildRole *child_role)
{
BdrvChild *child = g_new(BdrvChild, 1);
*child = (BdrvChild) {
@ -1192,24 +1186,43 @@ static BdrvChild *bdrv_attach_child(BlockDriverState *parent_bs,
.role = child_role,
};
QLIST_INSERT_HEAD(&parent_bs->children, child, next);
QLIST_INSERT_HEAD(&child_bs->parents, child, next_parent);
return child;
}
static BdrvChild *bdrv_attach_child(BlockDriverState *parent_bs,
BlockDriverState *child_bs,
const char *child_name,
const BdrvChildRole *child_role)
{
BdrvChild *child = bdrv_root_attach_child(child_bs, child_name, child_role);
QLIST_INSERT_HEAD(&parent_bs->children, child, next);
return child;
}
static void bdrv_detach_child(BdrvChild *child)
{
QLIST_REMOVE(child, next);
if (child->next.le_prev) {
QLIST_REMOVE(child, next);
child->next.le_prev = NULL;
}
QLIST_REMOVE(child, next_parent);
g_free(child->name);
g_free(child);
}
void bdrv_unref_child(BlockDriverState *parent, BdrvChild *child)
void bdrv_root_unref_child(BdrvChild *child)
{
BlockDriverState *child_bs;
child_bs = child->bs;
bdrv_detach_child(child);
bdrv_unref(child_bs);
}
void bdrv_unref_child(BlockDriverState *parent, BdrvChild *child)
{
if (child == NULL) {
return;
}
@ -1218,9 +1231,7 @@ void bdrv_unref_child(BlockDriverState *parent, BdrvChild *child)
child->bs->inherits_from = NULL;
}
child_bs = child->bs;
bdrv_detach_child(child);
bdrv_unref(child_bs);
bdrv_root_unref_child(child);
}
/*
@ -1671,9 +1682,9 @@ static int bdrv_open_inherit(BlockDriverState **pbs, const char *filename,
error_setg(errp, "Block protocol '%s' doesn't support the option "
"'%s'", drv->format_name, entry->key);
} else {
error_setg(errp, "Block format '%s' used by device '%s' doesn't "
"support the option '%s'", drv->format_name,
bdrv_get_device_name(bs), entry->key);
error_setg(errp,
"Block format '%s' does not support the option '%s'",
drv->format_name, entry->key);
}
ret = -EINVAL;
@ -2230,26 +2241,10 @@ void bdrv_close_all(void)
}
}
/* Note that bs->device_list.tqe_prev is initially null,
* and gets set to non-null by QTAILQ_INSERT_TAIL(). Establish
* the useful invariant "bs in bdrv_states iff bs->tqe_prev" by
* resetting it to null on remove. */
void bdrv_device_remove(BlockDriverState *bs)
{
QTAILQ_REMOVE(&bdrv_states, bs, device_list);
bs->device_list.tqe_prev = NULL;
}
/* make a BlockDriverState anonymous by removing from bdrv_state and
* graph_bdrv_state list.
Also, NULL terminate the device_name to prevent double remove */
/* make a BlockDriverState anonymous by removing from graph_bdrv_state list.
* Also, NULL terminate the device_name to prevent double remove */
void bdrv_make_anon(BlockDriverState *bs)
{
/* Take care to remove bs from bdrv_states only when it's actually
* in it. */
if (bs->device_list.tqe_prev) {
bdrv_device_remove(bs);
}
if (bs->node_name[0] != '\0') {
QTAILQ_REMOVE(&graph_bdrv_states, bs, node_list);
}
@ -2276,6 +2271,14 @@ static void change_parent_backing_link(BlockDriverState *from,
{
BdrvChild *c, *next;
if (from->blk) {
/* FIXME We bypass blk_set_bs(), so we need to make these updates
* manually. The root problem is not in this change function, but the
* existence of BlockDriverState.blk. */
to->blk = from->blk;
from->blk = NULL;
}
QLIST_FOREACH_SAFE(c, &from->parents, next_parent, next) {
assert(c->role != &child_backing);
c->bs = to;
@ -2284,13 +2287,6 @@ static void change_parent_backing_link(BlockDriverState *from,
bdrv_ref(to);
bdrv_unref(from);
}
if (from->blk) {
blk_set_bs(from->blk, to);
if (!to->device_list.tqe_prev) {
QTAILQ_INSERT_BEFORE(from, to, device_list);
}
bdrv_device_remove(from);
}
}
static void swap_feature_fields(BlockDriverState *bs_top,
@ -2521,26 +2517,6 @@ ro_cleanup:
return ret;
}
int bdrv_commit_all(void)
{
BlockDriverState *bs;
QTAILQ_FOREACH(bs, &bdrv_states, device_list) {
AioContext *aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
if (bs->drv && bs->backing) {
int ret = bdrv_commit(bs);
if (ret < 0) {
aio_context_release(aio_context);
return ret;
}
}
aio_context_release(aio_context);
}
return 0;
}
/*
* Return values:
* 0 - success
@ -2989,12 +2965,23 @@ BlockDriverState *bdrv_next_node(BlockDriverState *bs)
return QTAILQ_NEXT(bs, node_list);
}
/* Iterates over all top-level BlockDriverStates, i.e. BDSs that are owned by
* the monitor or attached to a BlockBackend */
BlockDriverState *bdrv_next(BlockDriverState *bs)
{
if (!bs) {
return QTAILQ_FIRST(&bdrv_states);
if (!bs || bs->blk) {
bs = blk_next_root_bs(bs);
if (bs) {
return bs;
}
}
return QTAILQ_NEXT(bs, device_list);
/* Ignore all BDSs that are attached to a BlockBackend here; they have been
* handled by the above block already */
do {
bs = bdrv_next_monitor_owned(bs);
} while (bs && bs->blk);
return bs;
}
const char *bdrv_get_node_name(const BlockDriverState *bs)
@ -3302,10 +3289,10 @@ void bdrv_invalidate_cache(BlockDriverState *bs, Error **errp)
void bdrv_invalidate_cache_all(Error **errp)
{
BlockDriverState *bs;
BlockDriverState *bs = NULL;
Error *local_err = NULL;
QTAILQ_FOREACH(bs, &bdrv_states, device_list) {
while ((bs = bdrv_next(bs)) != NULL) {
AioContext *aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
@ -3335,10 +3322,10 @@ static int bdrv_inactivate(BlockDriverState *bs)
int bdrv_inactivate_all(void)
{
BlockDriverState *bs;
BlockDriverState *bs = NULL;
int ret;
QTAILQ_FOREACH(bs, &bdrv_states, device_list) {
while ((bs = bdrv_next(bs)) != NULL) {
AioContext *aio_context = bdrv_get_aio_context(bs);
aio_context_acquire(aio_context);
@ -3844,10 +3831,10 @@ bool bdrv_recurse_is_first_non_filter(BlockDriverState *bs,
*/
bool bdrv_is_first_non_filter(BlockDriverState *candidate)
{
BlockDriverState *bs;
BlockDriverState *bs = NULL;
/* walk down the bs forest recursively */
QTAILQ_FOREACH(bs, &bdrv_states, device_list) {
while ((bs = bdrv_next(bs)) != NULL) {
bool perm;
/* try to recurse in this top level bs */

706
block/block-backend.c
View File

File diff suppressed because it is too large Load Diff

44
block/io.c
View File

@ -44,12 +44,6 @@ static int coroutine_fn bdrv_co_readv_em(BlockDriverState *bs,
static int coroutine_fn bdrv_co_writev_em(BlockDriverState *bs,
int64_t sector_num, int nb_sectors,
QEMUIOVector *iov);
static int coroutine_fn bdrv_co_do_preadv(BlockDriverState *bs,
int64_t offset, unsigned int bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
static int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs,
int64_t offset, unsigned int bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
static BlockAIOCB *bdrv_co_aio_rw_vector(BlockDriverState *bs,
int64_t sector_num,
QEMUIOVector *qiov,
@ -621,20 +615,6 @@ int bdrv_read(BlockDriverState *bs, int64_t sector_num,
return bdrv_rw_co(bs, sector_num, buf, nb_sectors, false, 0);
}
/* Just like bdrv_read(), but with I/O throttling temporarily disabled */
int bdrv_read_unthrottled(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors)
{
bool enabled;
int ret;
enabled = bs->io_limits_enabled;
bs->io_limits_enabled = false;
ret = bdrv_read(bs, sector_num, buf, nb_sectors);
bs->io_limits_enabled = enabled;
return ret;
}
/* Return < 0 if error. Important errors are:
-EIO generic I/O error (may happen for all errors)
-ENOMEDIUM No media inserted.
@ -939,7 +919,7 @@ out:
/*
* Handle a read request in coroutine context
*/
static int coroutine_fn bdrv_co_do_preadv(BlockDriverState *bs,
int coroutine_fn bdrv_co_do_preadv(BlockDriverState *bs,
int64_t offset, unsigned int bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags)
{
@ -1284,7 +1264,7 @@ fail:
/*
* Handle a write request in coroutine context
*/
static int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs,
int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs,
int64_t offset, unsigned int bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags)
{
@ -1445,26 +1425,6 @@ int coroutine_fn bdrv_co_write_zeroes(BlockDriverState *bs,
BDRV_REQ_ZERO_WRITE | flags);
}
int bdrv_flush_all(void)
{
BlockDriverState *bs = NULL;
int result = 0;
while ((bs = bdrv_next(bs))) {
AioContext *aio_context = bdrv_get_aio_context(bs);
int ret;
aio_context_acquire(aio_context);
ret = bdrv_flush(bs);
if (ret < 0 && !result) {
result = ret;
}
aio_context_release(aio_context);
}
return result;
}
typedef struct BdrvCoGetBlockStatusData {
BlockDriverState *bs;
BlockDriverState *base;

2
block/parallels.c
View File

@ -478,7 +478,7 @@ static int parallels_create(const char *filename, QemuOpts *opts, Error **errp)
return ret;
}
file = blk_new_open("image", filename, NULL, NULL,
file = blk_new_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (file == NULL) {

8
block/qcow.c
View File

@ -121,11 +121,7 @@ static int qcow_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
if (header.version != QCOW_VERSION) {
char version[64];
snprintf(version, sizeof(version), "QCOW version %" PRIu32,
header.version);
error_setg(errp, QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,
bdrv_get_device_or_node_name(bs), "qcow", version);
error_setg(errp, "Unsupported qcow version %" PRIu32, header.version);
ret = -ENOTSUP;
goto fail;
}
@ -797,7 +793,7 @@ static int qcow_create(const char *filename, QemuOpts *opts, Error **errp)
goto cleanup;
}
qcow_blk = blk_new_open("image", filename, NULL, NULL,
qcow_blk = blk_new_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (qcow_blk == NULL) {

30
block/qcow2.c
View File

@ -198,22 +198,8 @@ static void cleanup_unknown_header_ext(BlockDriverState *bs)
}
}
static void GCC_FMT_ATTR(3, 4) report_unsupported(BlockDriverState *bs,
Error **errp, const char *fmt, ...)
{
char msg[64];
va_list ap;
va_start(ap, fmt);
vsnprintf(msg, sizeof(msg), fmt, ap);
va_end(ap);
error_setg(errp, QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,
bdrv_get_device_or_node_name(bs), "qcow2", msg);
}
static void report_unsupported_feature(BlockDriverState *bs,
Error **errp, Qcow2Feature *table, uint64_t mask)
static void report_unsupported_feature(Error **errp, Qcow2Feature *table,
uint64_t mask)
{
char *features = g_strdup("");
char *old;
@ -238,7 +224,7 @@ static void report_unsupported_feature(BlockDriverState *bs,
g_free(old);
}
report_unsupported(bs, errp, "%s", features);
error_setg(errp, "Unsupported qcow2 feature(s): %s", features);
g_free(features);
}
@ -855,7 +841,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
goto fail;
}
if (header.version < 2 || header.version > 3) {
report_unsupported(bs, errp, "QCOW version %" PRIu32, header.version);
error_setg(errp, "Unsupported qcow2 version %" PRIu32, header.version);
ret = -ENOTSUP;
goto fail;
}
@ -935,7 +921,7 @@ static int qcow2_open(BlockDriverState *bs, QDict *options, int flags,
void *feature_table = NULL;
qcow2_read_extensions(bs, header.header_length, ext_end,
&feature_table, NULL);
report_unsupported_feature(bs, errp, feature_table,
report_unsupported_feature(errp, feature_table,
s->incompatible_features &
~QCOW2_INCOMPAT_MASK);
ret = -ENOTSUP;
@ -2173,7 +2159,7 @@ static int qcow2_create2(const char *filename, int64_t total_size,
return ret;
}
blk = blk_new_open("image", filename, NULL, NULL,
blk = blk_new_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (blk == NULL) {
@ -2238,7 +2224,7 @@ static int qcow2_create2(const char *filename, int64_t total_size,
*/
options = qdict_new();
qdict_put(options, "driver", qstring_from_str("qcow2"));
blk = blk_new_open("image-qcow2", filename, NULL, options,
blk = blk_new_open(filename, NULL, options,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_FLUSH,
&local_err);
if (blk == NULL) {
@ -2300,7 +2286,7 @@ static int qcow2_create2(const char *filename, int64_t total_size,
/* Reopen the image without BDRV_O_NO_FLUSH to flush it before returning */
options = qdict_new();
qdict_put(options, "driver", qstring_from_str("qcow2"));
blk = blk_new_open("image-flush", filename, NULL, options,
blk = blk_new_open(filename, NULL, options,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_NO_BACKING,
&local_err);
if (blk == NULL) {

9
block/qed.c
View File

@ -400,11 +400,8 @@ static int bdrv_qed_open(BlockDriverState *bs, QDict *options, int flags,
}
if (s->header.features & ~QED_FEATURE_MASK) {
/* image uses unsupported feature bits */
char buf[64];
snprintf(buf, sizeof(buf), "%" PRIx64,
s->header.features & ~QED_FEATURE_MASK);
error_setg(errp, QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,
bdrv_get_device_or_node_name(bs), "QED", buf);
error_setg(errp, "Unsupported QED features: %" PRIx64,
s->header.features & ~QED_FEATURE_MASK);
return -ENOTSUP;
}
if (!qed_is_cluster_size_valid(s->header.cluster_size)) {
@ -577,7 +574,7 @@ static int qed_create(const char *filename, uint32_t cluster_size,
return ret;
}
blk = blk_new_open("image", filename, NULL, NULL,
blk = blk_new_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (blk == NULL) {

17
block/quorum.c
View File

@ -284,9 +284,17 @@ static void quorum_aio_cb(void *opaque, int ret)
QuorumChildRequest *sacb = opaque;
QuorumAIOCB *acb = sacb->parent;
BDRVQuorumState *s = acb->common.bs->opaque;
QuorumOpType type;
bool rewrite = false;
if (ret == 0) {
acb->success_count++;
} else {
QuorumOpType type;
type = acb->is_read ? QUORUM_OP_TYPE_READ : QUORUM_OP_TYPE_WRITE;
quorum_report_bad(type, acb->sector_num, acb->nb_sectors,
sacb->aiocb->bs->node_name, ret);
}
if (acb->is_read && s->read_pattern == QUORUM_READ_PATTERN_FIFO) {
/* We try to read next child in FIFO order if we fail to read */
if (ret < 0 && (acb->child_iter + 1) < s->num_children) {
@ -303,15 +311,8 @@ static void quorum_aio_cb(void *opaque, int ret)
return;
}
type = acb->is_read ? QUORUM_OP_TYPE_READ : QUORUM_OP_TYPE_WRITE;
sacb->ret = ret;
acb->count++;
if (ret == 0) {
acb->success_count++;
} else {
quorum_report_bad(type, acb->sector_num, acb->nb_sectors,
sacb->aiocb->bs->node_name, ret);
}
assert(acb->count <= s->num_children);
assert(acb->success_count <= s->num_children);
if (acb->count < s->num_children) {

4
block/sheepdog.c
View File

@ -1646,7 +1646,7 @@ static int sd_prealloc(const char *filename, Error **errp)
void *buf = NULL;
int ret;
blk = blk_new_open("image-prealloc", filename, NULL, NULL,
blk = blk_new_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
errp);
if (blk == NULL) {
@ -1843,7 +1843,7 @@ static int sd_create(const char *filename, QemuOpts *opts,
goto out;
}
blk = blk_new_open("backing", backing_file, NULL, NULL,
blk = blk_new_open(backing_file, NULL, NULL,
BDRV_O_PROTOCOL | BDRV_O_CACHE_WB, errp);
if (blk == NULL) {
ret = -EIO;

2
block/vdi.c
View File

@ -768,7 +768,7 @@ static int vdi_create(const char *filename, QemuOpts *opts, Error **errp)
goto exit;
}
blk = blk_new_open("image", filename, NULL, NULL,
blk = blk_new_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (blk == NULL) {

2
block/vhdx.c
View File

@ -1838,7 +1838,7 @@ static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp)
goto exit;
}
blk = blk_new_open("image", filename, NULL, NULL,
blk = blk_new_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (blk == NULL) {

13
block/vmdk.c
View File

@ -661,11 +661,8 @@ static int vmdk_open_vmdk4(BlockDriverState *bs,
compressed =
le16_to_cpu(header.compressAlgorithm) == VMDK4_COMPRESSION_DEFLATE;
if (le32_to_cpu(header.version) > 3) {
char buf[64];
snprintf(buf, sizeof(buf), "VMDK version %" PRId32,
le32_to_cpu(header.version));
error_setg(errp, QERR_UNKNOWN_BLOCK_FORMAT_FEATURE,
bdrv_get_device_or_node_name(bs), "vmdk", buf);
error_setg(errp, "Unsupported VMDK version %" PRIu32,
le32_to_cpu(header.version));
return -ENOTSUP;
} else if (le32_to_cpu(header.version) == 3 && (flags & BDRV_O_RDWR) &&
!compressed) {
@ -1664,7 +1661,7 @@ static int vmdk_create_extent(const char *filename, int64_t filesize,
goto exit;
}
blk = blk_new_open("extent", filename, NULL, NULL,
blk = blk_new_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (blk == NULL) {
@ -1949,7 +1946,7 @@ static int vmdk_create(const char *filename, QemuOpts *opts, Error **errp)
goto exit;
}
blk = blk_new_open("backing", full_backing, NULL, NULL,
blk = blk_new_open(full_backing, NULL, NULL,
BDRV_O_NO_BACKING | BDRV_O_CACHE_WB, errp);
g_free(full_backing);
if (blk == NULL) {
@ -2021,7 +2018,7 @@ static int vmdk_create(const char *filename, QemuOpts *opts, Error **errp)
}
}
new_blk = blk_new_open("descriptor", filename, NULL, NULL,
new_blk = blk_new_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (new_blk == NULL) {

2
block/vpc.c
View File

@ -888,7 +888,7 @@ static int vpc_create(const char *filename, QemuOpts *opts, Error **errp)
goto out;
}
blk = blk_new_open("image", filename, NULL, NULL,
blk = blk_new_open(filename, NULL, NULL,
BDRV_O_RDWR | BDRV_O_CACHE_WB | BDRV_O_PROTOCOL,
&local_err);
if (blk == NULL) {

47
blockdev.c
View File

@ -147,6 +147,7 @@ void blockdev_auto_del(BlockBackend *blk)
DriveInfo *dinfo = blk_legacy_dinfo(blk);
if (dinfo && dinfo->auto_del) {
monitor_remove_blk(blk);
blk_unref(blk);
}
}
@ -561,7 +562,7 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts,
if ((!file || !*file) && !qdict_size(bs_opts)) {
BlockBackendRootState *blk_rs;
blk = blk_new(qemu_opts_id(opts), errp);
blk = blk_new(errp);
if (!blk) {
goto early_err;
}
@ -597,8 +598,7 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts,
bdrv_flags |= BDRV_O_INACTIVE;
}
blk = blk_new_open(qemu_opts_id(opts), file, NULL, bs_opts, bdrv_flags,
errp);
blk = blk_new_open(file, NULL, bs_opts, bdrv_flags, errp);
if (!blk) {
goto err_no_bs_opts;
}
@ -630,6 +630,12 @@ static BlockBackend *blockdev_init(const char *file, QDict *bs_opts,
blk_set_on_error(blk, on_read_error, on_write_error);
if (!monitor_add_blk(blk, qemu_opts_id(opts), errp)) {
blk_unref(blk);
blk = NULL;
goto err_no_bs_opts;
}
err_no_bs_opts:
qemu_opts_del(opts);
QDECREF(interval_dict);
@ -717,6 +723,13 @@ void blockdev_close_all_bdrv_states(void)
}
}
/* Iterates over the list of monitor-owned BlockDriverStates */
BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs)
{
return bs ? QTAILQ_NEXT(bs, monitor_list)
: QTAILQ_FIRST(&monitor_bdrv_states);
}
static void qemu_opt_rename(QemuOpts *opts, const char *from, const char *to,
Error **errp)
{
@ -1173,7 +1186,7 @@ void hmp_commit(Monitor *mon, const QDict *qdict)
int ret;
if (!strcmp(device, "all")) {
ret = bdrv_commit_all();
ret = blk_commit_all();
} else {
BlockDriverState *bs;
AioContext *aio_context;
@ -2413,11 +2426,6 @@ void qmp_x_blockdev_remove_medium(const char *device, Error **errp)
goto out;
}
/* This follows the convention established by bdrv_make_anon() */
if (bs->device_list.tqe_prev) {
bdrv_device_remove(bs);
}
blk_remove_bs(blk);
if (!blk_dev_has_tray(blk)) {
@ -2465,8 +2473,6 @@ static void qmp_blockdev_insert_anon_medium(const char *device,
blk_insert_bs(blk, bs);
QTAILQ_INSERT_TAIL(&bdrv_states, bs, device_list);
if (!blk_dev_has_tray(blk)) {
/* For tray-less devices, blockdev-close-tray is a no-op (or may not be
* called at all); therefore, the medium needs to be pushed into the
@ -2859,13 +2865,16 @@ void hmp_drive_del(Monitor *mon, const QDict *qdict)
blk_remove_bs(blk);
}
/* if we have a device attached to this BlockDriverState
* then we need to make the drive anonymous until the device
* can be removed. If this is a drive with no device backing
* then we can just get rid of the block driver state right here.
/* Make the BlockBackend and the attached BlockDriverState anonymous */
monitor_remove_blk(blk);
if (blk_bs(blk)) {
bdrv_make_anon(blk_bs(blk));
}
/* If this BlockBackend has a device attached to it, its refcount will be
* decremented when the device is removed; otherwise we have to do so here.
*/
if (blk_get_attached_dev(blk)) {
blk_hide_on_behalf_of_hmp_drive_del(blk);
/* Further I/O must not pause the guest */
blk_set_on_error(blk, BLOCKDEV_ON_ERROR_REPORT,
BLOCKDEV_ON_ERROR_REPORT);
@ -3898,6 +3907,7 @@ void hmp_drive_add_node(Monitor *mon, const char *optstr)
qdict = qemu_opts_to_qdict(opts, NULL);
if (!qdict_get_try_str(qdict, "node-name")) {
QDECREF(qdict);
error_report("'node-name' needs to be specified");
goto out;
}
@ -3975,6 +3985,7 @@ void qmp_blockdev_add(BlockdevOptions *options, Error **errp)
if (bs && bdrv_key_required(bs)) {
if (blk) {
monitor_remove_blk(blk);
blk_unref(blk);
} else {
QTAILQ_REMOVE(&monitor_bdrv_states, bs, monitor_list);
@ -4004,6 +4015,7 @@ void qmp_x_blockdev_del(bool has_id, const char *id,
}
if (has_id) {
/* blk_by_name() never returns a BB that is not owned by the monitor */
blk = blk_by_name(id);
if (!blk) {
error_setg(errp, "Cannot find block backend %s", id);
@ -4051,6 +4063,7 @@ void qmp_x_blockdev_del(bool has_id, const char *id,
}
if (blk) {
monitor_remove_blk(blk);
blk_unref(blk);
} else {
QTAILQ_REMOVE(&monitor_bdrv_states, bs, monitor_list);
@ -4221,7 +4234,7 @@ QemuOptsList qemu_common_drive_opts = {
static QemuOptsList qemu_root_bds_opts = {
.name = "root-bds",
.head = QTAILQ_HEAD_INITIALIZER(qemu_common_drive_opts.head),
.head = QTAILQ_HEAD_INITIALIZER(qemu_root_bds_opts.head),
.desc = {
{
.name = "discard",

5
cpus.c
View File

@ -29,6 +29,7 @@
#include "qapi/qmp/qerror.h"
#include "qemu/error-report.h"
#include "sysemu/sysemu.h"
#include "sysemu/block-backend.h"
#include "exec/gdbstub.h"
#include "sysemu/dma.h"
#include "sysemu/kvm.h"
@ -734,7 +735,7 @@ static int do_vm_stop(RunState state)
}
bdrv_drain_all();
ret = bdrv_flush_all();
ret = blk_flush_all();
return ret;
}
@ -1433,7 +1434,7 @@ int vm_stop_force_state(RunState state)
bdrv_drain_all();
/* Make sure to return an error if the flush in a previous vm_stop()
* failed. */
return bdrv_flush_all();
return blk_flush_all();
}
}

4
device-hotplug.c
View File

@ -84,6 +84,8 @@ void hmp_drive_add(Monitor *mon, const QDict *qdict)
err:
if (dinfo) {
blk_unref(blk_by_legacy_dinfo(dinfo));
BlockBackend *blk = blk_by_legacy_dinfo(dinfo);
monitor_remove_blk(blk);
blk_unref(blk);
}
}

2
hw/block/xen_disk.c
View File

@ -917,7 +917,7 @@ static int blk_connect(struct XenDevice *xendev)
/* setup via xenbus -> create new block driver instance */
xen_be_printf(&blkdev->xendev, 2, "create new bdrv (xenbus setup)\n");
blkdev->blk = blk_new_open(blkdev->dev, blkdev->filename, NULL, options,
blkdev->blk = blk_new_open(blkdev->filename, NULL, options,
qflags, &local_err);
if (!blkdev->blk) {
xen_be_printf(&blkdev->xendev, 0, "error: %s\n",

6
include/block/block.h
View File

@ -201,7 +201,6 @@ int bdrv_create(BlockDriver *drv, const char* filename,
int bdrv_create_file(const char *filename, QemuOpts *opts, Error **errp);
BlockDriverState *bdrv_new_root(void);
BlockDriverState *bdrv_new(void);
void bdrv_device_remove(BlockDriverState *bs);
void bdrv_make_anon(BlockDriverState *bs);
void bdrv_append(BlockDriverState *bs_new, BlockDriverState *bs_top);
void bdrv_replace_in_backing_chain(BlockDriverState *old,
@ -230,8 +229,6 @@ void bdrv_reopen_commit(BDRVReopenState *reopen_state);
void bdrv_reopen_abort(BDRVReopenState *reopen_state);
int bdrv_read(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors);
int bdrv_read_unthrottled(BlockDriverState *bs, int64_t sector_num,
uint8_t *buf, int nb_sectors);
int bdrv_write(BlockDriverState *bs, int64_t sector_num,
const uint8_t *buf, int nb_sectors);
int bdrv_write_zeroes(BlockDriverState *bs, int64_t sector_num,
@ -274,7 +271,6 @@ int64_t bdrv_get_allocated_file_size(BlockDriverState *bs);
void bdrv_get_geometry(BlockDriverState *bs, uint64_t *nb_sectors_ptr);
void bdrv_refresh_limits(BlockDriverState *bs, Error **errp);
int bdrv_commit(BlockDriverState *bs);
int bdrv_commit_all(void);
int bdrv_change_backing_file(BlockDriverState *bs,
const char *backing_file, const char *backing_fmt);
void bdrv_register(BlockDriver *bdrv);
@ -373,7 +369,6 @@ int bdrv_inactivate_all(void);
/* Ensure contents are flushed to disk. */
int bdrv_flush(BlockDriverState *bs);
int coroutine_fn bdrv_co_flush(BlockDriverState *bs);
int bdrv_flush_all(void);
void bdrv_close_all(void);
void bdrv_drain(BlockDriverState *bs);
void bdrv_drain_all(void);
@ -414,6 +409,7 @@ BlockDriverState *bdrv_lookup_bs(const char *device,
bool bdrv_chain_contains(BlockDriverState *top, BlockDriverState *base);
BlockDriverState *bdrv_next_node(BlockDriverState *bs);
BlockDriverState *bdrv_next(BlockDriverState *bs);
BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs);
int bdrv_is_encrypted(BlockDriverState *bs);
int bdrv_key_required(BlockDriverState *bs);
int bdrv_set_key(BlockDriverState *bs, const char *key);

16
include/block/block_int.h
View File

@ -442,8 +442,6 @@ struct BlockDriverState {
char node_name[32];
/* element of the list of named nodes building the graph */
QTAILQ_ENTRY(BlockDriverState) node_list;
/* element of the list of "drives" the guest sees */
QTAILQ_ENTRY(BlockDriverState) device_list;
/* element of the list of all BlockDriverStates (all_bdrv_states) */
QTAILQ_ENTRY(BlockDriverState) bs_list;
/* element of the list of monitor-owned BDS */
@ -501,8 +499,6 @@ extern BlockDriver bdrv_file;
extern BlockDriver bdrv_raw;
extern BlockDriver bdrv_qcow2;
extern QTAILQ_HEAD(BdrvStates, BlockDriverState) bdrv_states;
/**
* bdrv_setup_io_funcs:
*
@ -512,6 +508,13 @@ extern QTAILQ_HEAD(BdrvStates, BlockDriverState) bdrv_states;
*/
void bdrv_setup_io_funcs(BlockDriver *bdrv);
int coroutine_fn bdrv_co_do_preadv(BlockDriverState *bs,
int64_t offset, unsigned int bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
int coroutine_fn bdrv_co_do_pwritev(BlockDriverState *bs,
int64_t offset, unsigned int bytes, QEMUIOVector *qiov,
BdrvRequestFlags flags);
int get_tmp_filename(char *filename, int size);
BlockDriver *bdrv_probe_all(const uint8_t *buf, int buf_size,
const char *filename);
@ -696,6 +699,11 @@ void backup_start(BlockDriverState *bs, BlockDriverState *target,
void hmp_drive_add_node(Monitor *mon, const char *optstr);
BdrvChild *bdrv_root_attach_child(BlockDriverState *child_bs,
const char *child_name,
const BdrvChildRole *child_role);
void bdrv_root_unref_child(BdrvChild *child);
void blk_set_bs(BlockBackend *blk, BlockDriverState *bs);
void blk_dev_change_media_cb(BlockBackend *blk, bool load);

3
include/qapi/qmp/qerror.h
View File

@ -100,9 +100,6 @@
#define QERR_UNDEFINED_ERROR \
"An undefined error has occurred"
#define QERR_UNKNOWN_BLOCK_FORMAT_FEATURE \
"'%s' uses a %s feature which is not supported by this qemu version: %s"
#define QERR_UNSUPPORTED \
"this feature or command is not currently supported"

15
include/sysemu/block-backend.h
View File

@ -59,11 +59,10 @@ typedef struct BlockDevOps {
void (*resize_cb)(void *opaque);
} BlockDevOps;
BlockBackend *blk_new(const char *name, Error **errp);
BlockBackend *blk_new_with_bs(const char *name, Error **errp);
BlockBackend *blk_new_open(const char *name, const char *filename,
const char *reference, QDict *options, int flags,
Error **errp);
BlockBackend *blk_new(Error **errp);
BlockBackend *blk_new_with_bs(Error **errp);
BlockBackend *blk_new_open(const char *filename, const char *reference,
QDict *options, int flags, Error **errp);
int blk_get_refcnt(BlockBackend *blk);
void blk_ref(BlockBackend *blk);
void blk_unref(BlockBackend *blk);
@ -71,13 +70,14 @@ void blk_remove_all_bs(void);
const char *blk_name(BlockBackend *blk);
BlockBackend *blk_by_name(const char *name);
BlockBackend *blk_next(BlockBackend *blk);
BlockDriverState *blk_next_root_bs(BlockDriverState *bs);
bool monitor_add_blk(BlockBackend *blk, const char *name, Error **errp);
void monitor_remove_blk(BlockBackend *blk);
BlockDriverState *blk_bs(BlockBackend *blk);
void blk_remove_bs(BlockBackend *blk);
void blk_insert_bs(BlockBackend *blk, BlockDriverState *bs);
void blk_hide_on_behalf_of_hmp_drive_del(BlockBackend *blk);
void blk_set_allow_write_beyond_eof(BlockBackend *blk, bool allow);
void blk_iostatus_enable(BlockBackend *blk);
bool blk_iostatus_is_enabled(const BlockBackend *blk);
@ -127,6 +127,7 @@ int blk_co_discard(BlockBackend *blk, int64_t sector_num, int nb_sectors);
int blk_co_flush(BlockBackend *blk);
int blk_flush(BlockBackend *blk);
int blk_flush_all(void);
int blk_commit_all(void);
void blk_drain(BlockBackend *blk);
void blk_drain_all(void);
void blk_set_on_error(BlockBackend *blk, BlockdevOnError on_read_error,

7
monitor.c
View File

@ -42,6 +42,7 @@
#include "ui/console.h"
#include "ui/input.h"
#include "sysemu/blockdev.h"
#include "sysemu/block-backend.h"
#include "audio/audio.h"
#include "disas/disas.h"
#include "sysemu/balloon.h"
@ -3483,7 +3484,7 @@ static void monitor_find_completion_by_table(Monitor *mon,
int i;
const char *ptype, *str, *name;
const mon_cmd_t *cmd;
BlockDriverState *bs;
BlockBackend *blk = NULL;
if (nb_args <= 1) {
/* command completion */
@ -3538,8 +3539,8 @@ static void monitor_find_completion_by_table(Monitor *mon,
case 'B':
/* block device name completion */
readline_set_completion_index(mon->rs, strlen(str));
for (bs = bdrv_next(NULL); bs; bs = bdrv_next(bs)) {
name = bdrv_get_device_name(bs);
while ((blk = blk_next(blk)) != NULL) {
name = blk_name(blk);
if (str[0] == '\0' ||
!strncmp(name, str, strlen(str))) {
readline_add_completion(mon->rs, name);

3
qemu-char.c
View File

@ -25,6 +25,7 @@
#include "qemu-common.h"
#include "monitor/monitor.h"
#include "sysemu/sysemu.h"
#include "sysemu/block-backend.h"
#include "qemu/error-report.h"
#include "qemu/timer.h"
#include "sysemu/char.h"
@ -628,7 +629,7 @@ static int mux_proc_byte(CharDriverState *chr, MuxDriver *d, int ch)
break;
}
case 's':
bdrv_commit_all();
blk_commit_all();
break;
case 'b':
qemu_chr_be_event(chr, CHR_EVENT_BREAK);

50
qemu-img.c
View File

@ -245,8 +245,7 @@ static int img_open_password(BlockBackend *blk, const char *filename,
}
static BlockBackend *img_open_opts(const char *id,
const char *optstr,
static BlockBackend *img_open_opts(const char *optstr,
QemuOpts *opts, int flags,
bool require_io, bool quiet)
{
@ -254,7 +253,7 @@ static BlockBackend *img_open_opts(const char *id,
Error *local_err = NULL;
BlockBackend *blk;
options = qemu_opts_to_qdict(opts, NULL);
blk = blk_new_open(id, NULL, NULL, options, flags, &local_err);
blk = blk_new_open(NULL, NULL, options, flags, &local_err);
if (!blk) {
error_reportf_err(local_err, "Could not open '%s'", optstr);
return NULL;
@ -267,7 +266,7 @@ static BlockBackend *img_open_opts(const char *id,
return blk;
}
static BlockBackend *img_open_file(const char *id, const char *filename,
static BlockBackend *img_open_file(const char *filename,
const char *fmt, int flags,
bool require_io, bool quiet)
{
@ -280,7 +279,7 @@ static BlockBackend *img_open_file(const char *id, const char *filename,
qdict_put(options, "driver", qstring_from_str(fmt));
}
blk = blk_new_open(id, filename, NULL, options, flags, &local_err);
blk = blk_new_open(filename, NULL, options, flags, &local_err);
if (!blk) {
error_reportf_err(local_err, "Could not open '%s': ", filename);
return NULL;
@ -294,8 +293,7 @@ static BlockBackend *img_open_file(const char *id, const char *filename,
}
static BlockBackend *img_open(const char *id,
bool image_opts,
static BlockBackend *img_open(bool image_opts,
const char *filename,
const char *fmt, int flags,
bool require_io, bool quiet)
@ -312,9 +310,9 @@ static BlockBackend *img_open(const char *id,
if (!opts) {
return NULL;
}
blk = img_open_opts(id, filename, opts, flags, true, quiet);
blk = img_open_opts(filename, opts, flags, true, quiet);
} else {
blk = img_open_file(id, filename, fmt, flags, true, quiet);
blk = img_open_file(filename, fmt, flags, true, quiet);
}
return blk;
}
@ -686,7 +684,7 @@ static int img_check(int argc, char **argv)
return 1;
}
blk = img_open("image", image_opts, filename, fmt, flags, true, quiet);
blk = img_open(image_opts, filename, fmt, flags, true, quiet);
if (!blk) {
return 1;
}
@ -878,7 +876,7 @@ static int img_commit(int argc, char **argv)
return 1;
}
blk = img_open("image", image_opts, filename, fmt, flags, true, quiet);
blk = img_open(image_opts, filename, fmt, flags, true, quiet);
if (!blk) {
return 1;
}
@ -1212,13 +1210,13 @@ static int img_compare(int argc, char **argv)
goto out3;
}
blk1 = img_open("image_1", image_opts, filename1, fmt1, flags, true, quiet);
blk1 = img_open(image_opts, filename1, fmt1, flags, true, quiet);
if (!blk1) {
ret = 2;
goto out3;
}
blk2 = img_open("image_2", image_opts, filename2, fmt2, flags, true, quiet);
blk2 = img_open(image_opts, filename2, fmt2, flags, true, quiet);
if (!blk2) {
ret = 2;
goto out2;
@ -1899,11 +1897,8 @@ static int img_convert(int argc, char **argv)
total_sectors = 0;
for (bs_i = 0; bs_i < bs_n; bs_i++) {
char *id = bs_n > 1 ? g_strdup_printf("source_%d", bs_i)
: g_strdup("source");
blk[bs_i] = img_open(id, image_opts, argv[optind + bs_i],
blk[bs_i] = img_open(image_opts, argv[optind + bs_i],
fmt, src_flags, true, quiet);
g_free(id);
if (!blk[bs_i]) {
ret = -1;
goto out;
@ -2048,8 +2043,7 @@ static int img_convert(int argc, char **argv)
* the bdrv_create() call which takes different params.
* Not critical right now, so fix can wait...
*/
out_blk = img_open_file("target", out_filename,
out_fmt, flags, true, quiet);
out_blk = img_open_file(out_filename, out_fmt, flags, true, quiet);
if (!out_blk) {
ret = -1;
goto out;
@ -2240,7 +2234,7 @@ static ImageInfoList *collect_image_info_list(bool image_opts,
}
g_hash_table_insert(filenames, (gpointer)filename, NULL);
blk = img_open("image", image_opts, filename, fmt,
blk = img_open(image_opts, filename, fmt,
BDRV_O_FLAGS | BDRV_O_NO_BACKING,
false, false);
if (!blk) {
@ -2572,8 +2566,7 @@ static int img_map(int argc, char **argv)
return 1;
}
blk = img_open("image", image_opts, filename, fmt,
BDRV_O_FLAGS, true, false);
blk = img_open(image_opts, filename, fmt, BDRV_O_FLAGS, true, false);
if (!blk) {
return 1;
}
@ -2718,8 +2711,7 @@ static int img_snapshot(int argc, char **argv)
}
/* Open the image */
blk = img_open("image", image_opts, filename, NULL,
bdrv_oflags, true, quiet);
blk = img_open(image_opts, filename, NULL, bdrv_oflags, true, quiet);
if (!blk) {
return 1;
}
@ -2890,7 +2882,7 @@ static int img_rebase(int argc, char **argv)
* Ignore the old backing file for unsafe rebase in case we want to correct
* the reference to a renamed or moved backing file.
*/
blk = img_open("image", image_opts, filename, fmt, flags, true, quiet);
blk = img_open(image_opts, filename, fmt, flags, true, quiet);
if (!blk) {
ret = -1;
goto out;
@ -2916,7 +2908,7 @@ static int img_rebase(int argc, char **argv)
}
bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name));
blk_old_backing = blk_new_open("old_backing", backing_name, NULL,
blk_old_backing = blk_new_open(backing_name, NULL,
options, src_flags, &local_err);
if (!blk_old_backing) {
error_reportf_err(local_err,
@ -2933,7 +2925,7 @@ static int img_rebase(int argc, char **argv)
options = NULL;
}
blk_new_backing = blk_new_open("new_backing", out_baseimg, NULL,
blk_new_backing = blk_new_open(out_baseimg, NULL,
options, src_flags, &local_err);
if (!blk_new_backing) {
error_reportf_err(local_err,
@ -3227,7 +3219,7 @@ static int img_resize(int argc, char **argv)
n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0);
qemu_opts_del(param);
blk = img_open("image", image_opts, filename, fmt,
blk = img_open(image_opts, filename, fmt,
BDRV_O_FLAGS | BDRV_O_RDWR, true, quiet);
if (!blk) {
ret = -1;
@ -3387,7 +3379,7 @@ static int img_amend(int argc, char **argv)
goto out;
}
blk = img_open("image", image_opts, filename, fmt, flags, true, quiet);
blk = img_open(image_opts, filename, fmt, flags, true, quiet);
if (!blk) {
ret = -1;
goto out;

2
qemu-io.c
View File

@ -61,7 +61,7 @@ static int openfile(char *name, int flags, QDict *opts)
return 1;
}
qemuio_blk = blk_new_open("hda", name, NULL, opts, flags, &local_err);
qemuio_blk = blk_new_open(name, NULL, opts, flags, &local_err);
if (!qemuio_blk) {
error_reportf_err(local_err, "can't open%s%s: ",
name ? " device " : "", name ?: "");

4
qemu-nbd.c
View File

@ -831,13 +831,13 @@ int main(int argc, char **argv)
}
options = qemu_opts_to_qdict(opts, NULL);
qemu_opts_reset(&file_opts);
blk = blk_new_open("hda", NULL, NULL, options, flags, &local_err);
blk = blk_new_open(NULL, NULL, options, flags, &local_err);
} else {
if (fmt) {
options = qdict_new();
qdict_put(options, "driver", qstring_from_str(fmt));
}
blk = blk_new_open("hda", srcpath, NULL, options, flags, &local_err);
blk = blk_new_open(srcpath, NULL, options, flags, &local_err);
}
if (!blk) {

3
stubs/Makefile.objs
View File

@ -1,5 +1,6 @@
stub-obj-y += arch-query-cpu-def.o
stub-obj-y += bdrv-commit-all.o
stub-obj-y += bdrv-next-monitor-owned.o
stub-obj-y += blk-commit-all.o
stub-obj-y += blockdev-close-all-bdrv-states.o
stub-obj-y += clock-warp.o
stub-obj-y += cpu-get-clock.o

8
stubs/bdrv-next-monitor-owned.c Normal file
View File

@ -0,0 +1,8 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "block/block.h"
BlockDriverState *bdrv_next_monitor_owned(BlockDriverState *bs)
{
return NULL;
}

4
stubs/bdrv-commit-all.c → stubs/blk-commit-all.c
View File

@ -1,8 +1,8 @@
#include "qemu/osdep.h"
#include "qemu-common.h"
#include "block/block.h"
#include "sysemu/block-backend.h"
int bdrv_commit_all(void)
int blk_commit_all(void)
{
return 0;
}

16
tests/qemu-iotests/036.out
View File

@ -22,18 +22,18 @@ autoclear_features 0x0
refcount_order 4
header_length 104
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': 'image' uses a IMGFMT feature which is not supported by this qemu version: Unknown incompatible feature: 8000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': 'image' uses a IMGFMT feature which is not supported by this qemu version: Test feature
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): Unknown incompatible feature: 8000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): Test feature
=== Image with multiple incompatible feature bits ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': 'image' uses a IMGFMT feature which is not supported by this qemu version: Unknown incompatible feature: e000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': 'image' uses a IMGFMT feature which is not supported by this qemu version: Test feature, Unknown incompatible feature: 6000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': 'image' uses a IMGFMT feature which is not supported by this qemu version: Test feature, Unknown incompatible feature: c000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': 'image' uses a IMGFMT feature which is not supported by this qemu version: test1, test2, Unknown incompatible feature: 8000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': 'image' uses a IMGFMT feature which is not supported by this qemu version: test1, test2, test3
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': 'image' uses a IMGFMT feature which is not supported by this qemu version: test2, Unknown incompatible feature: a000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): Unknown incompatible feature: e000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): Test feature, Unknown incompatible feature: 6000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): Test feature, Unknown incompatible feature: c000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): test1, test2, Unknown incompatible feature: 8000000000000000
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): test1, test2, test3
qemu-img: Could not open 'TEST_DIR/t.IMGFMT': Unsupported IMGFMT feature(s): test2, Unknown incompatible feature: a000000000000000
=== Create image with unknown autoclear feature bit ===
Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=67108864

8
tests/qemu-iotests/051.out
View File

@ -5,16 +5,16 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/
=== Unknown option ===
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=,if=none,id=drive0: Block format 'qcow2' used by device 'drive0' doesn't support the option 'unknown_opt'
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=on,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=on,if=none,id=drive0: Block format 'qcow2' used by device 'drive0' doesn't support the option 'unknown_opt'
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=on,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=1234,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=1234,if=none,id=drive0: Block format 'qcow2' used by device 'drive0' doesn't support the option 'unknown_opt'
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=1234,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=foo,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=foo,if=none,id=drive0: Block format 'qcow2' used by device 'drive0' doesn't support the option 'unknown_opt'
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=foo,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
=== Unknown protocol option ===

8
tests/qemu-iotests/051.pc.out
View File

@ -5,16 +5,16 @@ Formatting 'TEST_DIR/t.IMGFMT', fmt=IMGFMT size=134217728 backing_file=TEST_DIR/
=== Unknown option ===
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=,if=none,id=drive0: Block format 'qcow2' used by device 'drive0' doesn't support the option 'unknown_opt'
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=on,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=on,if=none,id=drive0: Block format 'qcow2' used by device 'drive0' doesn't support the option 'unknown_opt'
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=on,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=1234,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=1234,if=none,id=drive0: Block format 'qcow2' used by device 'drive0' doesn't support the option 'unknown_opt'
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=1234,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
Testing: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=foo,if=none,id=drive0
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=foo,if=none,id=drive0: Block format 'qcow2' used by device 'drive0' doesn't support the option 'unknown_opt'
QEMU_PROG: -drive file=TEST_DIR/t.qcow2,format=qcow2,unknown_opt=foo,if=none,id=drive0: Block format 'qcow2' does not support the option 'unknown_opt'
=== Unknown protocol option ===

2
tests/qemu-iotests/087.out
View File

@ -21,7 +21,7 @@ QMP_VERSION
{"error": {"class": "GenericError", "desc": "Device name 'test-node' conflicts with an existing node name"}}
{"error": {"class": "GenericError", "desc": "node-name=disk is conflicting with a device id"}}
{"error": {"class": "GenericError", "desc": "Duplicate node name"}}
{"error": {"class": "GenericError", "desc": "node-name=disk3 is conflicting with a device id"}}
{"error": {"class": "GenericError", "desc": "Device name 'disk3' conflicts with an existing node name"}}
{"return": {}}
{"timestamp": {"seconds": TIMESTAMP, "microseconds": TIMESTAMP}, "event": "SHUTDOWN"}

17
tests/qemu-iotests/148
View File

@ -35,6 +35,7 @@ sector_size = 512
offset = 10
class TestQuorumEvents(iotests.QMPTestCase):
read_pattern = 'quorum'
def create_blkdebug_file(self, blkdebug_file, bad_sector):
file = open(blkdebug_file, 'w')
@ -48,6 +49,7 @@ sector = "%d"
def setUp(self):
driveopts = ['driver=quorum', 'vote-threshold=2']
driveopts.append('read-pattern=%s' % self.read_pattern)
for i in range(len(imgs)):
iotests.qemu_img('create', '-f', iotests.imgfmt, imgs[i], '1M')
self.create_blkdebug_file(img_conf[i], i + offset)
@ -112,7 +114,11 @@ sector = "%d"
self.vm.hmp_qemu_io("drive0", "aio_read %d %d" %
((offset + i) * sector_size, sector_size))
self.vm.qtest("clock_step %d" % delay)
self.do_check_event('img%d' % i, offset + i)
# In fifo mode only errors in the first child are detected
if i > 0 and self.read_pattern == 'fifo':
self.do_check_event(None)
else:
self.do_check_event('img%d' % i, offset + i)
# I/O errors in different children: all events are emitted
delay = 2 * event_rate
@ -120,10 +126,17 @@ sector = "%d"
self.vm.hmp_qemu_io("drive0", "aio_read %d %d" %
((offset + i) * sector_size, sector_size))
self.vm.qtest("clock_step %d" % delay)
self.do_check_event('img%d' % i, offset + i)
# In fifo mode only errors in the first child are detected
if i > 0 and self.read_pattern == 'fifo':
self.do_check_event(None)
else:
self.do_check_event('img%d' % i, offset + i)
# No more pending events
self.do_check_event(None)
class TestFifoQuorumEvents(TestQuorumEvents):
read_pattern = 'fifo'
if __name__ == '__main__':
iotests.main(supported_fmts=["raw"])

4
tests/qemu-iotests/148.out
View File

@ -1,5 +1,5 @@
.
..
----------------------------------------------------------------------
Ran 1 tests
Ran 2 tests
OK