block: rename .bdrv_create() to .bdrv_co_create_opts()

BlockDriver->bdrv_create() has been called from coroutine context since
commit 5b7e1542cf ("block: make
bdrv_create adopt coroutine").

Make this explicit by renaming to .bdrv_co_create_opts() and add the
coroutine_fn annotation.  This makes it obvious to block driver authors
that they may yield, use CoMutex, or other coroutine_fn APIs.
bdrv_co_create is reserved for the QAPI-based version that Kevin is
working on.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20170705102231.20711-2-stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Stefan Hajnoczi 2018-01-18 13:43:45 +01:00 committed by Kevin Wolf
parent 13471a40c1
commit efc75e2a4c
20 changed files with 74 additions and 54 deletions

View File

@ -420,7 +420,7 @@ static void coroutine_fn bdrv_create_co_entry(void *opaque)
CreateCo *cco = opaque;
assert(cco->drv);
ret = cco->drv->bdrv_create(cco->filename, cco->opts, &local_err);
ret = cco->drv->bdrv_co_create_opts(cco->filename, cco->opts, &local_err);
error_propagate(&cco->err, local_err);
cco->ret = ret;
}
@ -439,7 +439,7 @@ int bdrv_create(BlockDriver *drv, const char* filename,
.err = NULL,
};
if (!drv->bdrv_create) {
if (!drv->bdrv_co_create_opts) {
error_setg(errp, "Driver '%s' does not support image creation", drv->format_name);
ret = -ENOTSUP;
goto out;

View File

@ -556,9 +556,9 @@ static int block_crypto_open_luks(BlockDriverState *bs,
bs, options, flags, errp);
}
static int block_crypto_create_luks(const char *filename,
QemuOpts *opts,
Error **errp)
static int coroutine_fn block_crypto_co_create_opts_luks(const char *filename,
QemuOpts *opts,
Error **errp)
{
return block_crypto_create_generic(Q_CRYPTO_BLOCK_FORMAT_LUKS,
filename, opts, errp);
@ -617,7 +617,7 @@ BlockDriver bdrv_crypto_luks = {
.bdrv_open = block_crypto_open_luks,
.bdrv_close = block_crypto_close,
.bdrv_child_perm = bdrv_format_default_perms,
.bdrv_create = block_crypto_create_luks,
.bdrv_co_create_opts = block_crypto_co_create_opts_luks,
.bdrv_truncate = block_crypto_truncate,
.create_opts = &block_crypto_create_opts_luks,

View File

@ -1982,7 +1982,8 @@ static int64_t raw_get_allocated_file_size(BlockDriverState *bs)
return (int64_t)st.st_blocks * 512;
}
static int raw_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn raw_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
int fd;
int result = 0;
@ -2276,7 +2277,7 @@ BlockDriver bdrv_file = {
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
.bdrv_close = raw_close,
.bdrv_create = raw_create,
.bdrv_co_create_opts = raw_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_co_block_status = raw_co_block_status,
.bdrv_co_pwrite_zeroes = raw_co_pwrite_zeroes,
@ -2680,8 +2681,8 @@ static coroutine_fn int hdev_co_pwrite_zeroes(BlockDriverState *bs,
return -ENOTSUP;
}
static int hdev_create(const char *filename, QemuOpts *opts,
Error **errp)
static int coroutine_fn hdev_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
int fd;
int ret = 0;
@ -2754,7 +2755,7 @@ static BlockDriver bdrv_host_device = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
.bdrv_create = hdev_create,
.bdrv_co_create_opts = hdev_co_create_opts,
.create_opts = &raw_create_opts,
.bdrv_co_pwrite_zeroes = hdev_co_pwrite_zeroes,
@ -2876,7 +2877,7 @@ static BlockDriver bdrv_host_cdrom = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
.bdrv_create = hdev_create,
.bdrv_co_create_opts = hdev_co_create_opts,
.create_opts = &raw_create_opts,
@ -3007,7 +3008,7 @@ static BlockDriver bdrv_host_cdrom = {
.bdrv_reopen_prepare = raw_reopen_prepare,
.bdrv_reopen_commit = raw_reopen_commit,
.bdrv_reopen_abort = raw_reopen_abort,
.bdrv_create = hdev_create,
.bdrv_co_create_opts = hdev_co_create_opts,
.create_opts = &raw_create_opts,
.bdrv_co_preadv = raw_co_preadv,

View File

@ -553,7 +553,8 @@ static int64_t raw_get_allocated_file_size(BlockDriverState *bs)
return st.st_size;
}
static int raw_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn raw_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
int fd;
int64_t total_size = 0;
@ -599,7 +600,7 @@ BlockDriver bdrv_file = {
.bdrv_file_open = raw_open,
.bdrv_refresh_limits = raw_probe_alignment,
.bdrv_close = raw_close,
.bdrv_create = raw_create,
.bdrv_co_create_opts = raw_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_aio_readv = raw_aio_readv,

View File

@ -1021,8 +1021,9 @@ static int qemu_gluster_do_truncate(struct glfs_fd *fd, int64_t offset,
return 0;
}
static int qemu_gluster_create(const char *filename,
QemuOpts *opts, Error **errp)
static int coroutine_fn qemu_gluster_co_create_opts(const char *filename,
QemuOpts *opts,
Error **errp)
{
BlockdevOptionsGluster *gconf;
struct glfs *glfs;
@ -1435,7 +1436,7 @@ static BlockDriver bdrv_gluster = {
.bdrv_reopen_commit = qemu_gluster_reopen_commit,
.bdrv_reopen_abort = qemu_gluster_reopen_abort,
.bdrv_close = qemu_gluster_close,
.bdrv_create = qemu_gluster_create,
.bdrv_co_create_opts = qemu_gluster_co_create_opts,
.bdrv_getlength = qemu_gluster_getlength,
.bdrv_get_allocated_file_size = qemu_gluster_allocated_file_size,
.bdrv_truncate = qemu_gluster_truncate,
@ -1463,7 +1464,7 @@ static BlockDriver bdrv_gluster_tcp = {
.bdrv_reopen_commit = qemu_gluster_reopen_commit,
.bdrv_reopen_abort = qemu_gluster_reopen_abort,
.bdrv_close = qemu_gluster_close,
.bdrv_create = qemu_gluster_create,
.bdrv_co_create_opts = qemu_gluster_co_create_opts,
.bdrv_getlength = qemu_gluster_getlength,
.bdrv_get_allocated_file_size = qemu_gluster_allocated_file_size,
.bdrv_truncate = qemu_gluster_truncate,
@ -1491,7 +1492,7 @@ static BlockDriver bdrv_gluster_unix = {
.bdrv_reopen_commit = qemu_gluster_reopen_commit,
.bdrv_reopen_abort = qemu_gluster_reopen_abort,
.bdrv_close = qemu_gluster_close,
.bdrv_create = qemu_gluster_create,
.bdrv_co_create_opts = qemu_gluster_co_create_opts,
.bdrv_getlength = qemu_gluster_getlength,
.bdrv_get_allocated_file_size = qemu_gluster_allocated_file_size,
.bdrv_truncate = qemu_gluster_truncate,
@ -1525,7 +1526,7 @@ static BlockDriver bdrv_gluster_rdma = {
.bdrv_reopen_commit = qemu_gluster_reopen_commit,
.bdrv_reopen_abort = qemu_gluster_reopen_abort,
.bdrv_close = qemu_gluster_close,
.bdrv_create = qemu_gluster_create,
.bdrv_co_create_opts = qemu_gluster_co_create_opts,
.bdrv_getlength = qemu_gluster_getlength,
.bdrv_get_allocated_file_size = qemu_gluster_allocated_file_size,
.bdrv_truncate = qemu_gluster_truncate,

View File

@ -2117,7 +2117,8 @@ static int iscsi_truncate(BlockDriverState *bs, int64_t offset,
return 0;
}
static int iscsi_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn iscsi_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
int ret = 0;
int64_t total_size = 0;
@ -2204,7 +2205,7 @@ static BlockDriver bdrv_iscsi = {
.bdrv_parse_filename = iscsi_parse_filename,
.bdrv_file_open = iscsi_open,
.bdrv_close = iscsi_close,
.bdrv_create = iscsi_create,
.bdrv_co_create_opts = iscsi_co_create_opts,
.create_opts = &iscsi_create_opts,
.bdrv_reopen_prepare = iscsi_reopen_prepare,
.bdrv_reopen_commit = iscsi_reopen_commit,
@ -2239,7 +2240,7 @@ static BlockDriver bdrv_iser = {
.bdrv_parse_filename = iscsi_parse_filename,
.bdrv_file_open = iscsi_open,
.bdrv_close = iscsi_close,
.bdrv_create = iscsi_create,
.bdrv_co_create_opts = iscsi_co_create_opts,
.create_opts = &iscsi_create_opts,
.bdrv_reopen_prepare = iscsi_reopen_prepare,
.bdrv_reopen_commit = iscsi_reopen_commit,

View File

@ -684,7 +684,8 @@ static QemuOptsList nfs_create_opts = {
}
};
static int nfs_file_create(const char *url, QemuOpts *opts, Error **errp)
static int coroutine_fn nfs_file_co_create_opts(const char *url, QemuOpts *opts,
Error **errp)
{
int64_t ret, total_size;
NFSClient *client = g_new0(NFSClient, 1);
@ -897,7 +898,7 @@ static BlockDriver bdrv_nfs = {
.bdrv_file_open = nfs_file_open,
.bdrv_close = nfs_file_close,
.bdrv_create = nfs_file_create,
.bdrv_co_create_opts = nfs_file_co_create_opts,
.bdrv_reopen_prepare = nfs_reopen_prepare,
.bdrv_co_preadv = nfs_co_preadv,

View File

@ -475,7 +475,9 @@ static int parallels_check(BlockDriverState *bs, BdrvCheckResult *res,
}
static int parallels_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn parallels_co_create_opts(const char *filename,
QemuOpts *opts,
Error **errp)
{
int64_t total_size, cl_size;
uint8_t tmp[BDRV_SECTOR_SIZE];
@ -796,7 +798,7 @@ static BlockDriver bdrv_parallels = {
.bdrv_co_readv = parallels_co_readv,
.bdrv_co_writev = parallels_co_writev,
.supports_backing = true,
.bdrv_create = parallels_create,
.bdrv_co_create_opts = parallels_co_create_opts,
.bdrv_check = parallels_check,
.create_opts = &parallels_create_opts,
};

View File

@ -810,7 +810,8 @@ static void qcow_close(BlockDriverState *bs)
error_free(s->migration_blocker);
}
static int qcow_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn qcow_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
int header_size, backing_filename_len, l1_size, shift, i;
QCowHeader header;
@ -1127,7 +1128,7 @@ static BlockDriver bdrv_qcow = {
.bdrv_close = qcow_close,
.bdrv_child_perm = bdrv_format_default_perms,
.bdrv_reopen_prepare = qcow_reopen_prepare,
.bdrv_create = qcow_create,
.bdrv_co_create_opts = qcow_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.supports_backing = true,

View File

@ -2916,7 +2916,8 @@ out:
return ret;
}
static int qcow2_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn qcow2_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
char *backing_file = NULL;
char *backing_fmt = NULL;
@ -4352,7 +4353,7 @@ BlockDriver bdrv_qcow2 = {
.bdrv_reopen_abort = qcow2_reopen_abort,
.bdrv_join_options = qcow2_join_options,
.bdrv_child_perm = bdrv_format_default_perms,
.bdrv_create = qcow2_create,
.bdrv_co_create_opts = qcow2_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_co_block_status = qcow2_co_block_status,

View File

@ -638,7 +638,9 @@ out:
return ret;
}
static int bdrv_qed_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn bdrv_qed_co_create_opts(const char *filename,
QemuOpts *opts,
Error **errp)
{
uint64_t image_size = 0;
uint32_t cluster_size = QED_DEFAULT_CLUSTER_SIZE;
@ -1564,7 +1566,7 @@ static BlockDriver bdrv_qed = {
.bdrv_close = bdrv_qed_close,
.bdrv_reopen_prepare = bdrv_qed_reopen_prepare,
.bdrv_child_perm = bdrv_format_default_perms,
.bdrv_create = bdrv_qed_create,
.bdrv_co_create_opts = bdrv_qed_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_co_block_status = bdrv_qed_co_block_status,
.bdrv_co_readv = bdrv_qed_co_readv,

View File

@ -396,7 +396,8 @@ static int raw_has_zero_init(BlockDriverState *bs)
return bdrv_has_zero_init(bs->file->bs);
}
static int raw_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn raw_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
return bdrv_create_file(filename, opts, errp);
}
@ -491,7 +492,7 @@ BlockDriver bdrv_raw = {
.bdrv_open = &raw_open,
.bdrv_close = &raw_close,
.bdrv_child_perm = bdrv_filter_default_perms,
.bdrv_create = &raw_create,
.bdrv_co_create_opts = &raw_co_create_opts,
.bdrv_co_preadv = &raw_co_preadv,
.bdrv_co_pwritev = &raw_co_pwritev,
.bdrv_co_pwrite_zeroes = &raw_co_pwrite_zeroes,

View File

@ -351,7 +351,9 @@ static QemuOptsList runtime_opts = {
},
};
static int qemu_rbd_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn qemu_rbd_co_create_opts(const char *filename,
QemuOpts *opts,
Error **errp)
{
Error *local_err = NULL;
int64_t bytes = 0;
@ -1132,7 +1134,7 @@ static BlockDriver bdrv_rbd = {
.bdrv_file_open = qemu_rbd_open,
.bdrv_close = qemu_rbd_close,
.bdrv_reopen_prepare = qemu_rbd_reopen_prepare,
.bdrv_create = qemu_rbd_create,
.bdrv_co_create_opts = qemu_rbd_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_get_info = qemu_rbd_getinfo,
.create_opts = &qemu_rbd_create_opts,

View File

@ -1959,8 +1959,8 @@ static int parse_block_size_shift(BDRVSheepdogState *s, QemuOpts *opt)
return 0;
}
static int sd_create(const char *filename, QemuOpts *opts,
Error **errp)
static int coroutine_fn sd_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
Error *err = NULL;
int ret = 0;
@ -3103,7 +3103,7 @@ static BlockDriver bdrv_sheepdog = {
.bdrv_reopen_commit = sd_reopen_commit,
.bdrv_reopen_abort = sd_reopen_abort,
.bdrv_close = sd_close,
.bdrv_create = sd_create,
.bdrv_co_create_opts = sd_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_getlength = sd_getlength,
.bdrv_get_allocated_file_size = sd_get_allocated_file_size,
@ -3139,7 +3139,7 @@ static BlockDriver bdrv_sheepdog_tcp = {
.bdrv_reopen_commit = sd_reopen_commit,
.bdrv_reopen_abort = sd_reopen_abort,
.bdrv_close = sd_close,
.bdrv_create = sd_create,
.bdrv_co_create_opts = sd_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_getlength = sd_getlength,
.bdrv_get_allocated_file_size = sd_get_allocated_file_size,
@ -3175,7 +3175,7 @@ static BlockDriver bdrv_sheepdog_unix = {
.bdrv_reopen_commit = sd_reopen_commit,
.bdrv_reopen_abort = sd_reopen_abort,
.bdrv_close = sd_close,
.bdrv_create = sd_create,
.bdrv_co_create_opts = sd_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_getlength = sd_getlength,
.bdrv_get_allocated_file_size = sd_get_allocated_file_size,

View File

@ -816,7 +816,8 @@ static QemuOptsList ssh_create_opts = {
}
};
static int ssh_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn ssh_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
int r, ret;
int64_t total_size = 0;
@ -1204,7 +1205,7 @@ static BlockDriver bdrv_ssh = {
.instance_size = sizeof(BDRVSSHState),
.bdrv_parse_filename = ssh_parse_filename,
.bdrv_file_open = ssh_file_open,
.bdrv_create = ssh_create,
.bdrv_co_create_opts = ssh_co_create_opts,
.bdrv_close = ssh_close,
.bdrv_has_zero_init = ssh_has_zero_init,
.bdrv_co_readv = ssh_co_readv,

View File

@ -716,7 +716,8 @@ nonallocating_write:
return ret;
}
static int vdi_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn vdi_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
int ret = 0;
uint64_t bytes = 0;
@ -894,7 +895,7 @@ static BlockDriver bdrv_vdi = {
.bdrv_close = vdi_close,
.bdrv_reopen_prepare = vdi_reopen_prepare,
.bdrv_child_perm = bdrv_format_default_perms,
.bdrv_create = vdi_create,
.bdrv_co_create_opts = vdi_co_create_opts,
.bdrv_has_zero_init = bdrv_has_zero_init_1,
.bdrv_co_block_status = vdi_co_block_status,
.bdrv_make_empty = vdi_make_empty,

View File

@ -1792,7 +1792,8 @@ exit:
* .---- ~ ----------- ~ ------------ ~ ---------------- ~ -----------.
* 1MB
*/
static int vhdx_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn vhdx_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
int ret = 0;
uint64_t image_size = (uint64_t) 2 * GiB;
@ -2003,7 +2004,7 @@ static BlockDriver bdrv_vhdx = {
.bdrv_child_perm = bdrv_format_default_perms,
.bdrv_co_readv = vhdx_co_readv,
.bdrv_co_writev = vhdx_co_writev,
.bdrv_create = vhdx_create,
.bdrv_co_create_opts = vhdx_co_create_opts,
.bdrv_get_info = vhdx_get_info,
.bdrv_check = vhdx_check,
.bdrv_has_zero_init = bdrv_has_zero_init_1,

View File

@ -1882,7 +1882,8 @@ static int filename_decompose(const char *filename, char *path, char *prefix,
return VMDK_OK;
}
static int vmdk_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn vmdk_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
int idx = 0;
BlockBackend *new_blk = NULL;
@ -2398,7 +2399,7 @@ static BlockDriver bdrv_vmdk = {
.bdrv_co_pwritev_compressed = vmdk_co_pwritev_compressed,
.bdrv_co_pwrite_zeroes = vmdk_co_pwrite_zeroes,
.bdrv_close = vmdk_close,
.bdrv_create = vmdk_create,
.bdrv_co_create_opts = vmdk_co_create_opts,
.bdrv_co_flush_to_disk = vmdk_co_flush,
.bdrv_co_block_status = vmdk_co_block_status,
.bdrv_get_allocated_file_size = vmdk_get_allocated_file_size,

View File

@ -897,7 +897,8 @@ static int create_fixed_disk(BlockBackend *blk, uint8_t *buf,
return ret;
}
static int vpc_create(const char *filename, QemuOpts *opts, Error **errp)
static int coroutine_fn vpc_co_create_opts(const char *filename, QemuOpts *opts,
Error **errp)
{
uint8_t buf[1024];
VHDFooter *footer = (VHDFooter *) buf;
@ -1095,7 +1096,7 @@ static BlockDriver bdrv_vpc = {
.bdrv_close = vpc_close,
.bdrv_reopen_prepare = vpc_reopen_prepare,
.bdrv_child_perm = bdrv_format_default_perms,
.bdrv_create = vpc_create,
.bdrv_co_create_opts = vpc_co_create_opts,
.bdrv_co_preadv = vpc_co_preadv,
.bdrv_co_pwritev = vpc_co_pwritev,

View File

@ -129,7 +129,8 @@ struct BlockDriver {
int (*bdrv_file_open)(BlockDriverState *bs, QDict *options, int flags,
Error **errp);
void (*bdrv_close)(BlockDriverState *bs);
int (*bdrv_create)(const char *filename, QemuOpts *opts, Error **errp);
int coroutine_fn (*bdrv_co_create_opts)(const char *filename, QemuOpts *opts,
Error **errp);
int (*bdrv_make_empty)(BlockDriverState *bs);
void (*bdrv_refresh_filename)(BlockDriverState *bs, QDict *options);