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block: bdrv_img_create(): add Error ** argument
This commit adds an Error ** argument to bdrv_img_create() and set it appropriately on error. Callers of bdrv_img_create() pass NULL for the new argument and still rely on bdrv_img_create()'s return value. Next commits will change callers to use the Error object instead. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Luiz Capitulino
Kevin Wolf
parent
3c42ea6688
commit
71c79813d8
22
block.c
22
block.c
@ -4444,7 +4444,7 @@ bdrv_acct_done(BlockDriverState *bs, BlockAcctCookie *cookie)
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int bdrv_img_create(const char *filename, const char *fmt,
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const char *base_filename, const char *base_fmt,
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char *options, uint64_t img_size, int flags)
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char *options, uint64_t img_size, int flags, Error **errp)
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{
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QEMUOptionParameter *param = NULL, *create_options = NULL;
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QEMUOptionParameter *backing_fmt, *backing_file, *size;
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@ -4457,6 +4457,7 @@ int bdrv_img_create(const char *filename, const char *fmt,
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drv = bdrv_find_format(fmt);
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if (!drv) {
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error_report("Unknown file format '%s'", fmt);
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error_setg(errp, "Unknown file format '%s'", fmt);
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ret = -EINVAL;
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goto out;
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}
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@ -4464,6 +4465,7 @@ int bdrv_img_create(const char *filename, const char *fmt,
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proto_drv = bdrv_find_protocol(filename);
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if (!proto_drv) {
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error_report("Unknown protocol '%s'", filename);
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error_setg(errp, "Unknown protocol '%s'", filename);
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ret = -EINVAL;
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goto out;
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}
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@ -4483,6 +4485,7 @@ int bdrv_img_create(const char *filename, const char *fmt,
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param = parse_option_parameters(options, create_options, param);
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if (param == NULL) {
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error_report("Invalid options for file format '%s'.", fmt);
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error_setg(errp, "Invalid options for file format '%s'.", fmt);
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ret = -EINVAL;
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goto out;
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}
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@ -4493,6 +4496,8 @@ int bdrv_img_create(const char *filename, const char *fmt,
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base_filename)) {
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error_report("Backing file not supported for file format '%s'",
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fmt);
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error_setg(errp, "Backing file not supported for file format '%s'",
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fmt);
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ret = -EINVAL;
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goto out;
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}
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@ -4502,6 +4507,8 @@ int bdrv_img_create(const char *filename, const char *fmt,
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if (set_option_parameter(param, BLOCK_OPT_BACKING_FMT, base_fmt)) {
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error_report("Backing file format not supported for file "
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"format '%s'", fmt);
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error_setg(errp, "Backing file format not supported for file "
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"format '%s'", fmt);
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ret = -EINVAL;
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goto out;
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}
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@ -4512,6 +4519,8 @@ int bdrv_img_create(const char *filename, const char *fmt,
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if (!strcmp(filename, backing_file->value.s)) {
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error_report("Error: Trying to create an image with the "
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"same filename as the backing file");
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error_setg(errp, "Error: Trying to create an image with the "
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"same filename as the backing file");
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ret = -EINVAL;
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goto out;
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}
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@ -4523,6 +4532,8 @@ int bdrv_img_create(const char *filename, const char *fmt,
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if (!backing_drv) {
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error_report("Unknown backing file format '%s'",
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backing_fmt->value.s);
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error_setg(errp, "Unknown backing file format '%s'",
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backing_fmt->value.s);
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ret = -EINVAL;
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goto out;
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}
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@ -4546,6 +4557,8 @@ int bdrv_img_create(const char *filename, const char *fmt,
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ret = bdrv_open(bs, backing_file->value.s, back_flags, backing_drv);
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if (ret < 0) {
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error_report("Could not open '%s'", backing_file->value.s);
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error_setg_errno(errp, -ret, "Could not open '%s'",
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backing_file->value.s);
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goto out;
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}
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bdrv_get_geometry(bs, &size);
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@ -4555,6 +4568,7 @@ int bdrv_img_create(const char *filename, const char *fmt,
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set_option_parameter(param, BLOCK_OPT_SIZE, buf);
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} else {
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error_report("Image creation needs a size parameter");
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error_setg(errp, "Image creation needs a size parameter");
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ret = -EINVAL;
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goto out;
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}
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@ -4570,12 +4584,18 @@ int bdrv_img_create(const char *filename, const char *fmt,
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if (ret == -ENOTSUP) {
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error_report("Formatting or formatting option not supported for "
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"file format '%s'", fmt);
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error_setg(errp,"Formatting or formatting option not supported for "
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"file format '%s'", fmt);
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} else if (ret == -EFBIG) {
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error_report("The image size is too large for file format '%s'",
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fmt);
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error_setg(errp, "The image size is too large for file format '%s'",
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fmt);
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} else {
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error_report("%s: error while creating %s: %s", filename, fmt,
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strerror(-ret));
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error_setg(errp, "%s: error while creating %s: %s", filename, fmt,
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strerror(-ret));
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}
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}
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2
block.h
2
block.h
@ -345,7 +345,7 @@ int bdrv_load_vmstate(BlockDriverState *bs, uint8_t *buf,
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int bdrv_img_create(const char *filename, const char *fmt,
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const char *base_filename, const char *base_fmt,
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char *options, uint64_t img_size, int flags);
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char *options, uint64_t img_size, int flags, Error **errp);
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void bdrv_set_buffer_alignment(BlockDriverState *bs, int align);
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void *qemu_blockalign(BlockDriverState *bs, size_t size);
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@ -789,7 +789,7 @@ void qmp_transaction(BlockdevActionList *dev_list, Error **errp)
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ret = bdrv_img_create(new_image_file, format,
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states->old_bs->filename,
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states->old_bs->drv->format_name,
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NULL, -1, flags);
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NULL, -1, flags, NULL);
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if (ret) {
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error_set(errp, QERR_OPEN_FILE_FAILED, new_image_file);
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goto delete_and_fail;
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@ -1264,7 +1264,7 @@ void qmp_drive_mirror(const char *device, const char *target,
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bdrv_get_geometry(bs, &size);
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size *= 512;
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ret = bdrv_img_create(target, format,
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NULL, NULL, NULL, size, flags);
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NULL, NULL, NULL, size, flags, NULL);
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} else {
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switch (mode) {
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case NEW_IMAGE_MODE_EXISTING:
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@ -1275,7 +1275,7 @@ void qmp_drive_mirror(const char *device, const char *target,
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ret = bdrv_img_create(target, format,
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source->filename,
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source->drv->format_name,
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NULL, -1, flags);
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NULL, -1, flags, NULL);
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break;
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default:
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abort();
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@ -362,7 +362,7 @@ static int img_create(int argc, char **argv)
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}
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ret = bdrv_img_create(filename, fmt, base_filename, base_fmt,
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options, img_size, BDRV_O_FLAGS);
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options, img_size, BDRV_O_FLAGS, NULL);
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out:
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if (ret) {
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return 1;
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