diff options
Diffstat (limited to 'qemu-img.c')
| -rw-r--r-- | qemu-img.c | 61 |
1 files changed, 36 insertions, 25 deletions
diff --git a/qemu-img.c b/qemu-img.c index 5fac840742..e6ad5978e0 100644 --- a/qemu-img.c +++ b/qemu-img.c @@ -85,13 +85,11 @@ static void QEMU_NORETURN GCC_FMT_ATTR(1, 2) error_exit(const char *fmt, ...) { va_list ap; - error_printf("qemu-img: "); - va_start(ap, fmt); - error_vprintf(fmt, ap); + error_vreport(fmt, ap); va_end(ap); - error_printf("\nTry 'qemu-img --help' for more information\n"); + error_printf("Try 'qemu-img --help' for more information\n"); exit(EXIT_FAILURE); } @@ -269,9 +267,20 @@ static int print_block_option_help(const char *filename, const char *fmt) create_opts = qemu_opts_append(create_opts, proto_drv->create_opts); } - printf("Supported options:\n"); + if (filename) { + printf("Supported options:\n"); + } else { + printf("Supported %s options:\n", fmt); + } qemu_opts_print_help(create_opts, false); qemu_opts_free(create_opts); + + if (!filename) { + printf("\n" + "The protocol level may support further options.\n" + "Specify the target filename to include those options.\n"); + } + return 0; } @@ -1630,6 +1639,8 @@ static int convert_iteration_sectors(ImgConvertState *s, int64_t sector_num) count, &count, NULL, NULL); } if (ret < 0) { + error_report("error while reading block status of sector %" PRId64 + ": %s", sector_num, strerror(-ret)); return ret; } n = DIV_ROUND_UP(count, BDRV_SECTOR_SIZE); @@ -1669,7 +1680,6 @@ static int coroutine_fn convert_co_read(ImgConvertState *s, int64_t sector_num, int nb_sectors, uint8_t *buf) { int n, ret; - QEMUIOVector qiov; assert(nb_sectors <= s->buf_sectors); while (nb_sectors > 0) { @@ -1685,11 +1695,10 @@ static int coroutine_fn convert_co_read(ImgConvertState *s, int64_t sector_num, bs_sectors = s->src_sectors[src_cur]; n = MIN(nb_sectors, bs_sectors - (sector_num - src_cur_offset)); - qemu_iovec_init_buf(&qiov, buf, n << BDRV_SECTOR_BITS); - ret = blk_co_preadv( + ret = blk_co_pread( blk, (sector_num - src_cur_offset) << BDRV_SECTOR_BITS, - n << BDRV_SECTOR_BITS, &qiov, 0); + n << BDRV_SECTOR_BITS, buf, 0); if (ret < 0) { return ret; } @@ -1708,7 +1717,6 @@ static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num, enum ImgConvertBlockStatus status) { int ret; - QEMUIOVector qiov; while (nb_sectors > 0) { int n = nb_sectors; @@ -1736,10 +1744,8 @@ static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num, (s->compressed && !buffer_is_zero(buf, n * BDRV_SECTOR_SIZE))) { - qemu_iovec_init_buf(&qiov, buf, n << BDRV_SECTOR_BITS); - - ret = blk_co_pwritev(s->target, sector_num << BDRV_SECTOR_BITS, - n << BDRV_SECTOR_BITS, &qiov, flags); + ret = blk_co_pwrite(s->target, sector_num << BDRV_SECTOR_BITS, + n << BDRV_SECTOR_BITS, buf, flags); if (ret < 0) { return ret; } @@ -1754,7 +1760,8 @@ static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num, } ret = blk_co_pwrite_zeroes(s->target, sector_num << BDRV_SECTOR_BITS, - n << BDRV_SECTOR_BITS, 0); + n << BDRV_SECTOR_BITS, + BDRV_REQ_MAY_UNMAP); if (ret < 0) { return ret; } @@ -1932,7 +1939,7 @@ static int convert_do_copy(ImgConvertState *s) if (!s->has_zero_init && !s->target_has_backing && bdrv_can_write_zeroes_with_unmap(blk_bs(s->target))) { - ret = blk_make_zero(s->target, BDRV_REQ_MAY_UNMAP); + ret = blk_make_zero(s->target, BDRV_REQ_MAY_UNMAP | BDRV_REQ_NO_FALLBACK); if (ret == 0) { s->has_zero_init = true; } @@ -2482,11 +2489,11 @@ static void dump_snapshots(BlockDriverState *bs) if (nb_sns <= 0) return; printf("Snapshot list:\n"); - bdrv_snapshot_dump(fprintf, stdout, NULL); + bdrv_snapshot_dump(NULL); printf("\n"); for(i = 0; i < nb_sns; i++) { sn = &sn_tab[i]; - bdrv_snapshot_dump(fprintf, stdout, sn); + bdrv_snapshot_dump(sn); printf("\n"); } g_free(sn_tab); @@ -2535,7 +2542,7 @@ static void dump_human_image_info_list(ImageInfoList *list) } delim = true; - bdrv_image_info_dump(fprintf, stdout, elem->value); + bdrv_image_info_dump(elem->value); } } @@ -2734,14 +2741,14 @@ static int img_info(int argc, char **argv) return 0; } -static void dump_map_entry(OutputFormat output_format, MapEntry *e, - MapEntry *next) +static int dump_map_entry(OutputFormat output_format, MapEntry *e, + MapEntry *next) { switch (output_format) { case OFORMAT_HUMAN: if (e->data && !e->has_offset) { error_report("File contains external, encrypted or compressed clusters."); - exit(1); + return -1; } if (e->data && !e->zero) { printf("%#-16"PRIx64"%#-16"PRIx64"%#-16"PRIx64"%s\n", @@ -2774,6 +2781,7 @@ static void dump_map_entry(OutputFormat output_format, MapEntry *e, } break; } + return 0; } static int get_block_status(BlockDriverState *bs, int64_t offset, @@ -2966,12 +2974,15 @@ static int img_map(int argc, char **argv) } if (curr.length > 0) { - dump_map_entry(output_format, &curr, &next); + ret = dump_map_entry(output_format, &curr, &next); + if (ret < 0) { + goto out; + } } curr = next; } - dump_map_entry(output_format, &curr, NULL); + ret = dump_map_entry(output_format, &curr, NULL); out: blk_unref(blk); @@ -4916,8 +4927,8 @@ int main(int argc, char **argv) signal(SIGPIPE, SIG_IGN); #endif + error_init(argv[0]); module_call_init(MODULE_INIT_TRACE); - error_set_progname(argv[0]); qemu_init_exec_dir(argv[0]); if (qemu_init_main_loop(&local_error)) { |