diff options
| -rw-r--r-- | block/file-posix.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/block/file-posix.c b/block/file-posix.c index ab12a2b..36ee89e 100644 --- a/block/file-posix.c +++ b/block/file-posix.c @@ -2730,6 +2730,16 @@ static int hdev_create(const char *filename, QemuOpts *opts, ret = -ENOSPC; } + if (!ret && total_size) { + uint8_t buf[BDRV_SECTOR_SIZE] = { 0 }; + int64_t zero_size = MIN(BDRV_SECTOR_SIZE, total_size); + if (lseek(fd, 0, SEEK_SET) == -1) { + ret = -errno; + } else { + ret = qemu_write_full(fd, buf, zero_size); + ret = ret == zero_size ? 0 : -errno; + } + } qemu_close(fd); return ret; } |