Re: [Qemu-devel] [PATCH v13 2/6] block: don't convert file size to sector size

[Kevin Wolf <kwolf@redhat.com>]

Am 29.08.2014 um 10:33 hat Hu Tao geschrieben:
> and avoid converting it back later.
> 
> Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>

> diff --git a/block/raw-posix.c b/block/raw-posix.c
> index 9c22e3f..abe0759 100644
> --- a/block/raw-posix.c
> +++ b/block/raw-posix.c
> @@ -1369,8 +1369,8 @@ static int raw_create(const char *filename, QemuOpts *opts, Error **errp)
>      strstart(filename, "file:", &filename);
>  
>      /* Read out options */
> -    total_size = DIV_ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
> -                              BDRV_SECTOR_SIZE);
> +    total_size = ROUND_UP(qemu_opt_get_size_del(opts, BLOCK_OPT_SIZE, 0),
> +                          BDRV_SECTOR_SIZE);
>      nocow = qemu_opt_get_bool(opts, BLOCK_OPT_NOCOW, false);
>  
>      fd = qemu_open(filename, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY,
> @@ -1394,7 +1394,7 @@ static int raw_create(const char *filename, QemuOpts *opts, Error **errp)
>  #endif
>          }
>  
> -        if (ftruncate(fd, total_size * BDRV_SECTOR_SIZE) != 0) {
> +        if (ftruncate(fd, total_size) != 0) {
>              result = -errno;
>              error_setg_errno(errp, -result, "Could not resize file");
>          }

You forgot changing hdev_create() in raw-posix. Doesn't make the patch
less correct, but you may want to add it for v14.

Kevin