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Re: [Qemu-devel] [RFC 07/24] qed: make qed_alloc_clusters round up offse
From: |
Kevin Wolf |
Subject: |
Re: [Qemu-devel] [RFC 07/24] qed: make qed_alloc_clusters round up offset to nearest cluster |
Date: |
Mon, 01 Aug 2011 15:51:16 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:5.0) Gecko/20110707 Thunderbird/5.0 |
Am 29.07.2011 06:49, schrieb Devin Nakamura:
> Signed-off-by: Devin Nakamura <address@hidden>
> ---
> block/qed.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/block/qed.c b/block/qed.c
> index 3970379..00cf895 100644
> --- a/block/qed.c
> +++ b/block/qed.c
> @@ -263,6 +263,9 @@ static int qed_read_string(BlockDriverState *file,
> uint64_t offset, size_t n,
> */
> static uint64_t qed_alloc_clusters(BDRVQEDState *s, unsigned int n)
> {
> + s->file_size = (s->file_size + s->header.cluster_size -1)
> + / s->header.cluster_size;
> + s->file_size *= s->header.cluster_size;
This looks a bit simpler:
s->file_size = qed_start_of_cluster(s->file_size +
s->header.cluster_size - 1);
Kevin
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