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Re: [PATCH v2 1/5] hbitmap: handle set/reset with zero length
From: |
Max Reitz |
Subject: |
Re: [PATCH v2 1/5] hbitmap: handle set/reset with zero length |
Date: |
Fri, 18 Oct 2019 17:29:19 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.1.0 |
On 11.10.19 11:07, Vladimir Sementsov-Ogievskiy wrote:
> Passing zero length to these functions leads to unpredicted results.
> Zero-length set/reset may occur in active-mirror, on zero-length write
> (which is unlikely, but not guaranteed to never happen).
>
> Let's just do nothing on zero-length request.
>
> Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
> ---
> util/hbitmap.c | 8 ++++++++
> 1 file changed, 8 insertions(+)
Reviewed-by: Max Reitz <address@hidden>
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- [PATCH v2 0/5] active-mirror: support unaligned guest operations, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [PATCH v2 3/5] block/block-backend: add blk_co_pwritev_part, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [PATCH v2 2/5] block/mirror: simplify do_sync_target_write, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [PATCH v2 4/5] block/mirror: support unaligned write in active mirror, Vladimir Sementsov-Ogievskiy, 2019/10/11
- [PATCH v2 5/5] Revert "mirror: Only mirror granularity-aligned chunks", Vladimir Sementsov-Ogievskiy, 2019/10/11
- [PATCH v2 1/5] hbitmap: handle set/reset with zero length, Vladimir Sementsov-Ogievskiy, 2019/10/11
- Re: [PATCH v2 1/5] hbitmap: handle set/reset with zero length,
Max Reitz <=
- Re: [PATCH v2 0/5] active-mirror: support unaligned guest operations, Max Reitz, 2019/10/18