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Re: [Qemu-block] [Qemu-devel] [PATCH 02/11] block: make write-threshold
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From: |
Eric Blake |
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Subject: |
Re: [Qemu-block] [Qemu-devel] [PATCH 02/11] block: make write-threshold thread-safe |
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Date: |
Thu, 6 Jul 2017 11:52:46 -0500 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 |
On 07/06/2017 11:38 AM, Paolo Bonzini wrote:
> For simplicity, use bdrv_drained_begin/end to avoid concurrent
> writes to the write threshold, or reading it while it is being set.
> qmp_block_set_write_threshold is protected by the BQL.
>
> Signed-off-by: Paolo Bonzini <address@hidden>
> ---
> block/write-threshold.c | 9 +++------
> 1 file changed, 3 insertions(+), 6 deletions(-)
>
Reviewed-by: Eric Blake <address@hidden>
--
Eric Blake, Principal Software Engineer
Red Hat, Inc. +1-919-301-3266
Virtualization: qemu.org | libvirt.org
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