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Re: [Qemu-devel] [PATCH v4 for-4.0 0/7] vhost-user-blk: Add support for

From: Stefan Hajnoczi
Subject: Re: [Qemu-devel] [PATCH v4 for-4.0 0/7] vhost-user-blk: Add support for backend reconnecting
Date: Thu, 10 Jan 2019 10:25:51 +0000
User-agent: Mutt/1.10.1 (2018-07-13)

On Wed, Jan 09, 2019 at 07:27:21PM +0800, address@hidden wrote:
> From: Xie Yongji <address@hidden>
> This patchset is aimed at supporting qemu to reconnect
> vhost-user-blk backend after vhost-user-blk backend crash or
> restart.
> The patch 1 uses exisiting wait/nowait options to make QEMU not
> do a connect on client sockets during initialization of the chardev.
> The patch 2 introduces two new messages VHOST_USER_GET_INFLIGHT_FD
> and VHOST_USER_SET_INFLIGHT_FD to support providing shared
> memory to backend.

Can you describe the problem that the inflight I/O shared memory region


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