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Re: [Qemu-devel] [PATCH v2 06/16] block: add BDS field to count in-fligh
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From: |
Fam Zheng |
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Subject: |
Re: [Qemu-devel] [PATCH v2 06/16] block: add BDS field to count in-flight requests |
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Date: |
Thu, 17 Mar 2016 10:53:55 +0800 |
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User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Wed, 03/16 15:16, Paolo Bonzini wrote:
> Unlike tracked_requests, this field also counts throttled requests,
> and remains non-zero if an AIO operation needs a BH to be "really"
> completed.
>
> With this change, it is no longer necessary to have a dummy
> BdrvTrackedRequest for requests that are never serialising, and
> it is no longer necessary to poll the AioContext once after
> bdrv_requests_pending(bs) returns false.
>
> Signed-off-by: Paolo Bonzini <address@hidden>
Assuming this has no change from v1:
Reviewed-by: Fam Zheng <address@hidden>
- [Qemu-devel] [PATCH v2 00/16] AioContext fine-grained locking, part 1 of 3, including bdrv_drain rewrite, Paolo Bonzini, 2016/03/16
- [Qemu-devel] [PATCH v2 01/16] block: make bdrv_start_throttled_reqs return void, Paolo Bonzini, 2016/03/16
- [Qemu-devel] [PATCH v2 03/16] block: introduce bdrv_no_throttling_begin/end, Paolo Bonzini, 2016/03/16
- [Qemu-devel] [PATCH v2 02/16] block: move restarting of throttled reqs to block/throttle-groups.c, Paolo Bonzini, 2016/03/16
- [Qemu-devel] [PATCH v2 04/16] block: plug whole tree at once, introduce bdrv_io_unplugged_begin/end, Paolo Bonzini, 2016/03/16
- [Qemu-devel] [PATCH v2 06/16] block: add BDS field to count in-flight requests, Paolo Bonzini, 2016/03/16
- Re: [Qemu-devel] [PATCH v2 06/16] block: add BDS field to count in-flight requests,
Fam Zheng <=
- [Qemu-devel] [PATCH v2 05/16] mirror: use bottom half to re-enter coroutine, Paolo Bonzini, 2016/03/16
- [Qemu-devel] [PATCH v2 07/16] block: change drain to look only at one child at a time, Paolo Bonzini, 2016/03/16
- [Qemu-devel] [PATCH v2 09/16] block: wait for all pending I/O when doing synchronous requests, Paolo Bonzini, 2016/03/16
- [Qemu-devel] [PATCH v2 12/16] aio: introduce aio_context_in_iothread, Paolo Bonzini, 2016/03/16
- [Qemu-devel] [PATCH v2 11/16] sheepdog: disable dataplane, Paolo Bonzini, 2016/03/16