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* [rbd] should we add iov support to read/write/aio_read/aio_write
@ 2016-10-28  8:36 Jaze Lee
  2016-10-28  8:45 ` Venky Shankar
  0 siblings, 1 reply; 3+ messages in thread
From: Jaze Lee @ 2016-10-28  8:36 UTC (permalink / raw)
  To: ceph-devel

Hi
    Should we add iov support at rbd level ?  I think add iov support
will be valuable for cloud vm which use ceph as the backend.





-- 
谦谦君子

^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [rbd] should we add iov support to read/write/aio_read/aio_write
  2016-10-28  8:36 [rbd] should we add iov support to read/write/aio_read/aio_write Jaze Lee
@ 2016-10-28  8:45 ` Venky Shankar
  2016-10-28 11:55   ` Jason Dillaman
  0 siblings, 1 reply; 3+ messages in thread
From: Venky Shankar @ 2016-10-28  8:45 UTC (permalink / raw)
  To: Jaze Lee; +Cc: ceph-devel, Jason Dillaman

On 16-10-28 16:36:18, Jaze Lee wrote:
> Hi
>     Should we add iov support at rbd level ?  I think add iov support
> will be valuable for cloud vm which use ceph as the backend.

There's already a WIP PR by Jason for this: https://github.com/ceph/ceph/pull/5898

Though it hasn't been worked on for quite some time.

> 
> 
> 
> 
> 
> -- 
> 谦谦君子
> --
> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
> the body of a message to majordomo@vger.kernel.org
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^ permalink raw reply	[flat|nested] 3+ messages in thread

* Re: [rbd] should we add iov support to read/write/aio_read/aio_write
  2016-10-28  8:45 ` Venky Shankar
@ 2016-10-28 11:55   ` Jason Dillaman
  0 siblings, 0 replies; 3+ messages in thread
From: Jason Dillaman @ 2016-10-28 11:55 UTC (permalink / raw)
  To: Venky Shankar; +Cc: Jaze Lee, ceph-devel

We'll definitely get it into librbd for the Luminous release and
hopefully get a patch submitted to qemu to conditionally use the new
API to eliminate an unnecessary buffer copy.

On Fri, Oct 28, 2016 at 4:45 AM, Venky Shankar <vshankar@redhat.com> wrote:
> On 16-10-28 16:36:18, Jaze Lee wrote:
>> Hi
>>     Should we add iov support at rbd level ?  I think add iov support
>> will be valuable for cloud vm which use ceph as the backend.
>
> There's already a WIP PR by Jason for this: https://github.com/ceph/ceph/pull/5898
>
> Though it hasn't been worked on for quite some time.
>
>>
>>
>>
>>
>>
>> --
>> 谦谦君子
>> --
>> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html



-- 
Jason

^ permalink raw reply	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2016-10-28 11:55 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
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2016-10-28  8:36 [rbd] should we add iov support to read/write/aio_read/aio_write Jaze Lee
2016-10-28  8:45 ` Venky Shankar
2016-10-28 11:55   ` Jason Dillaman

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