Re: [uml-devel] [PATCH] Update UBD to use pread/pwrite family of functions

[Anton Ivanov <anton.ivanov@kot-begemot.co.uk>]

On 23/11/15 22:24, Richard Weinberger wrote:
> On Fri, Nov 20, 2015 at 7:47 PM, Anton Ivanov
> <anton.ivanov@kot-begemot.co.uk> wrote:
>> Hi list, hi Richard.
>>
>> Have you had time to review this one? I think it is not contentious - it
>> is something QEMU has been doing for a very long time now. It also gives
>> a measurable speed up, especially for random IO.
>>
>> I am going to hold off on the rest of the ubd patches because they bulk
>> up the transactions. This is dangerous if you end up in a reentrant
>> situation.
> Sorry for the delay.
> The patch looks useful! Thanks a lot!
>
> Please CC me in future such that patches don't get lost.

OK.

I have a few that follow it to improve UBD even further, but I am going 
to hold them off for now until we have the IRQ controller sorted.

Multi-read/write and irq/io handler reentrancy do not get along very well :(

A.

> I handle CC'ed mails with higher priority.
> (This is my way to deal with the LKML storm ;))
>


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