From: Jens Axboe <[email protected]>
To: Josef <[email protected]>, [email protected]
Cc: [email protected]
Subject: Re: SQPOLL question
Date: Sun, 6 Sep 2020 10:25:49 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <CAAss7+qjPqGMMLQAtdRDDpp_4s1RFexXtn7-5Sxo7SAdxHX3Zg@mail.gmail.com>
On 9/6/20 10:24 AM, Josef wrote:
>> You're using the 'fd' as the file descriptor, for registered files
>> you want to use the index instead. Since it's the only fd you
>> registered, the index would be 0 and that's what you should use.
>
> oh..yeah it works, thanks :)
Great!
>> It's worth mentioning that for 5.10 and on, SQPOLL will no longer
>> require registered files.
>
> that's awesome, it would be really handy as I just implemented a kind
> of workaround in netty :)
On top of that, capabilities will also be reduced from root to
CAP_SYS_NICE instead, and sharing across rings for the SQPOLL thread
will be supported. So it'll be a lot more useful/flexible in general.
--
Jens Axboe
next prev parent reply other threads:[~2020-09-06 16:26 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-06 15:44 SQPOLL question Josef
2020-09-06 15:49 ` Jens Axboe
2020-09-06 16:24 ` Josef
2020-09-06 16:25 ` Jens Axboe [this message]
2020-09-07 10:23 ` Josef
2020-09-07 12:49 ` Jens Axboe
2020-09-07 14:58 ` Josef
2020-09-07 15:51 ` Jens Axboe
2020-09-08 6:47 ` Josef
2020-09-08 14:36 ` Jens Axboe
2020-09-08 14:57 ` Jens Axboe
2020-09-08 17:42 ` Josef
2020-09-08 17:46 ` Jens Axboe
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