From: Jens Axboe <[email protected]>
To: Bijan Mottahedeh <[email protected]>
Cc: [email protected]
Subject: Re: [RFC 1/2] io_uring: disallow overlapping ranges for buffer registration
Date: Fri, 12 Jun 2020 09:16:17 -0600 [thread overview]
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
On 6/11/20 8:23 PM, Bijan Mottahedeh wrote:
> Buffer registration is expensive in terms of cpu/mem overhead and there
> seems no good reason to allow overlapping ranges.
There's also no good reason to disallow it imho, so not sure we should
be doing that.
--
Jens Axboe
next prev parent reply other threads:[~2020-06-12 15:16 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-12 2:23 [RFC 0/2] io_uring: disallow overlapping ranges for buffer registration Bijan Mottahedeh
2020-06-12 2:23 ` [RFC 1/2] " Bijan Mottahedeh
2020-06-12 15:16 ` Jens Axboe [this message]
2020-06-12 18:22 ` Bijan Mottahedeh
2020-06-14 15:56 ` Jens Axboe
2020-06-12 2:23 ` [RFC 2/2] io_uring: report pinned memory usage Bijan Mottahedeh
2020-06-12 15:16 ` Jens Axboe
2020-06-12 15:19 ` Jens Axboe
2020-06-12 15:50 ` Jens Axboe
2020-06-13 4:43 ` Bijan Mottahedeh
2020-06-14 15:57 ` Jens Axboe
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