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From: Jens Axboe <axboe@kernel.dk>
To: "Theodore Y. Ts'o" <tytso@mit.edu>
Cc: linux-ext4@vger.kernel.org,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] ext4: flag as supporting buffered async reads
Date: Tue, 25 Aug 2020 08:18:27 -0600	[thread overview]
Message-ID: <049a97db-c362-bcfb-59e5-4b1d2df59383@kernel.dk> (raw)
In-Reply-To: <7f0e2d99-5da2-237e-a894-0afddc0ace1e@kernel.dk>

On 8/24/20 4:56 AM, Jens Axboe wrote:
> On 8/22/20 9:48 AM, Jens Axboe wrote:
>> On 8/22/20 8:33 AM, Theodore Y. Ts'o wrote:
>>> On Fri, Aug 21, 2020 at 03:26:35PM -0600, Jens Axboe wrote:
>>>>>>> Resending this one, as I've been carrying it privately since May. The
>>>>>>> necessary bits are now upstream (and XFS/btrfs equiv changes as well),
>>>>>>> please consider this one for 5.9. Thanks!
>>>>>>
>>>>>> The necessary commit only hit upstream as of 5.9-rc1, unless I'm
>>>>>> missing something?  It's on my queue to send to Linus once I get my
>>>>>> (late) ext4 primary pull request for 5.9.
>>>>>
>>>>> Right, it went in at the start of the merge window for 5.9. Thanks Ted!
>>>>
>>>> Didn't see it in the queue that just sent in, is it still queued up?
>>>
>>> It wasn't in the queue which I queued up because that was based on
>>> 5.8-rc4.  Linus was a bit grumpy (fairly so) because it was late, and
>>> that's totally on me.
>>>
>>> He has said that he's going to start ignoring pull requests that
>>> aren't fixes only if this becomes a pattern, so while I can send him
>>> another pull request which will just have that one change, there are
>>> no guarantees he's going to take it at this late date.
>>>
>>> Sorry, when you sent me the commit saying that the changes that were
>>> needed were already upstream on August 3rd, I thought that meant that
>>> they were aready in Linus's tree.  I should have checked and noticed
>>> that that in fact "ext4: flag as supporting buffered async reads"
>>> wasn't compiling against Linus's upstream tree, so I didn't realize
>>> this needed to be handled as a special case during the merge window.
>>
>> Well to be honest, this kind of sucks. I've been posting it since May,
>> and the ideal approach would have been to just ack it and I could have
>> carried it in my tree. That's what we did for btrfs and XFS, both of
>> which have it.
>>
>> The required patches *were* upstreamed on August 3rd, which is why I
>> mentioned that. But yes, not in 5.8 or earlier, of course.
>>
>> So I suggest that you either include it for the next pull request for
>> Linus, or that I put it in with your ack. Either is fine with me. I'd
>> consider this a "dropping the ball" kind of thing, it's not like the
>> patch hasn't been in linux-next or hasn't been ready for months. This
>> isn't some "oh I wrote this feature after the merge window" event. It'd
>> be a real shame to ship 5.9 and ext4 not have support for the more
>> efficient async buffered reads, imho, especially since the two other
>> major local file systems already have it.
>>
>> Let me know what you think.
> 
> Ted, can you make a call on this, please? It's now post -rc2. Let's
> get this settled and included, one way or another.

Daily ping on this one...

-- 
Jens Axboe


  reply	other threads:[~2020-08-25 14:18 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-08-03 23:02 [PATCH] ext4: flag as supporting buffered async reads Jens Axboe
2020-08-11 14:31 ` Jens Axboe
2020-08-18 18:11 ` Theodore Y. Ts'o
2020-08-18 18:12   ` Jens Axboe
2020-08-21 21:26     ` Jens Axboe
2020-08-22 14:33       ` Theodore Y. Ts'o
2020-08-22 15:48         ` Jens Axboe
2020-08-24 10:56           ` Jens Axboe
2020-08-25 14:18             ` Jens Axboe [this message]
2020-08-27  1:54               ` Jens Axboe
2020-09-04  0:10                 ` Jens Axboe
2020-09-04  3:55                   ` Theodore Y. Ts'o
2020-09-04 14:51                     ` Jens Axboe
2020-09-04 15:25                       ` Darrick J. Wong
2020-09-15  4:45                     ` REGRESSION: 37f4a24c2469: blk-mq: centralise related handling into blk_mq_get_driver_tag Theodore Y. Ts'o
2020-09-15  7:33                       ` Ming Lei
2020-09-15 22:45                         ` Theodore Y. Ts'o
2020-09-15 23:09                           ` Ming Lei
2020-09-16 20:20                             ` Theodore Y. Ts'o
2020-09-17  2:20                               ` Ming Lei
2020-09-17 14:30                                 ` Theodore Y. Ts'o
2020-09-17 23:08                                   ` Ming Lei
2020-09-24  0:59                                   ` Ming Lei
2020-09-24 14:33                                     ` Theodore Y. Ts'o
2020-09-25  1:13                                       ` Theodore Y. Ts'o
2020-09-25  7:31                                         ` Ming Lei
2020-09-25 16:19                                           ` Ming Lei
2020-09-25 16:32                                             ` Shakeel Butt
2020-09-25 16:47                                               ` Shakeel Butt
2020-09-25 17:22                                                 ` Roman Gushchin
2020-09-25 17:17                                             ` Linus Torvalds
2020-09-25 17:22                                               ` Shakeel Butt
2020-09-25 17:35                                                 ` Shakeel Butt
2020-09-25 17:47                                                   ` Roman Gushchin
2020-09-25 17:58                                                     ` Shakeel Butt
2020-09-25 19:19                                                       ` Shakeel Butt
2020-09-25 20:56                                                         ` Roman Gushchin
2020-09-25 21:18                                                           ` Shakeel Butt
2020-09-27 17:38                                                             ` Theodore Y. Ts'o
2020-09-26  1:43                                                         ` Ming Lei
2020-09-26  6:42                                                           ` Roman Gushchin
2020-09-25  1:14                                       ` Ming Lei
2020-09-25  2:34                                         ` Ming Lei
2020-10-02 20:08 ` [PATCH] ext4: flag as supporting buffered async reads Theodore Y. Ts'o
2020-10-02 20:10   ` Jens Axboe

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