From: Guoqing Jiang <guoqing.jiang@linux.dev>
To: Logan Gunthorpe <logang@deltatee.com>,
linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org,
Song Liu <song@kernel.org>
Cc: Christoph Hellwig <hch@infradead.org>,
Stephen Bates <sbates@raithlin.com>,
Martin Oliveira <Martin.Oliveira@eideticom.com>,
David Sloan <David.Sloan@eideticom.com>
Subject: Re: [PATCH v2 12/12] md/raid5: Pivot raid5_make_request()
Date: Thu, 28 Apr 2022 09:32:04 +0800 [thread overview]
Message-ID: <2f566b2f-d1a8-d783-a6a2-787051b066c4@linux.dev> (raw)
In-Reply-To: <67153d42-93c0-def1-95d9-a09678cf343d@deltatee.com>
On 4/28/22 12:18 AM, Logan Gunthorpe wrote:
>>> diff --git a/drivers/md/raid5.h b/drivers/md/raid5.h
>>> index 638d29863503..e73b58844f83 100644
>>> --- a/drivers/md/raid5.h
>>> +++ b/drivers/md/raid5.h
>>> @@ -308,6 +308,7 @@ enum r5dev_flags {
>>> R5_Wantwrite,
>>> R5_Overlap, /* There is a pending overlapping request
>>> * on this block */
>>> + R5_BioReady, /* The current bio can be added to this disk */
>> This doesn't seem right to me, since the comment describes bio status
>> while others
>> are probably for r5dev.
> I'm not sure I understand the objection. If you have a better option
> please let me know.
As said, the flag is for r5dev not for bio, please don't make people confuse
about it.
My personal suggestion would be change it to R5_Ready_For_BIO or some
thing else, then update the comment accordingly.
> I'm still working on this patch. Caught a couple more rare bugs that I'm
> working to fix. The next version should also hopefully be clearer.
Thanks,
Guoqing
next prev parent reply other threads:[~2022-04-28 1:32 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-20 19:54 [PATCH v2 00/12] Improve Raid5 Lock Contention Logan Gunthorpe
2022-04-20 19:54 ` [PATCH v2 01/12] md/raid5: Factor out ahead_of_reshape() function Logan Gunthorpe
2022-04-21 6:07 ` Christoph Hellwig
2022-04-21 9:17 ` Paul Menzel
2022-04-21 16:05 ` Logan Gunthorpe
2022-04-21 23:33 ` Wol
2022-04-27 1:28 ` Guoqing Jiang
2022-04-27 16:07 ` Logan Gunthorpe
2022-04-28 1:49 ` Guoqing Jiang
2022-04-28 15:44 ` Logan Gunthorpe
2022-04-29 0:24 ` Guoqing Jiang
2022-04-20 19:54 ` [PATCH v2 02/12] md/raid5: Refactor raid5_make_request loop Logan Gunthorpe
2022-04-21 6:08 ` Christoph Hellwig
2022-04-27 1:32 ` Guoqing Jiang
2022-04-27 16:08 ` Logan Gunthorpe
2022-04-28 1:16 ` Guoqing Jiang
2022-04-20 19:54 ` [PATCH v2 03/12] md/raid5: Move stripe_add_to_batch_list() call out of add_stripe_bio() Logan Gunthorpe
2022-04-27 1:33 ` Guoqing Jiang
2022-04-20 19:54 ` [PATCH v2 04/12] md/raid5: Move common stripe count increment code into __find_stripe() Logan Gunthorpe
2022-04-21 6:10 ` Christoph Hellwig
2022-04-27 1:33 ` Guoqing Jiang
2022-04-20 19:54 ` [PATCH v2 05/12] md/raid5: Factor out helper from raid5_make_request() loop Logan Gunthorpe
2022-04-21 6:14 ` Christoph Hellwig
2022-04-20 19:54 ` [PATCH v2 06/12] md/raid5: Drop the do_prepare flag in raid5_make_request() Logan Gunthorpe
2022-04-21 6:15 ` Christoph Hellwig
2022-04-27 2:11 ` Guoqing Jiang
2022-04-20 19:54 ` [PATCH v2 07/12] md/raid5: Move read_seqcount_begin() into make_stripe_request() Logan Gunthorpe
2022-04-21 6:15 ` Christoph Hellwig
2022-04-27 2:13 ` Guoqing Jiang
2022-04-20 19:54 ` [PATCH v2 08/12] md/raid5: Refactor for loop in raid5_make_request() into while loop Logan Gunthorpe
2022-04-21 6:16 ` Christoph Hellwig
2022-04-20 19:54 ` [PATCH v2 09/12] md/raid5: Keep a reference to last stripe_head for batch Logan Gunthorpe
2022-04-21 6:17 ` Christoph Hellwig
2022-04-27 1:36 ` Guoqing Jiang
2022-04-27 23:27 ` Logan Gunthorpe
2022-04-20 19:54 ` [PATCH v2 10/12] md/raid5: Refactor add_stripe_bio() Logan Gunthorpe
2022-04-21 6:18 ` Christoph Hellwig
2022-04-20 19:54 ` [PATCH v2 11/12] md/raid5: Check all disks in a stripe_head for reshape progress Logan Gunthorpe
2022-04-21 6:18 ` Christoph Hellwig
2022-04-27 1:53 ` Guoqing Jiang
2022-04-27 16:11 ` Logan Gunthorpe
2022-04-20 19:54 ` [PATCH v2 12/12] md/raid5: Pivot raid5_make_request() Logan Gunthorpe
2022-04-21 6:43 ` Christoph Hellwig
2022-04-21 15:54 ` Logan Gunthorpe
2022-04-27 2:06 ` Guoqing Jiang
2022-04-27 16:18 ` Logan Gunthorpe
2022-04-28 1:32 ` Guoqing Jiang [this message]
2022-04-21 8:45 ` [PATCH v2 00/12] Improve Raid5 Lock Contention Xiao Ni
2022-04-21 16:02 ` Logan Gunthorpe
2022-04-24 8:00 ` Guoqing Jiang
2022-04-25 15:39 ` Logan Gunthorpe
2022-04-25 16:12 ` Xiao Ni
2022-04-28 21:22 ` Logan Gunthorpe
2022-04-29 0:49 ` Guoqing Jiang
2022-04-29 16:01 ` Logan Gunthorpe
2022-04-30 1:44 ` Guoqing Jiang
2022-04-24 7:53 ` Guoqing Jiang
2022-04-25 15:37 ` Logan Gunthorpe
2022-04-25 23:07 ` Song Liu
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