linux-kernel - Re: [PATCH v3 0/2] block,scsi: fixup blk_get

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Message-ID: <53FCF9DB.6010501@kernel.dk>
Date:	Tue, 26 Aug 2014 15:19:23 -0600
From:	Jens Axboe <axboe@...nel.dk>
To:	Jeff Moyer <jmoyer@...hat.com>,
	Joe Lawrence <joe.lawrence@...atus.com>
CC:	linux-kernel@...r.kernel.org, Jiri Kosina <jkosina@...e.cz>,
	Boaz Harrosh <bharrosh@...asas.com>
Subject: Re: [PATCH v3 0/2] block,scsi: fixup blk_get_request dead queue scenarios

On 08/26/2014 11:24 AM, Jeff Moyer wrote:
> Joe Lawrence <joe.lawrence@...atus.com> writes:
> 
>> v2->v3: rebase to 3.16-rc2, consider return values from the
>>         blk_mq_alloc_request leg of the blk_get_request callchain
>>         (noted by Jeff), noted in the second patch changelog.
>>
>> 	blk_mq_queue_enter may return 0 or errno, which
>>         blk_mq_alloc_request can propogate out via ERR_PTR.
>> 	__blk_mq_alloc_request doesn't include any blk_queue_dying
>> 	checks, so I'm assuming that its failures can be attributed
>>         to -EWOULDBLOCK under !GFP_WAIT conditions.
>>
>> v1->v2: incorporate Jeff's feedback in bsg_map_hdr() and Reviewed-by
>>         tags.
>>
>> Joe Lawrence (2):
>>   block,scsi: verify return pointer from blk_get_request
>>   block,scsi: fixup blk_get_request dead queue scenarios
> 
> Jens,
> 
> Did this patch set fall through the cracks again?

Falling through the cracks implies that I meant to apply it and did not,
which was not the case. But I think we're at the point now where I'm
finally comfortable with applying it. So, Joe, could you ensure that it
applies to 3.17-rc2, then I will roll it in to the updates for 3.18.

-- 
Jens Axboe

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