linux-ext4 - Re: [PATCH 1/1] mm/block: convert rw

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Message-ID: <57A38EC0.2020906@redhat.com>
Date:	Thu, 4 Aug 2016 13:51:44 -0500
From:	Mike Christie <mchristi@...hat.com>
To:	Ross Zwisler <ross.zwisler@...ux.intel.com>,
	linux-ext4@...r.kernel.org, linux-block@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, david@...morbit.com,
	minchan@...nel.org, ngupta@...are.org, vishal.l.verma@...el.com,
	axboe@...nel.dk, Christoph Hellwig <hch@...radead.org>
Subject: Re: [PATCH 1/1] mm/block: convert rw_page users to bio op use

On 08/04/2016 01:46 PM, Ross Zwisler wrote:
> On Thu, Aug 04, 2016 at 12:17:36PM -0500, Mike Christie wrote:
>> This fixes a regression from
>> 4e1b2d52a80d79296a5d899d73249748dea71a53
>> block, fs, drivers: remove REQ_OP compat defs and related code
>>
>> The rw_page users were not converted to use bio/req ops. As a result
>> bdev_write_page is not passing down REQ_OP_WRITE and the IOs will
>> be sent down as reads.
>>
>> Signed-off-by: Mike Christie <mchristi@...hat.com>
> 
> Was the intention for this to fix the xfs.mkfs hang I reported with
> generic/361 + XFS?

The hang when also using loop? If so, you also need Christoph's patches:

http://marc.info/?l=linux-fsdevel&m=147032181909530&w=2
http://marc.info/?l=linux-fsdevel&m=147031989408783&w=2

My patch just fixes rw_page users like brd.
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