From: Jens Axboe <axboe@kernel•dk>
To: Mike Snitzer <snitzer@redhat•com>
Cc: Stephen Rothwell <sfr@canb•auug.org.au>,
Alasdair G Kergon <agk@redhat•com>,
Linux-Next Mailing List <linux-next@vger•kernel.org>,
Linux Kernel Mailing List <linux-kernel@vger•kernel.org>,
Kent Overstreet <kent.overstreet@gmail•com>
Subject: Re: linux-next: build failure after merge of the device-mapper tree
Date: Thu, 31 May 2018 09:02:01 -0600 [thread overview]
Message-ID: <f5842a01-2bf1-2c18-1531-becae5dc5fb6@kernel.dk> (raw)
In-Reply-To: <9ed288cd-0e85-1cb6-7be0-d9d76c7af66d@kernel.dk>
On 5/31/18 8:22 AM, Jens Axboe wrote:
> On 5/31/18 8:20 AM, Jens Axboe wrote:
>> On 5/31/18 6:10 AM, Mike Snitzer wrote:
>>> On Thu, May 31 2018 at 12:35am -0400,
>>> Jens Axboe <axboe@kernel•dk> wrote:
>>>
>>>> On May 30, 2018, at 10:23 PM, Stephen Rothwell <sfr@canb•auug.org.au> wrote:
>>>>>
>>>>> Hi all,
>>>>>
>>>>> After merging the device-mapper tree, today's linux-next build (x86_64
>>>>> allmodconfig) failed like this:
>>>>>
>>>>> drivers/md/dm-writecache.c: In function 'writecache_dtr':
>>>>> drivers/md/dm-writecache.c:1799:3: error: implicit declaration of function 'bioset_free'; did you mean 'bvec_free'? [-Werror=implicit-function-declaration]
>>>>> bioset_free(wc->bio_set);
>>>>> ^~~~~~~~~~~
>>>>> bvec_free
>>>>> drivers/md/dm-writecache.c: In function 'writecache_ctr':
>>>>> drivers/md/dm-writecache.c:1929:17: error: implicit declaration of function 'bioset_create'; did you mean 'bioset_exit'? [-Werror=implicit-function-declaration]
>>>>> wc->bio_set = bioset_create(BIO_POOL_SIZE,
>>>>> ^~~~~~~~~~~~~
>>>>> bioset_exit
>>>>> drivers/md/dm-writecache.c:1929:15: warning: assignment makes pointer from integer without a cast [-Wint-conversion]
>>>>> wc->bio_set = bioset_create(BIO_POOL_SIZE,
>>>>> ^
>>>>>
>>>>> Caused by commit
>>>>>
>>>>> 2105231db61b ("dm: add writecache target")
>>>>>
>>>>> interacting with commit
>>>>>
>>>>> dad08527525f ("block: Drop bioset_create()")
>>>>>
>>>>> from the block tree.
>>>>>
>>>>> Can we please consider not immediately dropping APIs if at all
>>>>> possible. :-(
>>>>
>>>> I’ll drop the last patch, we can do that at the end of the merge window instead.
>>>>
>>>
>>> FYI, I've since updated dm-writecache to use the new APIs
>>
>> Thanks Mike. I've rebased for-4.18/block to fold a bug fix for the
>> bounce code, and drop the patch that gets rid of the old API. When
>> we get to the end of the merge window, I'll push that last patch.
>> That's much more sensible, how it should have been done from the
>> get-go.
>
> Actually, maybe I should roll them back, since you both fixed that
> up AND based on my tree - which is of course totally fine, but
> now I'm thinking the rebase will do more harm than good in this
> case.
Talked to Mike offline, but for Stephen's sake I'll reiterate here
too. Since I'm assuming that dm-writecache is the only problematic
user here, and since Mike based dm-4.18 on the block tree, I considered
it saner to leave things as-is. This means that the API removal is still
in the tree.
Stephen, if you see further conflicts due to that, do let me know and
I'll do a proper revert of the patch instead. Hopefully it'll be smooth
sailing from here on out.
--
Jens Axboe
next prev parent reply other threads:[~2018-05-31 15:02 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-31 4:23 linux-next: build failure after merge of the device-mapper tree Stephen Rothwell
2018-05-31 4:35 ` Jens Axboe
2018-05-31 4:38 ` Stephen Rothwell
2018-05-31 12:10 ` Mike Snitzer
2018-05-31 14:20 ` Jens Axboe
2018-05-31 14:22 ` Jens Axboe
2018-05-31 15:02 ` Jens Axboe [this message]
2018-05-31 21:42 ` Stephen Rothwell
-- strict thread matches above, loose matches on Subject: below --
2025-08-15 3:05 Stephen Rothwell
2025-08-15 8:05 ` Bagas Sanjaya
2025-08-15 15:21 ` Mikulas Patocka
2025-04-10 2:20 Stephen Rothwell
2024-02-07 3:40 Stephen Rothwell
2024-02-07 3:54 ` Matthew Sakai
2024-02-07 15:47 ` Mike Snitzer
2023-09-15 0:06 Stephen Rothwell
2023-06-23 4:30 Stephen Rothwell
2023-06-23 16:47 ` Demi Marie Obenour
2021-02-11 3:36 Stephen Rothwell
2021-02-11 14:37 ` Mike Snitzer
2020-04-22 2:54 Stephen Rothwell
2018-12-06 6:21 Stephen Rothwell
2018-12-06 13:41 ` Mike Snitzer
2018-12-06 20:23 ` Stephen Rothwell
2018-03-27 2:39 Stephen Rothwell
2018-03-27 15:39 ` Bart Van Assche
2017-06-19 2:27 Stephen Rothwell
2017-06-09 3:12 Stephen Rothwell
2017-06-09 4:28 ` Damien Le Moal
2017-06-09 11:59 ` Mike Snitzer
2016-03-04 2:59 Stephen Rothwell
2016-03-04 3:14 ` Mike Snitzer
2015-11-01 10:43 Stephen Rothwell
2015-11-01 13:44 ` Mike Snitzer
2015-07-05 23:27 Stephen Rothwell
2015-05-22 3:27 Stephen Rothwell
2015-05-22 12:49 ` Mike Snitzer
2015-05-22 13:26 ` Mike Snitzer
2015-05-22 14:58 ` Jens Axboe
2014-01-15 3:52 Stephen Rothwell
2014-01-15 4:30 ` Mike Snitzer
2013-11-05 2:51 Stephen Rothwell
2013-11-05 3:20 ` Mike Snitzer
2013-11-05 3:32 ` Stephen Rothwell
2013-11-05 12:54 ` Mike Snitzer
2013-11-05 16:22 ` Jens Axboe
2013-11-05 22:42 ` Stephen Rothwell
2013-11-05 22:44 ` Jens Axboe
2010-08-02 1:31 Stephen Rothwell
2010-08-02 6:44 ` Milan Broz
2010-08-02 11:34 ` Alasdair G Kergon
2010-06-30 2:57 Stephen Rothwell
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