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From: Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>
To: Jens Axboe <axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
Cc: linux-raid-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-block-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-mm-Bw31MaZKKs3YtjvyW6yDsg@public.gmane.org,
	dm-devel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org,
	Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
	cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Christoph Hellwig <hch-jcswGhMUV9g@public.gmane.org>,
	linux-btrfs-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	drbd-dev-cunTk1MwBs8qoQakbn7OcQ@public.gmane.org
Subject: Re: remove dead bdi congestion leftovers
Date: Thu, 9 Jul 2020 07:32:33 +0200	[thread overview]
Message-ID: <20200709053233.GA3243@lst.de> (raw)
In-Reply-To: <b5d6df17-68af-d535-79e4-f95e16dd5632-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>

On Wed, Jul 08, 2020 at 05:14:29PM -0600, Jens Axboe wrote:
> On 7/1/20 3:06 AM, Christoph Hellwig wrote:
> > Hi Jens,
> > 
> > we have a lot of bdi congestion related code that is left around without
> > any use.  This series removes it in preparation of sorting out the bdi
> > lifetime rules properly.
> 
> Please run series like this through a full compilation, for both this one
> and the previous series I had to fix up issues like this:
> 
> drivers/md/bcache/request.c: In function ‘bch_cached_dev_request_init’:
> drivers/md/bcache/request.c:1233:18: warning: unused variable ‘g’ [-Wunused-variable]
>  1233 |  struct gendisk *g = dc->disk.disk;
>       |                  ^
> drivers/md/bcache/request.c: In function ‘bch_flash_dev_request_init’:
> drivers/md/bcache/request.c:1320:18: warning: unused variable ‘g’ [-Wunused-variable]
>  1320 |  struct gendisk *g = d->disk;
>       |                  ^
> 
> Did the same here, applied it.

And just like the previous one I did, and the compiler did not complain.
There must be something about certain gcc versions not warning about
variables that are initialized but not otherwise used.
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WARNING: multiple messages have this Message-ID (diff)
From: Christoph Hellwig <hch@lst.de>
To: Jens Axboe <axboe@kernel.dk>
Cc: Christoph Hellwig <hch@lst.de>, Tejun Heo <tj@kernel.org>,
	dm-devel@redhat.com, cgroups@vger.kernel.org,
	linux-block@vger.kernel.org, drbd-dev@lists.linbit.com,
	linux-bcache@vger.kernel.org, linux-raid@vger.kernel.org,
	linux-btrfs@vger.kernel.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org
Subject: Re: remove dead bdi congestion leftovers
Date: Thu, 9 Jul 2020 07:32:33 +0200	[thread overview]
Message-ID: <20200709053233.GA3243@lst.de> (raw)
In-Reply-To: <b5d6df17-68af-d535-79e4-f95e16dd5632@kernel.dk>

On Wed, Jul 08, 2020 at 05:14:29PM -0600, Jens Axboe wrote:
> On 7/1/20 3:06 AM, Christoph Hellwig wrote:
> > Hi Jens,
> > 
> > we have a lot of bdi congestion related code that is left around without
> > any use.  This series removes it in preparation of sorting out the bdi
> > lifetime rules properly.
> 
> Please run series like this through a full compilation, for both this one
> and the previous series I had to fix up issues like this:
> 
> drivers/md/bcache/request.c: In function ‘bch_cached_dev_request_init’:
> drivers/md/bcache/request.c:1233:18: warning: unused variable ‘g’ [-Wunused-variable]
>  1233 |  struct gendisk *g = dc->disk.disk;
>       |                  ^
> drivers/md/bcache/request.c: In function ‘bch_flash_dev_request_init’:
> drivers/md/bcache/request.c:1320:18: warning: unused variable ‘g’ [-Wunused-variable]
>  1320 |  struct gendisk *g = d->disk;
>       |                  ^
> 
> Did the same here, applied it.

And just like the previous one I did, and the compiler did not complain.
There must be something about certain gcc versions not warning about
variables that are initialized but not otherwise used.

  parent reply	other threads:[~2020-07-09  5:32 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-01  9:06 remove dead bdi congestion leftovers Christoph Hellwig
2020-07-01  9:06 ` [PATCH 1/4] drbd: remove a bogus bdi_rw_congested call Christoph Hellwig
2020-07-01  9:06   ` Christoph Hellwig
2020-07-01  9:06 ` [PATCH 2/4] writeback: remove {set,clear}_wb_congested Christoph Hellwig
     [not found] ` <20200701090622.3354860-1-hch-jcswGhMUV9g@public.gmane.org>
2020-07-01  9:06   ` [PATCH 3/4] writeback: remove struct bdi_writeback_congested Christoph Hellwig
2020-07-01  9:06     ` Christoph Hellwig
2020-07-01 16:38   ` remove dead bdi congestion leftovers Tejun Heo
2020-07-01 16:38     ` Tejun Heo
2020-07-08 23:14   ` Jens Axboe
2020-07-08 23:14     ` Jens Axboe
     [not found]     ` <b5d6df17-68af-d535-79e4-f95e16dd5632-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
2020-07-09  5:32       ` Christoph Hellwig [this message]
2020-07-09  5:32         ` Christoph Hellwig
     [not found]         ` <20200709053233.GA3243-jcswGhMUV9g@public.gmane.org>
2020-07-09 13:58           ` Jens Axboe
2020-07-09 13:58             ` Jens Axboe
     [not found]             ` <82e2785d-2091-1986-0014-3b7cea7cd0d8-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org>
2020-07-09 14:01               ` Christoph Hellwig
2020-07-09 14:01                 ` Christoph Hellwig
2020-07-01  9:06 ` [PATCH 4/4] writeback: remove bdi->congested_fn Christoph Hellwig
2020-07-01 14:48   ` David Sterba
2020-07-02  0:38   ` Coly Li
     [not found]   ` <20200701090622.3354860-5-hch-jcswGhMUV9g@public.gmane.org>
2020-07-02  5:36     ` Song Liu
2020-07-02  5:36       ` Song Liu
2020-07-02  5:36       ` Song Liu
2020-07-01 16:41 ` remove dead bdi congestion leftovers Mike Snitzer
2020-07-01 17:57   ` Matthew Wilcox
2020-07-01 18:25     ` Matthew Wilcox

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