Re: [PATCH v3 3/6] block: refactor sysfs code

From: Christoph Hellwig <hch@infradead.org>
To: Matteo Croce <mcroce@linux.microsoft.com>
Cc: Christoph Hellwig <hch@infradead.org>,
	linux-block@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	Jens Axboe <axboe@kernel.dk>,
	Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Lennart Poettering <lennart@poettering.net>,
	Luca Boccassi <bluca@debian.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	Damien Le Moal <damien.lemoal@wdc.com>, Tejun Heo <tj@kernel.org>,
	Javier Gonz??lez <javier@javigon.com>,
	Niklas Cassel <niklas.cassel@wdc.com>,
	Johannes Thumshirn <johannes.thumshirn@wdc.com>,
	Hannes Reinecke <hare@suse.de>,
	Matthew Wilcox <willy@infradead.org>,
	JeffleXu <jefflexu@linux.alibaba.com>
Subject: Re: [PATCH v3 3/6] block: refactor sysfs code
Date: Thu, 24 Jun 2021 07:12:47 +0100	[thread overview]
Message-ID: <YNQiX08k6SGz5PvD@infradead.org> (raw)
In-Reply-To: <CAFnufp3=2Jhr9NqVhE2nCLcr48UvxVww=RpWHp2wpm7DWwGuEA@mail.gmail.com>

On Wed, Jun 23, 2021 at 09:03:40PM +0200, Matteo Croce wrote:
> On Wed, Jun 23, 2021 at 1:53 PM Christoph Hellwig <hch@infradead.org> wrote:
> >
> > > -static void disk_add_events(struct gendisk *disk)
> > > +static void disk_add_sysfs(struct gendisk *disk)
> > >  {
> > >       /* FIXME: error handling */
> > > -     if (sysfs_create_files(&disk_to_dev(disk)->kobj, disk_events_attrs) < 0)
> > > +     if (sysfs_create_files(&disk_to_dev(disk)->kobj, disk_sysfs_attrs) < 0)
> > >               pr_warn("%s: failed to create sysfs files for events\n",
> > >                       disk->disk_name);
> > > +}
> >
> > Actually, what we need here is a way how we can setup the ->groups
> > field of the device to include all attribute groups instead of having
> > to call sysfs_create_files at all.
> 
> I don't get this one. You mean in general or in this series?

In general before we make more use of the block device provided attrs.