From: Bart Van Assche <Bart.VanAssche@wdc.com>
To: "hare@suse.de" <hare@suse.de>, "axboe@kernel.dk" <axboe@kernel.dk>
Cc: "hch@lst.de" <hch@lst.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"keith.busch@intel.com" <keith.busch@intel.com>,
"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
"hare@suse.com" <hare@suse.com>,
"sagi@grimberg.me" <sagi@grimberg.me>
Subject: Re: [PATCH 2/5] nvme: register ns_id attributes as default sysfs groups
Date: Tue, 14 Aug 2018 15:20:33 +0000 [thread overview]
Message-ID: <5a4aab8b5f509d8090ad10107b01d11285fe1528.camel@wdc.com> (raw)
In-Reply-To: <20180814073305.87255-3-hare@suse.de>
On Tue, 2018-08-14 at 09:33 +0200, Hannes Reinecke wrote:
> +const struct attribute_group *nvme_ns_id_attr_groups[] = {
> + &nvme_ns_id_attr_group,
> + NULL, /* Will be filled in by lightnvm if present */
> + NULL,
> +};
[ ... ]
> -void nvme_nvm_unregister_sysfs(struct nvme_ns *ns)
> -{
> - struct nvm_dev *ndev = ns->ndev;
> - struct nvm_geo *geo = &ndev->geo;
> + return;
>
> switch (geo->major_ver_id) {
> case 1:
> - sysfs_remove_group(&disk_to_dev(ns->disk)->kobj,
> - &nvm_dev_attr_group_12);
> + nvme_ns_id_attr_groups[1] = &nvm_dev_attr_group_12;
> break;
> case 2:
> - sysfs_remove_group(&disk_to_dev(ns->disk)->kobj,
> - &nvm_dev_attr_group_20);
> + nvme_ns_id_attr_groups[1] = &nvm_dev_attr_group_20;
This patch introduces a really ugly dependency between the NVMe core code and
the lightnvm code, namely that the lightnvm code has to know at which position
in the nvme_ns_id_attr_groups it can fill in its attribute group pointer. Have
you considered to make nvme_nvm_register_sysfs() return an attribute group
pointer such that the nvme_ns_id_attr_groups can be changed from a global into
a static array?
Thanks,
Bart.
next prev parent reply other threads:[~2018-08-14 15:21 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-14 7:33 [PATCHv2 0/5] genhd: register default groups with device_add_disk() Hannes Reinecke
2018-08-14 7:33 ` [PATCH 1/5] block: genhd: add 'groups' argument to device_add_disk Hannes Reinecke
2018-08-14 15:17 ` Bart Van Assche
2018-08-14 7:33 ` [PATCH 2/5] nvme: register ns_id attributes as default sysfs groups Hannes Reinecke
2018-08-14 9:03 ` Javier González
2018-08-14 9:59 ` Matias Bjørling
2018-08-14 15:20 ` Bart Van Assche [this message]
2018-08-14 15:39 ` Hannes Reinecke
2018-08-14 15:44 ` Bart Van Assche
2018-08-17 7:00 ` hch
2018-08-17 7:53 ` Hannes Reinecke
2018-08-17 20:04 ` Bart Van Assche
2018-08-17 22:47 ` Sagi Grimberg
2018-08-20 6:34 ` Hannes Reinecke
2018-08-14 21:53 ` kbuild test robot
2018-08-14 21:53 ` [RFC PATCH] nvme: nvme_ns_id_attr_group can be static kbuild test robot
2018-08-17 6:55 ` [PATCH 2/5] nvme: register ns_id attributes as default sysfs groups Christoph Hellwig
2018-08-14 7:33 ` [PATCH 3/5] aoe: use device_add_disk_with_groups() Hannes Reinecke
2018-08-14 15:21 ` Bart Van Assche
2018-08-17 6:53 ` Christoph Hellwig
2018-08-14 7:33 ` [PATCH 4/5] zram: register default groups with device_add_disk() Hannes Reinecke
2018-08-14 15:23 ` Bart Van Assche
2018-08-14 7:33 ` [PATCH 5/5] virtio-blk: modernize sysfs attribute creation Hannes Reinecke
2018-08-14 15:24 ` Bart Van Assche
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5a4aab8b5f509d8090ad10107b01d11285fe1528.camel@wdc.com \
--to=bart.vanassche@wdc.com \
--cc=axboe@kernel.dk \
--cc=hare@suse.com \
--cc=hare@suse.de \
--cc=hch@lst.de \
--cc=keith.busch@intel.com \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=sagi@grimberg.me \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).