ceph-devel.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Chaitanya Kulkarni <Chaitanya.Kulkarni@wdc.com>
To: Christoph Hellwig <hch@lst.de>, Jens Axboe <axboe@kernel.dk>
Cc: "Martin K . Petersen" <martin.petersen@oracle.com>,
	Oleksii Kurochko <olkuroch@cisco.com>,
	Sagi Grimberg <sagi@grimberg.me>,
	Mike Snitzer <snitzer@redhat.com>,
	Ilya Dryomov <idryomov@gmail.com>,
	Dongsheng Yang <dongsheng.yang@easystack.cn>,
	"ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>,
	"dm-devel@redhat.com" <dm-devel@redhat.com>,
	"linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
	"linux-nvme@lists.infradead.org" <linux-nvme@lists.infradead.org>,
	Keith Busch <kbusch@kernel.org>
Subject: Re: [PATCH 6/6] nvme: allow revalidate to set a namespace read-only
Date: Sat, 9 Jan 2021 20:27:26 +0000	[thread overview]
Message-ID: <BYAPR04MB4965CD87B0E6CBA2FFD0B09886AD0@BYAPR04MB4965.namprd04.prod.outlook.com> (raw)
In-Reply-To: 20210109104254.1077093-7-hch@lst.de

On 1/9/21 02:49, Christoph Hellwig wrote:
> Unconditionally call set_disk_ro now that it only updates the hardware
> state.  This allows to properly set up the Linux devices read-only when
> the controller turns a previously writable namespace read-only.
>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
> Reviewed-by: Keith Busch <kbusch@kernel.org>
> Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
> ---
>  drivers/nvme/host/core.c | 5 ++---
>  1 file changed, 2 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
> index ce1b6151944131..3a0557ccc9fc5d 100644
> --- a/drivers/nvme/host/core.c
> +++ b/drivers/nvme/host/core.c
> @@ -2114,9 +2114,8 @@ static void nvme_update_disk_info(struct gendisk *disk,
>  	nvme_config_discard(disk, ns);
>  	nvme_config_write_zeroes(disk, ns);
>  
> -	if ((id->nsattr & NVME_NS_ATTR_RO) ||
> -	    test_bit(NVME_NS_FORCE_RO, &ns->flags))
> -		set_disk_ro(disk, true);
> +	set_disk_ro(disk, (id->nsattr & NVME_NS_ATTR_RO) ||
> +		test_bit(NVME_NS_FORCE_RO, &ns->flags));
>  }
>  

If we are adding a multi-line function call can we please consider
following, on the top of this that matches earlier multi-line function
call in the same nvme_update_disk_into() :-

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index 3a0557ccc9fc..5cf0f801a95e 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -2115,7 +2115,7 @@ static void nvme_update_disk_info(struct gendisk
*disk,
        nvme_config_write_zeroes(disk, ns);
 
        set_disk_ro(disk, (id->nsattr & NVME_NS_ATTR_RO) ||
-               test_bit(NVME_NS_FORCE_RO, &ns->flags));
+                   test_bit(NVME_NS_FORCE_RO, &ns->flags));
 }
 
static inline bool nvme_first_scan(struct gendisk *disk)

Otherwise, looks good.
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
>  static inline bool nvme_first_scan(struct gendisk *disk)


  reply	other threads:[~2021-01-09 20:28 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-09 10:42 split hard read-only vs read-only policy v3 (resend) Christoph Hellwig
2021-01-09 10:42 ` [PATCH 1/6] dm: use bdev_read_only to check if a device is read-only Christoph Hellwig
2021-01-09 10:42 ` [PATCH 2/6] block: remove the NULL bdev check in bdev_read_only Christoph Hellwig
2021-01-09 20:14   ` Chaitanya Kulkarni
2021-01-10 14:59   ` Hannes Reinecke
2021-01-09 10:42 ` [PATCH 3/6] block: add a hard-readonly flag to struct gendisk Christoph Hellwig
2021-01-09 10:42 ` [PATCH 4/6] block: propagate BLKROSET on the whole device to all partitions Christoph Hellwig
2021-01-10 15:00   ` Hannes Reinecke
2021-01-09 10:42 ` [PATCH 5/6] rbd: remove the ->set_read_only method Christoph Hellwig
2021-01-09 10:42 ` [PATCH 6/6] nvme: allow revalidate to set a namespace read-only Christoph Hellwig
2021-01-09 20:27   ` Chaitanya Kulkarni [this message]
2021-01-10 15:01   ` Hannes Reinecke
  -- strict thread matches above, loose matches on Subject: below --
2020-12-08 16:28 split hard read-only vs read-only policy v3 Christoph Hellwig
2020-12-08 16:28 ` [PATCH 6/6] nvme: allow revalidate to set a namespace read-only Christoph Hellwig
2020-12-08 16:49   ` Hannes Reinecke
2020-12-09  2:54   ` Ming Lei
2020-12-07 13:19 split hard read-only vs read-only policy v2 Christoph Hellwig
2020-12-07 13:19 ` [PATCH 6/6] nvme: allow revalidate to set a namespace read-only Christoph Hellwig
2020-12-07 18:13   ` Keith Busch
2020-12-08  5:29   ` Martin K. Petersen

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=BYAPR04MB4965CD87B0E6CBA2FFD0B09886AD0@BYAPR04MB4965.namprd04.prod.outlook.com \
    --to=chaitanya.kulkarni@wdc.com \
    --cc=axboe@kernel.dk \
    --cc=ceph-devel@vger.kernel.org \
    --cc=dm-devel@redhat.com \
    --cc=dongsheng.yang@easystack.cn \
    --cc=hch@lst.de \
    --cc=idryomov@gmail.com \
    --cc=kbusch@kernel.org \
    --cc=linux-block@vger.kernel.org \
    --cc=linux-nvme@lists.infradead.org \
    --cc=martin.petersen@oracle.com \
    --cc=olkuroch@cisco.com \
    --cc=sagi@grimberg.me \
    --cc=snitzer@redhat.com \
    /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).