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* [PATCH 1/1] nvme-core : remove redundant check from nvme_init_ns_head
@ 2023-05-17 22:09 Irvin Cote
  2023-05-18  9:06 ` Sagi Grimberg
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: Irvin Cote @ 2023-05-17 22:09 UTC (permalink / raw)
  To: hch; +Cc: kbusch, axboe, sagi, linux-nvme, Irvin Cote

nvme_find_ns_head already checks that the list of namescpaces
in an already existing namespace head is not empty

Signed-off-by: Irvin Cote <irvincoteg@gmail.com>
---
 drivers/nvme/host/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index ccb6eb1282f8..54a8eadd9876 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -4209,7 +4209,7 @@ static int nvme_init_ns_head(struct nvme_ns *ns, struct nvme_ns_info *info)
 			goto out_put_ns_head;
 		}
 
-		if (!multipath && !list_empty(&head->list)) {
+		if (!multipath) {
 			dev_warn(ctrl->device,
 				"Found shared namespace %d, but multipathing not supported.\n",
 				info->nsid);
-- 
2.39.2



^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/1] nvme-core : remove redundant check from nvme_init_ns_head
  2023-05-17 22:09 [PATCH 1/1] nvme-core : remove redundant check from nvme_init_ns_head Irvin Cote
@ 2023-05-18  9:06 ` Sagi Grimberg
  2023-05-19  2:29 ` Keith Busch
  2023-05-20  4:39 ` Christoph Hellwig
  2 siblings, 0 replies; 6+ messages in thread
From: Sagi Grimberg @ 2023-05-18  9:06 UTC (permalink / raw)
  To: Irvin Cote, hch; +Cc: kbusch, axboe, linux-nvme


> nvme_find_ns_head already checks that the list of namescpaces
> in an already existing namespace head is not empty
> 
> Signed-off-by: Irvin Cote <irvincoteg@gmail.com>
> ---
>   drivers/nvme/host/core.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
> index ccb6eb1282f8..54a8eadd9876 100644
> --- a/drivers/nvme/host/core.c
> +++ b/drivers/nvme/host/core.c
> @@ -4209,7 +4209,7 @@ static int nvme_init_ns_head(struct nvme_ns *ns, struct nvme_ns_info *info)
>   			goto out_put_ns_head;
>   		}
>   
> -		if (!multipath && !list_empty(&head->list)) {
> +		if (!multipath) {
>   			dev_warn(ctrl->device,
>   				"Found shared namespace %d, but multipathing not supported.\n",
>   				info->nsid);

Reviewed-by: Sagi Grimberg <sagi@grimberg.me>


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/1] nvme-core : remove redundant check from nvme_init_ns_head
  2023-05-17 22:09 [PATCH 1/1] nvme-core : remove redundant check from nvme_init_ns_head Irvin Cote
  2023-05-18  9:06 ` Sagi Grimberg
@ 2023-05-19  2:29 ` Keith Busch
  2023-05-19  3:31   ` irvin cote
  2023-05-20  4:39   ` Christoph Hellwig
  2023-05-20  4:39 ` Christoph Hellwig
  2 siblings, 2 replies; 6+ messages in thread
From: Keith Busch @ 2023-05-19  2:29 UTC (permalink / raw)
  To: Irvin Cote; +Cc: hch, axboe, sagi, linux-nvme

On Wed, May 17, 2023 at 07:09:15PM -0300, Irvin Cote wrote:
> -		if (!multipath && !list_empty(&head->list)) {
> +		if (!multipath) {
>  			dev_warn(ctrl->device,
>  				"Found shared namespace %d, but multipathing not supported.\n",
>  				info->nsid);
> -- 

Thanks, applied for nvme-6.5.

Side note, the very next print says this path was to be removed by 6.0,
so we're a little late on that. Did you actually hit this condition or
found it from inspection?


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/1] nvme-core : remove redundant check from nvme_init_ns_head
  2023-05-19  2:29 ` Keith Busch
@ 2023-05-19  3:31   ` irvin cote
  2023-05-20  4:39   ` Christoph Hellwig
  1 sibling, 0 replies; 6+ messages in thread
From: irvin cote @ 2023-05-19  3:31 UTC (permalink / raw)
  To: Keith Busch; +Cc: hch, axboe, sagi, linux-nvme

I found it from inspection

On Thu, 18 May 2023 at 23:29, Keith Busch <kbusch@kernel.org> wrote:
>
> On Wed, May 17, 2023 at 07:09:15PM -0300, Irvin Cote wrote:
> > -             if (!multipath && !list_empty(&head->list)) {
> > +             if (!multipath) {
> >                       dev_warn(ctrl->device,
> >                               "Found shared namespace %d, but multipathing not supported.\n",
> >                               info->nsid);
> > --
>
> Thanks, applied for nvme-6.5.
>
> Side note, the very next print says this path was to be removed by 6.0,
> so we're a little late on that. Did you actually hit this condition or
> found it from inspection?


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/1] nvme-core : remove redundant check from nvme_init_ns_head
  2023-05-17 22:09 [PATCH 1/1] nvme-core : remove redundant check from nvme_init_ns_head Irvin Cote
  2023-05-18  9:06 ` Sagi Grimberg
  2023-05-19  2:29 ` Keith Busch
@ 2023-05-20  4:39 ` Christoph Hellwig
  2 siblings, 0 replies; 6+ messages in thread
From: Christoph Hellwig @ 2023-05-20  4:39 UTC (permalink / raw)
  To: Irvin Cote; +Cc: hch, kbusch, axboe, sagi, linux-nvme

On Wed, May 17, 2023 at 07:09:15PM -0300, Irvin Cote wrote:
> nvme_find_ns_head already checks that the list of namescpaces
> in an already existing namespace head is not empty
> 
> Signed-off-by: Irvin Cote <irvincoteg@gmail.com>

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>


^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH 1/1] nvme-core : remove redundant check from nvme_init_ns_head
  2023-05-19  2:29 ` Keith Busch
  2023-05-19  3:31   ` irvin cote
@ 2023-05-20  4:39   ` Christoph Hellwig
  1 sibling, 0 replies; 6+ messages in thread
From: Christoph Hellwig @ 2023-05-20  4:39 UTC (permalink / raw)
  To: Keith Busch; +Cc: Irvin Cote, hch, axboe, sagi, linux-nvme

On Thu, May 18, 2023 at 08:29:39PM -0600, Keith Busch wrote:
> On Wed, May 17, 2023 at 07:09:15PM -0300, Irvin Cote wrote:
> > -		if (!multipath && !list_empty(&head->list)) {
> > +		if (!multipath) {
> >  			dev_warn(ctrl->device,
> >  				"Found shared namespace %d, but multipathing not supported.\n",
> >  				info->nsid);
> > -- 
> 
> Thanks, applied for nvme-6.5.
> 
> Side note, the very next print says this path was to be removed by 6.0,
> so we're a little late on that.

Yeah, I need to get to this and the resulting cleanup.  Hopefully I'll
find some time the next weeks.


^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2023-05-20  4:39 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-05-17 22:09 [PATCH 1/1] nvme-core : remove redundant check from nvme_init_ns_head Irvin Cote
2023-05-18  9:06 ` Sagi Grimberg
2023-05-19  2:29 ` Keith Busch
2023-05-19  3:31   ` irvin cote
2023-05-20  4:39   ` Christoph Hellwig
2023-05-20  4:39 ` Christoph Hellwig

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