From: Hannes Reinecke <hare@suse.de>
To: Ming Lei <ming.lei@redhat.com>, Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org,
Jeffle Xu <jefflexu@linux.alibaba.com>,
Mike Snitzer <snitzer@redhat.com>,
dm-devel@redhat.com
Subject: Re: [PATCH V4 12/12] dm: support IO polling for bio-based dm device
Date: Tue, 30 Mar 2021 08:40:58 +0200 [thread overview]
Message-ID: <c9cb5fe6-490e-867c-a8bc-842f3c5de835@suse.de> (raw)
In-Reply-To: <20210329152622.173035-13-ming.lei@redhat.com>
On 3/29/21 5:26 PM, Ming Lei wrote:
> From: Jeffle Xu <jefflexu@linux.alibaba.com>
>
> IO polling is enabled when all underlying target devices are capable
> of IO polling. The sanity check supports the stacked device model, in
> which one dm device may be build upon another dm device. In this case,
> the mapped device will check if the underlying dm target device
> supports IO polling.
>
> Reviewed-by: Mike Snitzer <snitzer@redhat.com>
> Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
> Signed-off-by: Ming Lei <ming.lei@redhat.com>
> ---
> drivers/md/dm-table.c | 24 ++++++++++++++++++++++++
> drivers/md/dm.c | 14 ++++++++++++++
> include/linux/device-mapper.h | 1 +
> 3 files changed, 39 insertions(+)
>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
hare@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer
WARNING: multiple messages have this Message-ID (diff)
From: Hannes Reinecke <hare@suse.de>
To: Ming Lei <ming.lei@redhat.com>, Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org,
Jeffle Xu <jefflexu@linux.alibaba.com>,
dm-devel@redhat.com, Mike Snitzer <snitzer@redhat.com>
Subject: Re: [dm-devel] [PATCH V4 12/12] dm: support IO polling for bio-based dm device
Date: Tue, 30 Mar 2021 08:40:58 +0200 [thread overview]
Message-ID: <c9cb5fe6-490e-867c-a8bc-842f3c5de835@suse.de> (raw)
In-Reply-To: <20210329152622.173035-13-ming.lei@redhat.com>
On 3/29/21 5:26 PM, Ming Lei wrote:
> From: Jeffle Xu <jefflexu@linux.alibaba.com>
>
> IO polling is enabled when all underlying target devices are capable
> of IO polling. The sanity check supports the stacked device model, in
> which one dm device may be build upon another dm device. In this case,
> the mapped device will check if the underlying dm target device
> supports IO polling.
>
> Reviewed-by: Mike Snitzer <snitzer@redhat.com>
> Signed-off-by: Jeffle Xu <jefflexu@linux.alibaba.com>
> Signed-off-by: Ming Lei <ming.lei@redhat.com>
> ---
> drivers/md/dm-table.c | 24 ++++++++++++++++++++++++
> drivers/md/dm.c | 14 ++++++++++++++
> include/linux/device-mapper.h | 1 +
> 3 files changed, 39 insertions(+)
>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Cheers,
Hannes
--
Dr. Hannes Reinecke Kernel Storage Architect
hare@suse.de +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer
--
dm-devel mailing list
dm-devel@redhat.com
https://listman.redhat.com/mailman/listinfo/dm-devel
next prev parent reply other threads:[~2021-03-30 6:41 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-29 15:26 [PATCH V4 00/12] block: support bio based io polling Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-29 15:26 ` [PATCH V4 01/12] block: add helper of blk_queue_poll Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-29 15:26 ` [PATCH V4 02/12] block: add one helper to free io_context Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-29 15:26 ` [PATCH V4 03/12] block: create io poll context for submission and poll task Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-30 3:54 ` JeffleXu
2021-03-30 3:54 ` [dm-devel] " JeffleXu
2021-03-30 6:17 ` Hannes Reinecke
2021-03-30 6:17 ` [dm-devel] " Hannes Reinecke
2021-03-29 15:26 ` [PATCH V4 04/12] block: add req flag of REQ_POLL_CTX Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-30 6:19 ` Hannes Reinecke
2021-03-30 6:19 ` [dm-devel] " Hannes Reinecke
2021-03-29 15:26 ` [PATCH V4 05/12] block: add new field into 'struct bvec_iter' Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-29 15:26 ` [PATCH V4 06/12] block/mq: extract one helper function polling hw queue Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-29 15:26 ` [PATCH V4 07/12] block: prepare for supporting bio_list via other link Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-29 15:26 ` [PATCH V4 08/12] block: use per-task poll context to implement bio based io polling Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-30 3:52 ` JeffleXu
2021-03-30 3:52 ` [dm-devel] " JeffleXu
2021-03-30 6:40 ` Hannes Reinecke
2021-03-30 6:40 ` [dm-devel] " Hannes Reinecke
2021-03-30 8:32 ` Ming Lei
2021-03-30 8:32 ` [dm-devel] " Ming Lei
2021-03-29 15:26 ` [PATCH V4 09/12] blk-mq: limit hw queues to be polled in each blk_poll() Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-30 3:53 ` JeffleXu
2021-03-30 3:53 ` [dm-devel] " JeffleXu
2021-03-29 15:26 ` [PATCH V4 10/12] block: add queue_to_disk() to get gendisk from request_queue Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-30 6:27 ` Hannes Reinecke
2021-03-30 6:27 ` [dm-devel] " Hannes Reinecke
2021-03-29 15:26 ` [PATCH V4 11/12] block: add poll_capable method to support bio-based IO polling Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-30 6:26 ` Hannes Reinecke
2021-03-30 6:26 ` [dm-devel] " Hannes Reinecke
2021-03-30 6:50 ` JeffleXu
2021-03-30 6:50 ` [dm-devel] " JeffleXu
2021-03-30 8:49 ` Ming Lei
2021-03-30 8:49 ` [dm-devel] " Ming Lei
2021-03-29 15:26 ` [PATCH V4 12/12] dm: support IO polling for bio-based dm device Ming Lei
2021-03-29 15:26 ` [dm-devel] " Ming Lei
2021-03-30 6:40 ` Hannes Reinecke [this message]
2021-03-30 6:40 ` Hannes Reinecke
-- strict thread matches above, loose matches on Subject: below --
2021-02-20 11:06 [PATCH v4 00/12] dm: support IO polling Jeffle Xu
2021-02-20 11:06 ` [PATCH v4 12/12] dm: support IO polling for bio-based dm device Jeffle Xu
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