From: Ming Lei <ming.lei@redhat.com> To: 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, Hannes Reinecke <hare@suse.de>, Ming Lei <ming.lei@redhat.com> Subject: [PATCH V5 10/12] block: add queue_to_disk() to get gendisk from request_queue Date: Thu, 1 Apr 2021 10:19:25 +0800 [thread overview] Message-ID: <20210401021927.343727-11-ming.lei@redhat.com> (raw) In-Reply-To: <20210401021927.343727-1-ming.lei@redhat.com> From: Jeffle Xu <jefflexu@linux.alibaba.com> Sometimes we need to get the corresponding gendisk from request_queue. It is preferred that block drivers store private data in gendisk->private_data rather than request_queue->queuedata, e.g. see: commit c4a59c4e5db3 ("dm: stop using ->queuedata"). So if only request_queue is given, we need to get its corresponding gendisk to get the private data stored in that gendisk. Reviewed-by: Hannes Reinecke <hare@suse.de> 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> --- include/linux/blkdev.h | 2 ++ include/trace/events/kyber.h | 6 +++--- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 89a01850cf12..bfab74b45f15 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -686,6 +686,8 @@ static inline bool blk_account_rq(struct request *rq) dma_map_page_attrs(dev, (bv)->bv_page, (bv)->bv_offset, (bv)->bv_len, \ (dir), (attrs)) +#define queue_to_disk(q) (dev_to_disk(kobj_to_dev((q)->kobj.parent))) + static inline bool queue_is_mq(struct request_queue *q) { return q->mq_ops; diff --git a/include/trace/events/kyber.h b/include/trace/events/kyber.h index c0e7d24ca256..f9802562edf6 100644 --- a/include/trace/events/kyber.h +++ b/include/trace/events/kyber.h @@ -30,7 +30,7 @@ TRACE_EVENT(kyber_latency, ), TP_fast_assign( - __entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent))); + __entry->dev = disk_devt(queue_to_disk(q)); strlcpy(__entry->domain, domain, sizeof(__entry->domain)); strlcpy(__entry->type, type, sizeof(__entry->type)); __entry->percentile = percentile; @@ -59,7 +59,7 @@ TRACE_EVENT(kyber_adjust, ), TP_fast_assign( - __entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent))); + __entry->dev = disk_devt(queue_to_disk(q)); strlcpy(__entry->domain, domain, sizeof(__entry->domain)); __entry->depth = depth; ), @@ -81,7 +81,7 @@ TRACE_EVENT(kyber_throttled, ), TP_fast_assign( - __entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent))); + __entry->dev = disk_devt(queue_to_disk(q)); strlcpy(__entry->domain, domain, sizeof(__entry->domain)); ), -- 2.29.2
WARNING: multiple messages have this Message-ID (diff)
From: Ming Lei <ming.lei@redhat.com> To: Jens Axboe <axboe@kernel.dk> Cc: Mike Snitzer <snitzer@redhat.com>, Ming Lei <ming.lei@redhat.com>, linux-block@vger.kernel.org, dm-devel@redhat.com, Jeffle Xu <jefflexu@linux.alibaba.com> Subject: [dm-devel] [PATCH V5 10/12] block: add queue_to_disk() to get gendisk from request_queue Date: Thu, 1 Apr 2021 10:19:25 +0800 [thread overview] Message-ID: <20210401021927.343727-11-ming.lei@redhat.com> (raw) In-Reply-To: <20210401021927.343727-1-ming.lei@redhat.com> From: Jeffle Xu <jefflexu@linux.alibaba.com> Sometimes we need to get the corresponding gendisk from request_queue. It is preferred that block drivers store private data in gendisk->private_data rather than request_queue->queuedata, e.g. see: commit c4a59c4e5db3 ("dm: stop using ->queuedata"). So if only request_queue is given, we need to get its corresponding gendisk to get the private data stored in that gendisk. Reviewed-by: Hannes Reinecke <hare@suse.de> 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> --- include/linux/blkdev.h | 2 ++ include/trace/events/kyber.h | 6 +++--- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 89a01850cf12..bfab74b45f15 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -686,6 +686,8 @@ static inline bool blk_account_rq(struct request *rq) dma_map_page_attrs(dev, (bv)->bv_page, (bv)->bv_offset, (bv)->bv_len, \ (dir), (attrs)) +#define queue_to_disk(q) (dev_to_disk(kobj_to_dev((q)->kobj.parent))) + static inline bool queue_is_mq(struct request_queue *q) { return q->mq_ops; diff --git a/include/trace/events/kyber.h b/include/trace/events/kyber.h index c0e7d24ca256..f9802562edf6 100644 --- a/include/trace/events/kyber.h +++ b/include/trace/events/kyber.h @@ -30,7 +30,7 @@ TRACE_EVENT(kyber_latency, ), TP_fast_assign( - __entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent))); + __entry->dev = disk_devt(queue_to_disk(q)); strlcpy(__entry->domain, domain, sizeof(__entry->domain)); strlcpy(__entry->type, type, sizeof(__entry->type)); __entry->percentile = percentile; @@ -59,7 +59,7 @@ TRACE_EVENT(kyber_adjust, ), TP_fast_assign( - __entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent))); + __entry->dev = disk_devt(queue_to_disk(q)); strlcpy(__entry->domain, domain, sizeof(__entry->domain)); __entry->depth = depth; ), @@ -81,7 +81,7 @@ TRACE_EVENT(kyber_throttled, ), TP_fast_assign( - __entry->dev = disk_devt(dev_to_disk(kobj_to_dev(q->kobj.parent))); + __entry->dev = disk_devt(queue_to_disk(q)); strlcpy(__entry->domain, domain, sizeof(__entry->domain)); ), -- 2.29.2 -- dm-devel mailing list dm-devel@redhat.com https://listman.redhat.com/mailman/listinfo/dm-devel
next prev parent reply other threads:[~2021-04-01 2:22 UTC|newest] Thread overview: 92+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-01 2:19 [PATCH V5 00/12] block: support bio based io polling Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-01 2:19 ` [PATCH V5 01/12] block: add helper of blk_queue_poll Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-01 2:19 ` [PATCH V5 02/12] block: add one helper to free io_context Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-01 2:19 ` [PATCH V5 03/12] block: create io poll context for submission and poll task Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-12 10:19 ` Christoph Hellwig 2021-04-12 10:19 ` [dm-devel] " Christoph Hellwig 2021-04-01 2:19 ` [PATCH V5 04/12] block: add req flag of REQ_POLL_CTX Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-01 2:19 ` [PATCH V5 05/12] block: add new field into 'struct bvec_iter' Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-12 9:26 ` Christoph Hellwig 2021-04-12 9:26 ` [dm-devel] " Christoph Hellwig 2021-04-13 9:36 ` Ming Lei 2021-04-13 9:36 ` [dm-devel] " Ming Lei 2021-04-01 2:19 ` [PATCH V5 06/12] block/mq: extract one helper function polling hw queue Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-12 9:29 ` Christoph Hellwig 2021-04-12 9:29 ` [dm-devel] " Christoph Hellwig 2021-04-01 2:19 ` [PATCH V5 07/12] block: prepare for supporting bio_list via other link Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-12 10:18 ` Christoph Hellwig 2021-04-12 10:18 ` [dm-devel] " Christoph Hellwig 2021-04-12 11:37 ` Ming Lei 2021-04-12 11:37 ` [dm-devel] " Ming Lei 2021-04-01 2:19 ` [PATCH V5 08/12] block: use per-task poll context to implement bio based io polling Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-12 9:54 ` Christoph Hellwig 2021-04-12 9:54 ` [dm-devel] " Christoph Hellwig 2021-04-12 10:20 ` Ming Lei 2021-04-12 10:20 ` [dm-devel] " Ming Lei 2021-04-12 10:29 ` Christoph Hellwig 2021-04-12 10:29 ` [dm-devel] " Christoph Hellwig 2021-04-12 11:42 ` Ming Lei 2021-04-12 11:42 ` [dm-devel] " Ming Lei 2021-04-12 10:16 ` Christoph Hellwig 2021-04-12 10:16 ` [dm-devel] " Christoph Hellwig 2021-04-12 10:37 ` Ming Lei 2021-04-12 10:37 ` [dm-devel] " Ming Lei 2021-04-01 2:19 ` [PATCH V5 09/12] blk-mq: limit hw queues to be polled in each blk_poll() Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-01 2:19 ` Ming Lei [this message] 2021-04-01 2:19 ` [dm-devel] [PATCH V5 10/12] block: add queue_to_disk() to get gendisk from request_queue Ming Lei 2021-04-12 12:52 ` Jens Axboe 2021-04-12 12:52 ` [dm-devel] " Jens Axboe 2021-04-01 2:19 ` [PATCH V5 11/12] block: add poll_capable method to support bio-based IO polling Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-12 9:38 ` Christoph Hellwig 2021-04-12 9:38 ` [dm-devel] " Christoph Hellwig 2021-04-14 8:38 ` JeffleXu 2021-04-14 8:38 ` [dm-devel] " JeffleXu 2021-04-14 11:24 ` Ming Lei 2021-04-14 11:24 ` [dm-devel] " Ming Lei 2021-04-15 1:34 ` JeffleXu 2021-04-15 1:34 ` [dm-devel] " JeffleXu 2021-04-15 7:43 ` Ming Lei 2021-04-15 7:43 ` [dm-devel] " Ming Lei 2021-04-15 9:21 ` JeffleXu 2021-04-15 9:21 ` [dm-devel] " JeffleXu 2021-04-15 10:06 ` Ming Lei 2021-04-15 10:06 ` [dm-devel] " Ming Lei 2021-04-15 11:21 ` JeffleXu 2021-04-15 11:21 ` [dm-devel] " JeffleXu 2021-04-15 13:08 ` Ming Lei 2021-04-15 13:08 ` [dm-devel] " Ming Lei 2021-04-16 8:00 ` [PATCH] block: introduce QUEUE_FLAG_POLL_CAP flag Jeffle Xu 2021-04-16 8:00 ` [dm-devel] " Jeffle Xu 2021-04-16 8:42 ` JeffleXu 2021-04-16 8:42 ` [dm-devel] " JeffleXu 2021-04-16 9:07 ` Ming Lei 2021-04-16 9:07 ` [dm-devel] " Ming Lei 2021-04-16 10:20 ` JeffleXu 2021-04-16 10:20 ` [dm-devel] " JeffleXu 2021-04-17 14:06 ` JeffleXu 2021-04-17 14:06 ` [dm-devel] " JeffleXu 2021-04-19 2:21 ` Ming Lei 2021-04-19 2:21 ` [dm-devel] " Ming Lei 2021-04-19 5:40 ` JeffleXu 2021-04-19 5:40 ` [dm-devel] " JeffleXu 2021-04-19 13:36 ` Ming Lei 2021-04-19 13:36 ` [dm-devel] " Ming Lei 2021-04-20 7:25 ` JeffleXu 2021-04-20 7:25 ` [dm-devel] " JeffleXu 2021-04-01 2:19 ` [PATCH V5 12/12] dm: support IO polling for bio-based dm device Ming Lei 2021-04-01 2:19 ` [dm-devel] " Ming Lei 2021-04-09 15:39 ` [PATCH V5 00/12] block: support bio based io polling Ming Lei 2021-04-09 15:39 ` [dm-devel] " Ming Lei 2021-04-12 9:46 ` Christoph Hellwig 2021-04-12 9:46 ` [dm-devel] " Christoph Hellwig
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