Re: [PATCH RFC v6 05/10] blk-mq: Add support in hctx_tags_bitmap_show() for a shared sbitmap

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On 3/5/20 12:54 PM, John Garry wrote:
Since a set-wide shared tag sbitmap may be used, it is no longer valid to
examine the per-hctx tagset for getting the active requests for a hctx
(when a shared sbitmap is used).

As such, add support for the shared sbitmap by using an intermediate
sbitmap per hctx, iterating all active tags for the specific hctx in the
shared sbitmap.

Originally-by: Bart Van Assche <bvanassche@xxxxxxx>
Signed-off-by: John Garry <john.garry@xxxxxxxxxx>
---
  block/blk-mq-debugfs.c | 57 ++++++++++++++++++++++++++++++++++++++++--
  1 file changed, 55 insertions(+), 2 deletions(-)

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke            Teamlead Storage & Networking
hare@xxxxxxx                               +49 911 74053 688
SUSE Software Solutions GmbH, Maxfeldstr. 5, 90409 Nürnberg
HRB 36809 (AG Nürnberg), Geschäftsführer: Felix Imendörffer



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