Re: [PATCH 3/7] nfsd/blocklayout: use ->get_unique_id instead of sending SCSI commands

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On 10/12/21 2:04 PM, Christoph Hellwig wrote:
Call the ->get_unique_id method to query the SCSI identifiers.  This can
use the cached VPD page in the sd driver instead of sending a command
on every LAYOUTGET.  It will also allow to support NVMe based volumes
if the draft for that ever takes off.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
  fs/nfsd/Kconfig       |   1 -
  fs/nfsd/blocklayout.c | 158 +++++++++++-------------------------------
  fs/nfsd/nfs4layouts.c |   5 +-
  3 files changed, 44 insertions(+), 120 deletions(-)

Not that I'm an NFS expert, but anyway:

Reviewed-by: Hannes Reinecke <hare@xxxxxxx>

Cheers,

Hannes
--
Dr. Hannes Reinecke                Kernel Storage Architect
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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