On 04/15/2016 08:01 PM, Hannes Reinecke wrote:
On 04/15/2016 05:47 PM, Bart Van Assche wrote:
On 04/04/2016 03:00 AM, Hannes Reinecke wrote:
+static int
+sd_zbc_report_zones(struct scsi_disk *sdkp, sector_t start_lba,
+ unsigned char *buffer, int bufflen )
+{
[ ... ]
+ put_unaligned_be64(start_lba, &cmd[2]);
+ put_unaligned_be32(bufflen, &cmd[10]);
The argument "sector_t start_lba" is confusing me. Isn't a number either
a sector number or an LBA? Shouldn't that number be shifted right by
ilog2(sdp->sector_size) - 9 before storing it in the CDB?
Well. I've considered the 'lba' the native disk lba, and sector the
(logical) sector number from the block layer.
I was under the impression that this was the correct nomenclature here;
if not I'm happy to change it.
But yes, I should be adding a documentation to that function.
I've changed sd_zbc_report_zones() to use the sector number,
not the LBA. And added some documentation clarifying that.
Thanks for the review.
Cheers,
Hannes
--
Dr. Hannes Reinecke zSeries & Storage
hare@xxxxxxx +49 911 74053 688
SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg
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