On Wed, 2017-09-27 at 21:38 -0400, Martin K. Petersen wrote: > A user may lower the max_sectors_kb setting in sysfs to accommodate > certain workloads. Previously we would always set the max I/O size to > either the block layer default or the optional preferred I/O size > reported by the device. > > Keep the current heuristics for the initial setting of > max_sectors_kb. > For subsequent invocations, only update the current queue limit if it > exceeds the capabilities of the hardware. > > Reported-by: Don Brace <don.brace@xxxxxxxxxxxxx> > Signed-off-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> This looks good to me. I agree that it's superior to the original suggestion, because it sets the soft limit to the hard limit when the device is scanned for the first time. Regards Martin -- Dr. Martin Wilck <mwilck@xxxxxxxx>, Tel. +49 (0)911 74053 2107 SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton HRB 21284 (AG Nürnberg)
