On 10/14/18 6:45 PM, Damien Le Moal wrote: > Jens, > > On 2018/10/14 7:43, Jens Axboe wrote: >> On 10/12/18 4:08 AM, Damien Le Moal wrote: >>> This series improves zoned block device support (reduce overhead) and >>> introduces many simplifications to the code (overall, there are more deletions >>> than insertions). >>> >>> In more details: >>> * Patches 1 to 3 are SCSI side (sd driver) cleanups and improvements reducing >>> the overhead of report zones command execution during disk scan and >>> revalidation. >>> * Patches 4 to 9 improve the useability and user API of zoned block devices. >>> * Patch 10 is the main part of this series. This patch replaces the >>> REQ_OP_ZONE_REPORT BIO/request operation for executing report zones commands >>> with a block device file operation, removing the need for the command reply >>> payload in-place rewriting in the BIO buffer. This leads to major >>> simplification of the code in many places. >>> * Patch 11 further simplifies the code of low level drivers by providing a >>> generic implementation of zoned block device request queue zone bitmaps >>> initialization and revalidation. >>> >>> Please consider the addition of these patches in 4.20. >>> Comments are as always welcome. >> >> How do we want to funnel this series? 1-3 look separate, so perhaps >> they should go through the scsi tree. Then I can take the rest. Or do >> some of the later ones depend on 1-3 being in, in terms of applying >> cleanly? I can also take all of them, looks like only #3 needs a >> SCSI ack. > > Patch 10 and 11 will not apply cleanly for the scsi part without 1-3 > in first. 1-3, 10 and 11 would need an ack/review from Martin (SCSI). > And 10-11 also probably need an ack/review from Mike for the DM > changes. Probably want to start pinging people, if you're targeting 4.20 with this... -- Jens Axboe
