From: Andreas Hindborg <a.hindborg@xxxxxxxxxxx> Hi All, This patch set adds zoned storage support to `ublk`. The first two patches does some house cleaning in preparation for the last two patches. The third patch adds support for report_zones and the following operations: - REQ_OP_ZONE_OPEN - REQ_OP_ZONE_CLOSE - REQ_OP_ZONE_FINISH - REQ_OP_ZONE_RES The last patch adds support for REQ_OP_ZONE_APPEND. v3 [2] -> v4 changes: - Split up v3 patches - Add zone append support - Change order of variables in `ublk_report_zones` Read/write and zone operations are tested with zenfs [3]. The zone append path is tested with fio -> zonefs -> ublk -> null_blk. The implementation of zone append requires ublk user copy feature, and therefore the series is based on branch for-next (6afa337a3789) of [4]. [1] https://github.com/metaspace/ubdsrv/commit/7de0d901c329fde7dc5a2e998952dd88bf5e668b [2] https://lore.kernel.org/linux-block/20230316145539.300523-1-nmi@xxxxxxxxxxxx/ [3] https://github.com/westerndigitalcorporation/zenfs [4] https://git.kernel.dk/linux.git Andreas Hindborg (4): ublk: change ublk IO command defines to enum ublk: move types to shared header file ublk: enable zoned storage support ublk: add zone append MAINTAINERS | 2 + drivers/block/Kconfig | 4 + drivers/block/Makefile | 4 +- drivers/block/ublk_drv-zoned.c | 155 +++++++++++++++++++++++++++++++++ drivers/block/ublk_drv.c | 150 +++++++++++++++++++------------ drivers/block/ublk_drv.h | 71 +++++++++++++++ include/uapi/linux/ublk_cmd.h | 38 ++++++-- 7 files changed, 363 insertions(+), 61 deletions(-) create mode 100644 drivers/block/ublk_drv-zoned.c create mode 100644 drivers/block/ublk_drv.h base-commit: 3261ea42710e9665c9151006049411bd23b5411f -- 2.41.0
