Jens, These patches address potential issues with zone write plugging. The first 2 patches fix handling of REQ_NOWAIT BIOs as these can be "failed" after going through the zone write plugging and changing the target zone plug zone write pointer offset. Patch 3 is a bigger fix and address a potential deadlock issue due to the zone write plugging internally issuing zone report operations to recover from write errors. This zone report operation is removed by this patch and replaced with an automatic recovery when the BIO issuer execute a zone report. This change in behavior results in a problem with REQ_OP_WRITE_ZEROES handling and failures in the dm-zoned device mapper. That is fixed in patch 4. Damien Le Moal (4): block: Use a zone write plug BIO work for REQ_NOWAIT BIOs block: Ignore REQ_NOWAIT for zone reset and zone finish operations block: Prevent potential deadlocks in zone write plug error recovery dm: Fix dm-zoned-reclaim zone write pointer alignment block/blk-zoned.c | 507 +++++++++++++++------------------- drivers/md/dm-zoned-reclaim.c | 4 +- include/linux/blkdev.h | 5 +- 3 files changed, 229 insertions(+), 287 deletions(-) -- 2.47.0
