On Thu, Mar 28, 2024 at 09:44:09AM +0900, Damien Le Moal wrote: > With the block layer zone write plugging being automatically done for > any write operation to a zone of a zoned block device, a regular request > plugging handled through current->plug can only ever see at most a > single write request per zone. In such case, any potential reordering > of the plugged requests will be harmless. We can thus remove the special > casing for write operations to zones and have these requests plugged as > well. This allows removing the function blk_mq_plug and instead directly > using current->plug where needed. This looks good in general: Reviewed-by: Christoph Hellwig <hch@xxxxxx> But IIRC we recently had a report that plus reorder I/Os, which would be grave for the extent layout if we haven't fixed that yet, so we should probably look into it first.
