block: inherit the zoned characteristics in blk_stack_limits
Lift the code from device mapper into blk_stack_limits to inherity
the stacking limitations. This ensures we do the right thing for
all stacked zoned block devices.
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Damien Le Moal <damien.lemoal@wdc.com>
Tested-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 9a2c23c..9cddbd7 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -609,6 +609,7 @@ int blk_stack_limits(struct queue_limits *t, struct queue_limits *b,
t->chunk_sectors = min_not_zero(t->chunk_sectors,
b->chunk_sectors);
+ t->zoned = max(t->zoned, b->zoned);
return ret;
}
EXPORT_SYMBOL(blk_stack_limits);