diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-20 09:12:49 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2020-07-21 00:38:52 +0300 |
| commit | 3093a479727be194996dbc40f803711af5877be4 (patch) | |
| tree | 7b85597ee0028fc4cc5962eb416f21a09da39f90 /include/linux/blkdev.h | |
| parent | 4f43d648078a754aefe6a4de233ebb6e4d192aa6 (diff) | |
| download | linux-3093a479727be194996dbc40f803711af5877be4.tar.xz | |
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>
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 63078944909c..9e331a1eb35f 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -306,11 +306,14 @@ enum blk_queue_state { /* * Zoned block device models (zoned limit). + * + * Note: This needs to be ordered from the least to the most severe + * restrictions for the inheritance in blk_stack_limits() to work. */ enum blk_zoned_model { - BLK_ZONED_NONE, /* Regular block device */ - BLK_ZONED_HA, /* Host-aware zoned block device */ - BLK_ZONED_HM, /* Host-managed zoned block device */ + BLK_ZONED_NONE = 0, /* Regular block device */ + BLK_ZONED_HA, /* Host-aware zoned block device */ + BLK_ZONED_HM, /* Host-managed zoned block device */ }; struct queue_limits { |