From: Shaun Tancheff <shaun.tanch...@seagate.com>

Define REQ_OP_ZONE_REPORT and REQ_OP_ZONE_RESET for handling zones of
host-managed and host-aware zoned block devices. With with these two
new operations, the total number of operations defined reaches 8 and
still fits with the 3 bits definition of REQ_OP_BITS.

Signed-off-by: Shaun Tancheff <shaun.tanch...@seagate.com>
Signed-off-by: Damien Le Moal <damien.lem...@hgst.com>
Reviewed-by: Christoph Hellwig <h...@lst.de>
Reviewed-by: Martin K. Petersen <martin.peter...@oracle.com>
Reviewed-by: Hannes Reinecke <h...@suse.com>
---
 block/blk-core.c          | 4 ++++
 include/linux/blk_types.h | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/block/blk-core.c b/block/blk-core.c
index 14d7c07..e4eda5d 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1941,6 +1941,10 @@ generic_make_request_checks(struct bio *bio)
        case REQ_OP_WRITE_SAME:
                if (!bdev_write_same(bio->bi_bdev))
                        goto not_supported;
+       case REQ_OP_ZONE_REPORT:
+       case REQ_OP_ZONE_RESET:
+               if (!bdev_is_zoned(bio->bi_bdev))
+                       goto not_supported;
                break;
        default:
                break;
diff --git a/include/linux/blk_types.h b/include/linux/blk_types.h
index cd395ec..dd50dce 100644
--- a/include/linux/blk_types.h
+++ b/include/linux/blk_types.h
@@ -243,6 +243,8 @@ enum req_op {
        REQ_OP_SECURE_ERASE,    /* request to securely erase sectors */
        REQ_OP_WRITE_SAME,      /* write same block many times */
        REQ_OP_FLUSH,           /* request for cache flush */
+       REQ_OP_ZONE_REPORT,     /* Get zone information */
+       REQ_OP_ZONE_RESET,      /* Reset a zone write pointer */
 };
 
 #define REQ_OP_BITS 3
-- 
2.7.4

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