diff options
Diffstat (limited to 'Documentation/block')
| -rw-r--r-- | Documentation/block/biovecs.rst | 2 | ||||
| -rw-r--r-- | Documentation/block/queue-sysfs.rst | 13 |
2 files changed, 15 insertions, 0 deletions
diff --git a/Documentation/block/biovecs.rst b/Documentation/block/biovecs.rst index 36771a131b56..ddb867e0185b 100644 --- a/Documentation/block/biovecs.rst +++ b/Documentation/block/biovecs.rst @@ -40,6 +40,8 @@ normal code doesn't have to deal with bi_bvec_done. There is a lower level advance function - bvec_iter_advance() - which takes a pointer to a biovec, not a bio; this is used by the bio integrity code. +As of 5.12 bvec segments with zero bv_len are not supported. + What's all this get us? ======================= diff --git a/Documentation/block/queue-sysfs.rst b/Documentation/block/queue-sysfs.rst index 2638d3446b79..4dc7f0d499a8 100644 --- a/Documentation/block/queue-sysfs.rst +++ b/Documentation/block/queue-sysfs.rst @@ -261,6 +261,12 @@ For block drivers that support REQ_OP_WRITE_ZEROES, the maximum number of bytes that can be zeroed at once. The value 0 means that REQ_OP_WRITE_ZEROES is not supported. +zone_append_max_bytes (RO) +-------------------------- +This is the maximum number of bytes that can be written to a sequential +zone of a zoned block device using a zone append write operation +(REQ_OP_ZONE_APPEND). This value is always 0 for regular block devices. + zoned (RO) ---------- This indicates if the device is a zoned block device and the zone model of the @@ -273,4 +279,11 @@ devices are described in the ZBC (Zoned Block Commands) and ZAC do not support zone commands, they will be treated as regular block devices and zoned will report "none". +zone_write_granularity (RO) +--------------------------- +This indicates the alignment constraint, in bytes, for write operations in +sequential zones of zoned block devices (devices with a zoned attributed +that reports "host-managed" or "host-aware"). This value is always 0 for +regular block devices. + Jens Axboe <jens.axboe@oracle.com>, February 2009 |