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[2/2] block: document zone_append_max_bytes attribute

Message ID 20210119084103.1631698-3-damien.lemoal@wdc.com (mailing list archive)
State New, archived
Headers show
Series block: add zone write granularity limit | expand

Commit Message

Damien Le Moal Jan. 19, 2021, 8:41 a.m. UTC 
The description of the zone_append_max_bytes sysfs queue attribute is
missing from Documentation/block/queue-sysfs.rst. Add it.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
---
 Documentation/block/queue-sysfs.rst | 6 ++++++
 1 file changed, 6 insertions(+)

Comments

Johannes Thumshirn Jan. 19, 2021, 9:04 a.m. UTC | #1 
On 19/01/2021 09:44, Damien Le Moal wrote:
> +(REQ_OP_ZONE_APPEND). This value if always 0 for regular block devices.
                                is ~^
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Patch

diff --git a/Documentation/block/queue-sysfs.rst b/Documentation/block/queue-sysfs.rst
index c8bf8bc3c03a..e730d1b1c11f 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 if always 0 for regular block devices.
+
 zoned (RO)
 ----------
 This indicates if the device is a zoned block device and the zone model of the