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[v4,1/8] block: document zone_append_max_bytes attribute

Message ID 20210128044733.503606-2-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. 28, 2021, 4:47 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>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
 Documentation/block/queue-sysfs.rst | 6 ++++++
 1 file changed, 6 insertions(+)


Johannes Thumshirn Jan. 28, 2021, 10:20 a.m. UTC | #1
Looks good,
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
diff mbox series


diff --git a/Documentation/block/queue-sysfs.rst b/Documentation/block/queue-sysfs.rst
index 2638d3446b79..edc6e6960b96 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