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authorDamien Le Moal <damien.lemoal@wdc.com>2021-01-28 05:47:26 +0100
committerJens Axboe <axboe@kernel.dk>2021-02-10 15:44:40 +0100
commitf1836426cea77fad342aa74bec8bf489a5d64b27 (patch)
tree749357b76cefc4c279e366a6e6480b126032ce11 /Documentation
parentblock: use bi_max_vecs to find the bvec pool (diff)
downloadlinux-f1836426cea77fad342aa74bec8bf489a5d64b27.tar.xz
linux-f1836426cea77fad342aa74bec8bf489a5d64b27.zip
block: document zone_append_max_bytes attribute
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> Reviewed-by: Johannes Thumshirn <johannes.thumshirn@edc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/block/queue-sysfs.rst6
1 files changed, 6 insertions, 0 deletions
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