From: Eric Biggers Date: Thu, 9 Dec 2021 00:38:31 +0000 (-0800) Subject: docs: sysfs-block: document virt_boundary_mask X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8bc2f7c67061cb39e317a45ad9870f529b1fb190;p=linux.git docs: sysfs-block: document virt_boundary_mask /sys/block//queue/virt_boundary_mask is completely undocumented. Document it. Reviewed-by: Bart Van Assche Signed-off-by: Eric Biggers Link: https://lore.kernel.org/r/20211209003833.6396-7-ebiggers@kernel.org Signed-off-by: Jens Axboe --- diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block index 288626e8cb532..8dd3e84a8aade 100644 --- a/Documentation/ABI/stable/sysfs-block +++ b/Documentation/ABI/stable/sysfs-block @@ -544,6 +544,18 @@ Description: CONFIG_BLK_DEV_THROTTLING_LOW is enabled. +What: /sys/block//queue/virt_boundary_mask +Date: April 2021 +Contact: linux-block@vger.kernel.org +Description: + [RO] This file shows the I/O segment memory alignment mask for + the block device. I/O requests to this device will be split + between segments wherever either the memory address of the end + of the previous segment or the memory address of the beginning + of the current segment is not aligned to virt_boundary_mask + 1 + bytes. + + What: /sys/block//queue/wbt_lat_usec Date: November 2016 Contact: linux-block@vger.kernel.org