[PATCH v3 6/8] docs: sysfs-block: document virt_boundary_mask
From: Eric Biggers <ebiggers@kernel.org>
Date: 2021-12-09 00:40:21
Also in:
linux-doc, lkml
Subsystem:
block layer, the rest · Maintainers:
Jens Axboe, Linus Torvalds
From: Eric Biggers <redacted> /sys/block/<disk>/queue/virt_boundary_mask is completely undocumented. Document it. Reviewed-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Eric Biggers <redacted> --- Documentation/ABI/stable/sysfs-block | 12 ++++++++++++ 1 file changed, 12 insertions(+)
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/<disk>/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/<disk>/queue/wbt_lat_usec Date: November 2016 Contact: linux-block@vger.kernel.org
--
2.34.1