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| author | Eric Biggers <ebiggers@google.com> | 2021-12-09 01:38:31 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-01-10 02:59:10 +0100 |
| commit | 8bc2f7c67061cb39e317a45ad9870f529b1fb190 (patch) | |
| tree | 83acf487532d7c7af0607e7bcbce25af3c09031d /Documentation/ABI/stable/sysfs-block | |
| parent | docs: sysfs-block: document stable_writes (diff) | |
| download | linux-8bc2f7c67061cb39e317a45ad9870f529b1fb190.tar.xz linux-8bc2f7c67061cb39e317a45ad9870f529b1fb190.zip | |
docs: sysfs-block: document virt_boundary_mask
/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 <ebiggers@google.com>
Link: https://lore.kernel.org/r/20211209003833.6396-7-ebiggers@kernel.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/ABI/stable/sysfs-block')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-block | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block index 288626e8cb53..8dd3e84a8aad 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 |