From: Eric Biggers <ebiggers@kernel.org>
To: linux-block@vger.kernel.org, Jens Axboe <axboe@kernel.dk>
Cc: linux-doc@vger.kernel.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, Hannes Reinecke <hare@suse.de>
Subject: [PATCH v2 6/8] docs: sysfs-block: document virt_boundary_mask
Date: Tue, 7 Dec 2021 16:56:38 -0800 [thread overview]
Message-ID: <20211208005640.102814-7-ebiggers@kernel.org> (raw)
In-Reply-To: <20211208005640.102814-1-ebiggers@kernel.org>
From: Eric Biggers <ebiggers@google.com>
/sys/block/<disk>/queue/virt_boundary_mask is completely undocumented.
Document it.
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
Documentation/ABI/stable/sysfs-block | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block
index 30ce8dc587bb2..e988742a54a4c 100644
--- a/Documentation/ABI/stable/sysfs-block
+++ b/Documentation/ABI/stable/sysfs-block
@@ -537,6 +537,17 @@ 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 alignment mask for the
+ block device. I/O requests to this device will be split between
+ segments wherever either the end of the previous segment or 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
next prev parent reply other threads:[~2021-12-08 0:57 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-08 0:56 [PATCH v2 0/8] docs: consolidate sysfs-block into Documentation/ABI/ Eric Biggers
2021-12-08 0:56 ` [PATCH v2 1/8] docs: sysfs-block: move to stable directory Eric Biggers
2021-12-08 0:56 ` [PATCH v2 2/8] docs: sysfs-block: sort alphabetically Eric Biggers
2021-12-08 0:56 ` [PATCH v2 3/8] docs: sysfs-block: add contact for nomerges Eric Biggers
2021-12-08 0:56 ` [PATCH v2 4/8] docs: sysfs-block: fill in missing documentation from queue-sysfs.rst Eric Biggers
2021-12-08 0:56 ` [PATCH v2 5/8] docs: sysfs-block: document stable_writes Eric Biggers
2021-12-08 18:01 ` Bart Van Assche
2021-12-08 22:34 ` Eric Biggers
2021-12-08 22:59 ` Bart Van Assche
2021-12-08 0:56 ` Eric Biggers [this message]
2021-12-08 18:33 ` [PATCH v2 6/8] docs: sysfs-block: document virt_boundary_mask Bart Van Assche
2021-12-08 22:38 ` Eric Biggers
2021-12-08 22:59 ` Bart Van Assche
2021-12-08 0:56 ` [PATCH v2 7/8] docs: block: remove queue-sysfs.rst Eric Biggers
2021-12-08 0:56 ` [PATCH v2 8/8] MAINTAINERS: add entries for block layer documentation Eric Biggers
2021-12-08 3:01 ` [PATCH v2 0/8] docs: consolidate sysfs-block into Documentation/ABI/ Martin K. Petersen
2021-12-08 18:35 ` Bart Van Assche
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