Document the start and size fields (which were introduced in commit
v2.5.42-215-gb288f6a) to avoid guesswork on the unit.
Signed-off-by: Peter Wu <[email protected]>
---
Hi,
As the meaning has not changed for over 13 years, I would like to
formalize these attributes such that users can rely on it[1][2].
The sector definition was inspired by the block/stat.txt documentation.
By the way, the ABI/README document is ambiguous on the meaning of
"Date", is it the creation date of the documentation entry or the
creation of the filesystem interface? I have chosen the latter here.
Kind regards,
Peter
[1]: https://lkml.kernel.org/r/[email protected]
[2]: https://unix.stackexchange.com/questions/52215/determine-the-size-of-a-block-device#comment112867_52219
---
Documentation/ABI/testing/sysfs-block | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/Documentation/ABI/testing/sysfs-block b/Documentation/ABI/testing/sysfs-block
index 71d184d..b85a266 100644
--- a/Documentation/ABI/testing/sysfs-block
+++ b/Documentation/ABI/testing/sysfs-block
@@ -235,3 +235,20 @@ Description:
write_same_max_bytes is 0, write same is not supported
by the device.
+What: /sys/block/<disk>/<partition>/start
+Date: October 2002
+Contact: [email protected]
+Kernel Version: 2.5.43
+Description:
+ Starting position of the partition within the disk.
+ Measured in standard UNIX 512-byte sectors (not a
+ device-specific block size).
+
+What: /sys/block/<disk>/<partition>/size
+Date: October 2002
+Contact: [email protected]
+Kernel Version: 2.5.43
+Description:
+ Size of the partition in standard UNIX 512-byte sectors
+ (not a device-specific block size).
+
--
2.6.4