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| author | Christoph Hellwig <hch@lst.de> | 2024-05-02 16:00:33 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-25 17:28:40 +0300 |
| commit | 646eb6bb115b826ec5f205b9c35b247c97c6915d (patch) | |
| tree | e38d92cab0d7b650ca44c0b925ba129b41d39a6e /Documentation | |
| parent | 0f40eb57741a6f48ecd91585fce375562239459a (diff) | |
| download | linux-646eb6bb115b826ec5f205b9c35b247c97c6915d.tar.xz | |
block: add a partscan sysfs attribute for disks
commit a4217c6740dc64a3eb6815868a9260825e8c68c6 upstream.
Userspace had been unknowingly relying on a non-stable interface of
kernel internals to determine if partition scanning is enabled for a
given disk. Provide a stable interface for this purpose instead.
Cc: stable@vger.kernel.org # 6.3+
Depends-on: 140ce28dd3be ("block: add a disk_has_partscan helper")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/linux-block/ZhQJf8mzq_wipkBH@gardel-login/
Link: https://lore.kernel.org/r/20240502130033.1958492-3-hch@lst.de
[axboe: add links and commit message from Keith]
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-block | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-block b/Documentation/ABI/stable/sysfs-block index 1fe9a553c37b..f0025d1c3d5a 100644 --- a/Documentation/ABI/stable/sysfs-block +++ b/Documentation/ABI/stable/sysfs-block @@ -101,6 +101,16 @@ Description: devices that support receiving integrity metadata. +What: /sys/block/<disk>/partscan +Date: May 2024 +Contact: Christoph Hellwig <hch@lst.de> +Description: + The /sys/block/<disk>/partscan files reports if partition + scanning is enabled for the disk. It returns "1" if partition + scanning is enabled, or "0" if not. The value type is a 32-bit + unsigned integer, but only "0" and "1" are valid values. + + What: /sys/block/<disk>/<partition>/alignment_offset Date: April 2009 Contact: Martin K. Petersen <martin.petersen@oracle.com> |