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| author | Christoph Hellwig <hch@lst.de> | 2023-02-03 16:02:09 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2023-02-06 08:44:55 -0700 |
| commit | e81cd5a983bb35dabd38ee472cf3fea1c63e0f23 (patch) | |
| tree | 20d39a9e8085f53e7c2002a61280dc43ca8ce875 /Documentation/block | |
| parent | 28e538a3093833cbac3e28dd511a8b74629d737a (diff) | |
| download | lwn-e81cd5a983bb35dabd38ee472cf3fea1c63e0f23.tar.gz lwn-e81cd5a983bb35dabd38ee472cf3fea1c63e0f23.zip | |
block: stub out and deprecated the capability attribute on the gendisk
The capability attribute was added in 2017 to expose the kernel internal
GENHD_FL_MEDIA_CHANGE_NOTIFY to userspace without ever adding a value to
an UAPI header, and without ever setting it in any driver until it was
finally removed in Linux 5.7.
Deprecate the file and always return 0 instead of exposing the other
internal and frequently renumbered other gendisk flags.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Link: https://lore.kernel.org/r/20230203150209.3199115-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'Documentation/block')
| -rw-r--r-- | Documentation/block/capability.rst | 10 | ||||
| -rw-r--r-- | Documentation/block/index.rst | 1 |
2 files changed, 0 insertions, 11 deletions
diff --git a/Documentation/block/capability.rst b/Documentation/block/capability.rst deleted file mode 100644 index 2ae7f064736a..000000000000 --- a/Documentation/block/capability.rst +++ /dev/null @@ -1,10 +0,0 @@ -=============================== -Generic Block Device Capability -=============================== - -This file documents the sysfs file ``block/<disk>/capability``. - -``capability`` is a bitfield, printed in hexadecimal, indicating which -capabilities a specific block device supports: - -.. kernel-doc:: include/linux/blkdev.h diff --git a/Documentation/block/index.rst b/Documentation/block/index.rst index c4c73db748a8..102953166429 100644 --- a/Documentation/block/index.rst +++ b/Documentation/block/index.rst @@ -10,7 +10,6 @@ Block bfq-iosched biovecs blk-mq - capability cmdline-partition data-integrity deadline-iosched |