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authorChristoph Hellwig <hch@lst.de>2023-02-03 16:02:09 +0100
committerJens Axboe <axboe@kernel.dk>2023-02-06 16:44:55 +0100
commite81cd5a983bb35dabd38ee472cf3fea1c63e0f23 (patch)
tree20d39a9e8085f53e7c2002a61280dc43ca8ce875 /Documentation/block
parentblk-cgroup: fix freeing NULL blkg in blkg_create (diff)
downloadlinux-e81cd5a983bb35dabd38ee472cf3fea1c63e0f23.tar.xz
linux-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.rst10
-rw-r--r--Documentation/block/index.rst1
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