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| author | Ming Lei <[email protected]> | 2023-06-03 04:06:01 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2023-06-04 14:34:14 +0000 |
| commit | b5bbc52fd01278642773818642288999a0236cb6 (patch) | |
| tree | 7e269e6fb9c5ec307fc088cae0afe8a2c5230ac9 /fs/btrfs/dev-replace.c | |
| parent | block: Replace all non-returning strlcpy with strscpy (diff) | |
| download | kernel-b5bbc52fd01278642773818642288999a0236cb6.tar.gz kernel-b5bbc52fd01278642773818642288999a0236cb6.zip | |
ublk: add control command of UBLK_U_CMD_GET_FEATURES
Add control command of UBLK_U_CMD_GET_FEATURES for returning driver's
feature set or capability.
This way can simplify userspace for maintaining compatibility because
userspace doesn't need to send command to one device for querying driver
feature set any more. Such as, with the queried feature set, userspace
can choose to use:
- UBLK_CMD_GET_DEV_INFO2 or UBLK_CMD_GET_DEV_INFO,
- UBLK_U_CMD_* or UBLK_CMD_*
Userspace code:
https://github.com/ming1/ubdsrv/commits/features-cmd
Signed-off-by: Ming Lei <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'fs/btrfs/dev-replace.c')
0 files changed, 0 insertions, 0 deletions