ublk: add union ublk_io_buf with improved naming

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[ Upstream commit 8d61ece156 ]

Add `union ublk_io_buf` for naming the anonymous union of struct ublk_io's
addr and buf fields, meantime apply it to `struct ublk_io` for storing either
ublk auto buffer register data or ublk server io buffer address.

The union uses clear field names:
- `addr`: for regular ublk server io buffer addresses
- `auto_reg`: for ublk auto buffer registration data

This eliminates confusing access patterns and improves code readability.

Reviewed-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Stable-dep-of: c258f5c450 ("ublk: fix deadlock when reading partition table")
Signed-off-by: Sasha Levin <sashal@kernel.org>

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Ming Lei 2025-11-21 09:58:25 +08:00 • committed by Greg Kroah-Hartman

parent 0f6f3cf11b

commit 5907d42340

1 changed files with 22 additions and 18 deletions

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drivers/block/ublk_drv.c

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