s390/dasd: Fix gendisk parent after copy pair swap

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commit c943bfc6af upstream.

After a copy pair swap the block device's "device" symlink points to
the secondary CCW device, but the gendisk's parent remained the
primary, leaving /sys/block/<dasdx> under the wrong parent.

Move the gendisk to the secondary's device with device_move(), keeping
the sysfs topology consistent after the swap.

Fixes: 413862caad ("s390/dasd: add copy pair swap capability")
Cc: stable@vger.kernel.org #6.1
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Stefan Haberland 2025-11-26 17:06:31 +01:00 • committed by Greg Kroah-Hartman

parent 129b3bc149

commit bfe512fb5b

1 changed files with 8 additions and 0 deletions

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drivers/s390/block/dasd_eckd.c

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