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[ Upstream commit 31ade7d4fdcf382beb8cb229a1f5d77e0f239672 ]
Discard and Write Zeroes are different operation and implemented
by different fallocate opcodes for ubd. If one fails the other one
can work and vice versa.
Split the code to disable the operations in ubd_handler to only
disable the operation that actually failed.
Fixes: 50109b5a03b4 ("um: Add support for DISCARD in the UBD Driver")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-By: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Link: https://lore.kernel.org/r/20240531074837.1648501-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5535adc933