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Commit 1ea5c403 authored by Ming Lei's avatar Ming Lei Committed by Greg Kroah-Hartman
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block: make sure writesame bio is aligned with logical block size


commit 34ffec60 upstream.

Obviously the created writesame bio has to be aligned with logical block
size, and use bio_allowed_max_sectors() to retrieve this number.

Cc: stable@vger.kernel.org
Cc: Mike Snitzer <snitzer@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Xiao Ni <xni@redhat.com>
Cc: Mariusz Dabrowski <mariusz.dabrowski@intel.com>
Fixes: b49a0871 ("block: remove split code in blkdev_issue_{discard,write_same}")
Tested-by: default avatarRui Salvaterra <rsalvaterra@gmail.com>
Signed-off-by: default avatarMing Lei <ming.lei@redhat.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 14657efd
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