block: use lockdep_assert_held for queue locking
Instead of an ugly open coded variant. Cc: axboe@kernel.dk Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Instead of an ugly open coded variant. Cc: axboe@kernel.dk Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>