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biolatency.py: use blk_account_io_done instead of blk_account_io_comp…
…letion (iovisor#2109) The biolatency tool attaches kprobe at blk_account_io_completion() function to check when a request is finished. But sometimes request can be finished partially and blk_account_io_completion() is called again. The blk_account_io_done() is called when a request is finally finished and biolatency tool should attach blk_account_io_done(), not blk_account_io_completion(). Signed-off-by: Gioh Kim <[email protected]>
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