blk-stat: don't use this_cpu_ptr() in a preemptable section
If PREEMPT_RCU is enabled, rcu_read_lock() isn't strong enough for us to use this_cpu_ptr() in that section. Use the safer get/put_cpu_ptr() variants instead. Reported-by:Mike Galbraith <efault@gmx.de> Fixes: 34dbad5d ("blk-stat: convert to callback-based statistics reporting") Signed-off-by:
Jens Axboe <axboe@fb.com>
parent
340ff321
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