blk_add_trace_bio_bounce 1126 kernel/trace/blktrace.c 	ret = register_trace_block_bio_bounce(blk_add_trace_bio_bounce, NULL);
blk_add_trace_bio_bounce 1165 kernel/trace/blktrace.c 	unregister_trace_block_bio_bounce(blk_add_trace_bio_bounce, NULL);