perf_read         184 arch/parisc/kernel/perf.c static ssize_t perf_read(struct file *file, char __user *buf, size_t cnt, loff_t *ppos);
perf_read         470 arch/parisc/kernel/perf.c 	.read = perf_read,
perf_read         191 drivers/gpu/drm/msm/msm_perf.c 	.read = perf_read,
perf_read        5940 kernel/events/core.c 	.read			= perf_read,