/* SPDX-License-Identifier: GPL-2.0 */#ifndef __LIBPERF_INTERNAL_LIB_H#define __LIBPERF_INTERNAL_LIB_H #include <sys/types.h> extern unsigned int page_size; ssize_t readn(int fd, void *buf, size_t n);ssize_t writen(int fd, const void *buf, size_t n); #endif /* __LIBPERF_INTERNAL_CPUMAP_H */