size_t qemu_fd_getpagesize(int fd) { #ifdef CONFIG_LINUX struct statfs fs; int ret; if (fd != -1) { do { ret = fstatfs(fd, &fs); } while (ret != 0 && errno == EINTR); if (ret == 0 && fs.f_type == HUGETLBFS_MAGIC) { return fs.f_bsize; } } return getpagesize(); }