Searched refs:uffd (Results 1 - 1 of 1) sorted by relevance

/linux-4.4.14/tools/testing/selftests/vm/
H A Duserfaultfd.c80 static int uffd, finished, *pipefd; variable
232 if (ioctl(uffd, UFFDIO_COPY, &uffdio_copy)) { copy_page()
255 pollfd[0].fd = uffd; uffd_poll_thread()
275 ret = read(uffd, &msg, sizeof(msg)); uffd_poll_thread()
311 ret = read(uffd, &msg, sizeof(msg)); uffd_read_thread()
439 uffd = syscall(__NR_userfaultfd, O_CLOEXEC | O_NONBLOCK); userfaultfd_stress()
440 if (uffd < 0) { userfaultfd_stress()
445 uffd_flags = fcntl(uffd, F_GETFD, NULL); userfaultfd_stress()
449 if (ioctl(uffd, UFFDIO_API, &uffdio_api)) { userfaultfd_stress()
519 fcntl(uffd, F_SETFL, uffd_flags | O_NONBLOCK); userfaultfd_stress()
521 fcntl(uffd, F_SETFL, uffd_flags & ~O_NONBLOCK); userfaultfd_stress()
527 if (ioctl(uffd, UFFDIO_REGISTER, &uffdio_register)) { userfaultfd_stress()
575 if (ioctl(uffd, UFFDIO_UNREGISTER, &uffdio_register.range)) { userfaultfd_stress()

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