diff options
| author | Peter Xu <peterx@redhat.com> | 2022-01-15 01:08:01 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-01-15 17:30:30 +0300 |
| commit | fab51505480058dcb63d973515c748fa6c437cab (patch) | |
| tree | 43c9b021c96cb085fe21d667b81ddbf7bc5c9891 /tools/testing/selftests | |
| parent | 209376ed2a8431ccb4c40fdcef11194fc1e749b0 (diff) | |
| download | linux-fab51505480058dcb63d973515c748fa6c437cab.tar.xz | |
selftests/uffd: allow EINTR/EAGAIN
This allow test to continue with interruptions like gdb.
Link: https://lkml.kernel.org/r/20211115135219.85881-1-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Axel Rasmussen <axelrasmussen@google.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'tools/testing/selftests')
| -rw-r--r-- | tools/testing/selftests/vm/userfaultfd.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index 990f7aecf4a3..c9eddd25ba17 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -648,7 +648,7 @@ static int uffd_read_msg(int ufd, struct uffd_msg *msg) if (ret != sizeof(*msg)) { if (ret < 0) { - if (errno == EAGAIN) + if (errno == EAGAIN || errno == EINTR) return 1; err("blocking read error"); } else { @@ -724,8 +724,11 @@ static void *uffd_poll_thread(void *arg) for (;;) { ret = poll(pollfd, 2, -1); - if (ret <= 0) + if (ret <= 0) { + if (errno == EINTR || errno == EAGAIN) + continue; err("poll error: %d", ret); + } if (pollfd[1].revents & POLLIN) { if (read(pollfd[1].fd, &tmp_chr, 1) != 1) err("read pipefd error"); |