From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-it0-f70.google.com (mail-it0-f70.google.com [209.85.214.70]) by kanga.kvack.org (Postfix) with ESMTP id 4CBEC6B026F for ; Fri, 16 Dec 2016 09:48:30 -0500 (EST) Received: by mail-it0-f70.google.com with SMTP id b132so21281272iti.5 for ; Fri, 16 Dec 2016 06:48:30 -0800 (PST) Received: from mx1.redhat.com (mx1.redhat.com. [209.132.183.28]) by mx.google.com with ESMTPS id w17si2960116itb.20.2016.12.16.06.48.29 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 16 Dec 2016 06:48:29 -0800 (PST) From: Andrea Arcangeli Subject: [PATCH 39/42] userfaultfd: non-cooperative: selftest: add ufd parameter to copy_page Date: Fri, 16 Dec 2016 15:48:18 +0100 Message-Id: <20161216144821.5183-40-aarcange@redhat.com> In-Reply-To: <20161216144821.5183-1-aarcange@redhat.com> References: <20161216144821.5183-1-aarcange@redhat.com> Sender: owner-linux-mm@kvack.org List-ID: To: linux-mm@kvack.org, Andrew Morton Cc: Michael Rapoport , "Dr. David Alan Gilbert" , Mike Kravetz , Pavel Emelyanov , Hillf Danton From: Mike Rapoport With future addition of event tests, copy_page will be called with different userfault file descriptors Signed-off-by: Mike Rapoport Signed-off-by: Andrea Arcangeli --- tools/testing/selftests/vm/userfaultfd.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/tools/testing/selftests/vm/userfaultfd.c b/tools/testing/selftests/vm/userfaultfd.c index 75540e7..c79c372 100644 --- a/tools/testing/selftests/vm/userfaultfd.c +++ b/tools/testing/selftests/vm/userfaultfd.c @@ -317,7 +317,7 @@ static void *locking_thread(void *arg) return NULL; } -static int copy_page(unsigned long offset) +static int copy_page(int ufd, unsigned long offset) { struct uffdio_copy uffdio_copy; @@ -329,7 +329,7 @@ static int copy_page(unsigned long offset) uffdio_copy.len = page_size; uffdio_copy.mode = 0; uffdio_copy.copy = 0; - if (ioctl(uffd, UFFDIO_COPY, &uffdio_copy)) { + if (ioctl(ufd, UFFDIO_COPY, &uffdio_copy)) { /* real retval in ufdio_copy.copy */ if (uffdio_copy.copy != -EEXIST) fprintf(stderr, "UFFDIO_COPY error %Ld\n", @@ -386,7 +386,7 @@ static void *uffd_poll_thread(void *arg) offset = (char *)(unsigned long)msg.arg.pagefault.address - area_dst; offset &= ~(page_size-1); - if (copy_page(offset)) + if (copy_page(uffd, offset)) userfaults++; } return (void *)userfaults; @@ -424,7 +424,7 @@ static void *uffd_read_thread(void *arg) offset = (char *)(unsigned long)msg.arg.pagefault.address - area_dst; offset &= ~(page_size-1); - if (copy_page(offset)) + if (copy_page(uffd, offset)) (*this_cpu_userfaults)++; } return (void *)NULL; @@ -438,7 +438,7 @@ static void *background_thread(void *arg) for (page_nr = cpu * nr_pages_per_cpu; page_nr < (cpu+1) * nr_pages_per_cpu; page_nr++) - copy_page(page_nr * page_size); + copy_page(uffd, page_nr * page_size); return NULL; } -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org