From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Rapoport Subject: [PATCH man-pages 1/5] ioctl_userfaultfd.2: update description of shared memory areas Date: Mon, 1 May 2017 08:43:15 +0300 Message-ID: <1493617399-20897-2-git-send-email-rppt@linux.vnet.ibm.com> References: <1493617399-20897-1-git-send-email-rppt@linux.vnet.ibm.com> Return-path: In-Reply-To: <1493617399-20897-1-git-send-email-rppt@linux.vnet.ibm.com> Sender: owner-linux-mm@kvack.org To: "Michael Kerrisk (man-pages)" Cc: Andrea Arcangeli , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-man@vger.kernel.org, Mike Rapoport List-Id: linux-man@vger.kernel.org Signed-off-by: Mike Rapoport --- man2/ioctl_userfaultfd.2 | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/man2/ioctl_userfaultfd.2 b/man2/ioctl_userfaultfd.2 index 889feb9..6edd396 100644 --- a/man2/ioctl_userfaultfd.2 +++ b/man2/ioctl_userfaultfd.2 @@ -181,8 +181,17 @@ virtual memory areas .TP .B UFFD_FEATURE_MISSING_SHMEM If this feature bit is set, -the kernel supports registering userfaultfd ranges on tmpfs -virtual memory areas +the kernel supports registering userfaultfd ranges on shared memory areas. +This includes all kernel shared memory APIs: +System V shared memory, +tmpfs, +/dev/zero, +.BR mmap(2) +with +.I MAP_SHARED +flag set, +.BR memfd_create (2), +etc. The returned .I ioctls -- 1.9.1 -- 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