From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161037AbWIGQmB (ORCPT ); Thu, 7 Sep 2006 12:42:01 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161040AbWIGQmB (ORCPT ); Thu, 7 Sep 2006 12:42:01 -0400 Received: from mx1.redhat.com ([66.187.233.31]:52667 "EHLO mx1.redhat.com") by vger.kernel.org with ESMTP id S1161037AbWIGQmA (ORCPT ); Thu, 7 Sep 2006 12:42:00 -0400 From: David Howells Subject: [PATCH] NOMMU: Document NOMMU support for futexes Date: Thu, 07 Sep 2006 17:41:24 +0100 To: torvalds@osdl.org, akpm@osdl.org, mingo@elte.hu, benh@kernel.crashing.org Cc: linux-kernel@vger.kernel.org, uclinux-dev@uclinux.org, dhowells@redhat.com Message-Id: <20060907164124.19588.23169.stgit@warthog.cambridge.redhat.com> Content-Type: text/plain; charset=utf-8; format=fixed Content-Transfer-Encoding: 8bit User-Agent: StGIT/0.10 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org From: David Howells Document the fact that NOMMU now supports futexes. Signed-Off-By: David Howells --- Documentation/nommu-mmap.txt | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/Documentation/nommu-mmap.txt b/Documentation/nommu-mmap.txt index 4db7c18..7714f57 100644 --- a/Documentation/nommu-mmap.txt +++ b/Documentation/nommu-mmap.txt @@ -138,6 +138,16 @@ mode. The former through the usual mech on ramfs or tmpfs mounts. +======= +FUTEXES +======= + +Futexes are supported in NOMMU mode if the arch supports them. An error will +be given if an address passed to the futex system call lies outside the +mappings made by a process or if the mapping in which the address lies does not +support futexes (such as an I/O chardev mapping). + + ============= NO-MMU MREMAP =============