From: David Howells <dhowells@redhat.com>
Date: Wed, 27 Sep 2006 08:50:21 +0000 (-0700)
Subject: [PATCH] NOMMU: Add docs about shared memory
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=0112c4c6461fed12ed9bcb249f967bc17a23f6c4;p=linux-beck.git

[PATCH] NOMMU: Add docs about shared memory

Add documentation about using shared memory in NOMMU mode.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/Documentation/nommu-mmap.txt b/Documentation/nommu-mmap.txt
index 3ce890664936..4db7c18bf68c 100644
--- a/Documentation/nommu-mmap.txt
+++ b/Documentation/nommu-mmap.txt
@@ -129,6 +129,15 @@ FURTHER NOTES ON NO-MMU MMAP
      with character device files, pipes, fifos and sockets.
 
 
+==========================
+INTERPROCESS SHARED MEMORY
+==========================
+
+Both SYSV IPC SHM shared memory and POSIX shared memory is supported in NOMMU
+mode.  The former through the usual mechanism, the latter through files created
+on ramfs or tmpfs mounts.
+
+
 =============
 NO-MMU MREMAP
 =============