From: David Howells Add documentation about using shared memory in NOMMU mode. Signed-off-by: David Howells Signed-off-by: Andrew Morton --- Documentation/nommu-mmap.txt | 9 +++++++++ 1 file changed, 9 insertions(+) diff -puN Documentation/nommu-mmap.txt~nommu-add-docs-about-shared-memory Documentation/nommu-mmap.txt --- a/Documentation/nommu-mmap.txt~nommu-add-docs-about-shared-memory +++ a/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 ============= _