From: David Howells Document the fact that NOMMU now supports futexes. Signed-off-by: David Howells Signed-off-by: Andrew Morton --- Documentation/nommu-mmap.txt | 10 ++++++++++ 1 files changed, 10 insertions(+) diff -puN Documentation/nommu-mmap.txt~nommu-make-futexes-work-under-nommu-conditions-doc Documentation/nommu-mmap.txt --- a/Documentation/nommu-mmap.txt~nommu-make-futexes-work-under-nommu-conditions-doc +++ a/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 ============= _