Commit f36fe1e7 authored by Paul E. McKenney's avatar Paul E. McKenney
Browse files

documentation: Transitivity is not cumulativity 



The "transitivity" section mentions cumulativity in a potentially
confusing way.  Contrary to the current wording, cumulativity is
not transitivity, but rather a hardware discipline that can be used
to implement transitivity on ARM and PowerPC CPUs.  This commit
therefore deletes the mention of cumulativity.

Reported-by: default avatarLuc Maranget <luc.maranget@inria.fr>
Signed-off-by: default avatarPaul E. McKenney <paulmck@linux.vnet.ibm.com>
parent 37ef0341

Documentation/memory-barriers.txt

+1 −1
Original line number Original line Diff line number Diff line
@@ -1270,7 +1270,7 @@ TRANSITIVITY 




Transitivity is a deeply intuitive notion about ordering that is not

Transitivity is a deeply intuitive notion about ordering that is not

always provided by real computer systems.  The following example

always provided by real computer systems.  The following example

demonstrates transitivity (also called "cumulativity"):

demonstrates transitivity:





	CPU 1			CPU 2			CPU 3

	CPU 1			CPU 2			CPU 3

	=======================	=======================	=======================

	=======================	=======================	=======================