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tools/memory-model: Add documentation of new litmus test 

The litmus-tests/README file lacks any mention of the new litmus test
ISA2+pooncelock+pooncelock+pombonce.litmus.  This commit therefore
adds a description of this test.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: akiyks@gmail.com
Cc: boqun.feng@gmail.com
Cc: dhowells@redhat.com
Cc: j.alglave@ucl.ac.uk
Cc: linux-arch@vger.kernel.org
Cc: luc.maranget@inria.fr
Cc: npiggin@gmail.com
Cc: parri.andrea@gmail.com
Cc: will.deacon@arm.com
Link: http://lkml.kernel.org/r/1520443660-16858-3-git-send-email-paulmck@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Paul E. McKenney 2018-03-07 09:27:39 -08:00 committed by Ingo Molnar
parent d095c12c53
commit ff1fe5e079
1 changed files with 6 additions and 0 deletions
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6
tools/memory-model/litmus-tests/README
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@ -32,6 +32,12 @@ IRIW+poonceonces+OnceOnce.litmus
order of a pair of writes, where each write is to a different
variable by a different process?
ISA2+pooncelock+pooncelock+pombonce.litmus
Tests whether the ordering provided by a lock-protected S
litmus test is visible to an external process whose accesses are
separated by smp_mb(). This addition of an external process to
S is otherwise known as ISA2.
ISA2+poonceonces.litmus
As below, but with store-release replaced with WRITE_ONCE()
and load-acquire replaced with READ_ONCE().