From: Paul E. McKenney Date: Wed, 7 Mar 2018 17:27:39 +0000 (-0800) Subject: tools/memory-model: Add documentation of new litmus test X-Git-Tag: v4.17-rc1~180^2~13 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=ff1fe5e079730f138c98b268ce2e8482a1d954b4;p=linux.git 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 Signed-off-by: Paul E. McKenney Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner 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 --- diff --git a/tools/memory-model/litmus-tests/README b/tools/memory-model/litmus-tests/README index dca7d823ad57..04096fb8b8d9 100644 --- a/tools/memory-model/litmus-tests/README +++ b/tools/memory-model/litmus-tests/README @@ -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().