From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Cc: mingo@kernel.org, stern@rowland.harvard.edu,
parri.andrea@gmail.com, will.deacon@arm.com,
peterz@infradead.org, boqun.feng@gmail.com, npiggin@gmail.com,
dhowells@redhat.com, j.alglave@ucl.ac.uk, luc.maranget@inria.fr,
akiyks@gmail.com, "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Subject: [PATCH tools/memory-model 14/17] tools/memory-order: Improve key for SELF and SV
Date: Mon, 16 Apr 2018 09:12:42 -0700 [thread overview]
Message-ID: <1523895165-17576-14-git-send-email-paulmck@linux.vnet.ibm.com> (raw)
In-Reply-To: <20180416161209.GA6895@linux.vnet.ibm.com>
The key for "SELF" was missing completely and the key for "SV" was
a bit obtuse. This commit therefore adds a key for "SELF" and improves
the one for "SV".
Reported-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
---
tools/memory-model/Documentation/cheatsheet.txt | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/tools/memory-model/Documentation/cheatsheet.txt b/tools/memory-model/Documentation/cheatsheet.txt
index c0eafdaddfa4..d502993ac7d2 100644
--- a/tools/memory-model/Documentation/cheatsheet.txt
+++ b/tools/memory-model/Documentation/cheatsheet.txt
@@ -26,4 +26,5 @@ Key: C: Ordering is cumulative
DR: Dependent read (address dependency)
DW: Dependent write (address, data, or control dependency)
RMW: Atomic read-modify-write operation
- SV Same-variable access
+ SELF: Orders self, as opposed to accesses both before and after
+ SV: Orders later accesses to the same variable
--
2.5.2
next prev parent reply other threads:[~2018-04-16 16:12 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-16 16:12 [PATCH tools/memory-model 0/17] Memory-model changes Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 01/17] tools/memory-model: Rename link and rcu-path to rcu-link and rb Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 02/17] tools/memory-model: Redefine rb in terms of rcu-fence Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 03/17] docs/memory-barriers.txt: Fix broken DMA vs MMIO ordering example Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 04/17] locking: Document the semantics of spin_is_locked() Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 05/17] arm64: Remove smp_mb() from arch_spin_is_locked() Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 06/17] locking: Clean up comment and #ifndef for {,queued_}spin_is_locked() Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 07/17] kokr/doc: READ_ONCE() now implies smp_barrier_depends() Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 08/17] kokr/doc: De-emphasize smp_read_barrier_depends Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 09/17] kokr/Documentation/memory-barriers.txt: Cross-reference "tools/memory-model/" Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 10/17] kokr/memory-barriers: Fix description of data dependency barriers Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 11/17] kokr/locking/memory-barriers: De-emphasize smp_read_barrier_depends() some more Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 12/17] tools/memory-model: Update required version of herdtools7 Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 13/17] memory-model: Fix cheat sheet typo Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney [this message]
2018-04-16 16:12 ` [PATCH tools/memory-model 14/17] tools/memory-order: Improve key for SELF and SV Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 15/17] tools/memory-order: smp_mb__after_atomic() orders later RMW operations Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 16/17] tools/memory-model: Model 'smp_store_mb()' Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
2018-04-16 16:12 ` [PATCH tools/memory-model 17/17] tools/memory-model: Fix coding style in 'linux-kernel.def' Paul E. McKenney
2018-04-16 16:12 ` Paul E. McKenney
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