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| author | Andrea Parri <parri.andrea@gmail.com> | 2018-02-20 15:25:07 -0800 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-02-21 09:58:14 +0100 |
| commit | 621df431b0ac931e318679f54047c47eb23cfdd2 (patch) | |
| tree | d0166ef5d4ae670d8f5b4941a664ad2624d3ce28 /Documentation/memory-barriers.txt | |
| parent | 65b65f8e8b941785b0a08cf24ffd7084c8df327c (diff) | |
| download | lwn-621df431b0ac931e318679f54047c47eb23cfdd2.tar.gz lwn-621df431b0ac931e318679f54047c47eb23cfdd2.zip | |
Documentation/memory-barriers.txt: Cross-reference "tools/memory-model/"
A memory consistency model is now available for the Linux kernel [1],
which "can (roughly speaking) be thought of as an automated version of
memory-barriers.txt" and which is (in turn) "accompanied by extensive
documentation on its use and its design".
Inform the (occasional) reader of memory-barriers.txt of these
developments.
[1] https://marc.info/?l=linux-kernel&m=151687290114799&w=2
Co-developed-by: Andrea Parri <parri.andrea@gmail.com>
Co-developed-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Andrea Parri <parri.andrea@gmail.com>
Signed-off-by: Akira Yokosawa <akiyks@gmail.com>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
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: nborisov@suse.com
Cc: npiggin@gmail.com
Cc: stern@rowland.harvard.edu
Cc: will.deacon@arm.com
Link: http://lkml.kernel.org/r/1519169112-20593-7-git-send-email-paulmck@linux.vnet.ibm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Documentation/memory-barriers.txt')
| -rw-r--r-- | Documentation/memory-barriers.txt | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index a863009849a3..a37d3aff3e73 100644 --- a/Documentation/memory-barriers.txt +++ b/Documentation/memory-barriers.txt @@ -14,7 +14,11 @@ DISCLAIMER This document is not a specification; it is intentionally (for the sake of brevity) and unintentionally (due to being human) incomplete. This document is meant as a guide to using the various memory barriers provided by Linux, but -in case of any doubt (and there are many) please ask. +in case of any doubt (and there are many) please ask. Some doubts may be +resolved by referring to the formal memory consistency model and related +documentation at tools/memory-model/. Nevertheless, even this memory +model should be viewed as the collective opinion of its maintainers rather +than as an infallible oracle. To repeat, this document is not a specification of what Linux expects from hardware. |