Re: [v3,11/41] mips: reuse asm-generic/barrier.h
From: Peter Zijlstra <peterz@infradead.org>
Date: 2016-01-26 10:32:38
Also in:
linux-arch, linux-arm-kernel, linux-mips, linux-s390, linux-sh, linux-um, linuxppc-dev, lkml, sparclinux
Subsystem:
documentation, linux kernel memory consistency model (lkmm), the rest · Maintainers:
Jonathan Corbet, Alan Stern, Andrea Parri, Will Deacon, Peter Zijlstra, Boqun Feng, Nicholas Piggin, David Howells, Jade Alglave, Luc Maranget, "Paul E. McKenney", Linus Torvalds
Possibly related (same subject, not in this thread)
- 2016-01-29 · Re: [v3,11/41] mips: reuse asm-generic/barrier.h · Maciej W. Rozycki <hidden>
- 2016-01-28 · Re: [v3,11/41] mips: reuse asm-generic/barrier.h · Leonid Yegoshin <hidden>
- 2016-01-28 · Re: [v3,11/41] mips: reuse asm-generic/barrier.h · Leonid Yegoshin <hidden>
- 2016-01-28 · Re: [v3,11/41] mips: reuse asm-generic/barrier.h · Paul E. McKenney <hidden>
- 2016-01-27 · Re: [v3,11/41] mips: reuse asm-generic/barrier.h · Paul E. McKenney <hidden>
On Tue, Jan 26, 2016 at 11:24:02AM +0100, Peter Zijlstra wrote:
Yeah, this goes under the header: memory-barriers.txt is _NOT_ a specification (I seem to keep repeating this).
Do we want this ? --- Documentation/memory-barriers.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index a61be39c7b51..433326ebdc26 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt@@ -1,3 +1,4 @@ + ============================ LINUX KERNEL MEMORY BARRIERS ============================
@@ -5,6 +6,22 @@ By: David Howells <dhowells@redhat.com> Paul E. McKenney <paulmck@linux.vnet.ibm.com> +========== +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. + +I repeat, this document is not a specification of what Linux expects from +hardware. + +===== +INDEX +===== + Contents: (*) Abstract memory access model.