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authorLinus Torvalds <torvalds@linux-foundation.org>2017-07-04 07:13:25 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2017-07-04 07:13:25 +0300
commit650fc870a2ef35b83397eebd35b8c8df211bff78 (patch)
tree14a293fa894d0f166aa60f1f5ca672a2bdb312c0 /Documentation/memory-barriers.txt
parentf4dd029ee0b92b77769a1ac6dce03e829e74763e (diff)
parent1cb566ba5634d7593b8b2a0a5c83f1c9e14b2e09 (diff)
downloadlinux-650fc870a2ef35b83397eebd35b8c8df211bff78.tar.xz
Merge tag 'docs-4.13' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet: "There has been a fair amount of activity in the docs tree this time around. Highlights include: - Conversion of a bunch of security documentation into RST - The conversion of the remaining DocBook templates by The Amazing Mauro Machine. We can now drop the entire DocBook build chain. - The usual collection of fixes and minor updates" * tag 'docs-4.13' of git://git.lwn.net/linux: (90 commits) scripts/kernel-doc: handle DECLARE_HASHTABLE Documentation: atomic_ops.txt is core-api/atomic_ops.rst Docs: clean up some DocBook loose ends Make the main documentation title less Geocities Docs: Use kernel-figure in vidioc-g-selection.rst Docs: fix table problems in ras.rst Docs: Fix breakage with Sphinx 1.5 and upper Docs: Include the Latex "ifthen" package doc/kokr/howto: Only send regression fixes after -rc1 docs-rst: fix broken links to dynamic-debug-howto in kernel-parameters doc: Document suitability of IBM Verse for kernel development Doc: fix a markup error in coding-style.rst docs: driver-api: i2c: remove some outdated information Documentation: DMA API: fix a typo in a function name Docs: Insert missing space to separate link from text doc/ko_KR/memory-barriers: Update control-dependencies example Documentation, kbuild: fix typo "minimun" -> "minimum" docs: Fix some formatting issues in request-key.rst doc: ReSTify keys-trusted-encrypted.txt doc: ReSTify keys-request-key.txt ...
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-rw-r--r--Documentation/memory-barriers.txt10
1 files changed, 5 insertions, 5 deletions
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index 9d5e0f853f08..c239a0cf4b1a 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -498,11 +498,11 @@ And a couple of implicit varieties:
This means that ACQUIRE acts as a minimal "acquire" operation and
RELEASE acts as a minimal "release" operation.
-A subset of the atomic operations described in atomic_ops.txt have ACQUIRE
-and RELEASE variants in addition to fully-ordered and relaxed (no barrier
-semantics) definitions. For compound atomics performing both a load and a
-store, ACQUIRE semantics apply only to the load and RELEASE semantics apply
-only to the store portion of the operation.
+A subset of the atomic operations described in core-api/atomic_ops.rst have
+ACQUIRE and RELEASE variants in addition to fully-ordered and relaxed (no
+barrier semantics) definitions. For compound atomics performing both a load
+and a store, ACQUIRE semantics apply only to the load and RELEASE semantics
+apply only to the store portion of the operation.
Memory barriers are only required where there's a possibility of interaction
between two CPUs or between a CPU and a device. If it can be guaranteed that