aboutsummaryrefslogtreecommitdiff
path: root/Documentation/memory-barriers.txt
diff options
context:
space:
mode:
authorDavid Howells <dhowells@redhat.com>2010-03-24 09:43:00 +0000
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-24 16:31:22 -0700
commit90fddabf5818367c6bd1fe1b256a10e01827862f (patch)
treee90fd8f5e340be929f2cd53020b97d083397ef0f /Documentation/memory-barriers.txt
parent8e0cc811e0f8029a7225372fb0951fab102c012f (diff)
downloadlinux-90fddabf5818367c6bd1fe1b256a10e01827862f.tar.gz
Document Linux's circular buffering capabilities
Document the circular buffering capabilities available in Linux. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Randy Dunlap <rdunlap@xenotime.net> Reviewed-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/memory-barriers.txt')
-rw-r--r--Documentation/memory-barriers.txt20
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt
index 7f5809eddee..631ad2f1b22 100644
--- a/Documentation/memory-barriers.txt
+++ b/Documentation/memory-barriers.txt
@@ -3,6 +3,7 @@
============================
By: David Howells <dhowells@redhat.com>
+ Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Contents:
@@ -60,6 +61,10 @@ Contents:
- And then there's the Alpha.
+ (*) Example uses.
+
+ - Circular buffers.
+
(*) References.
@@ -2226,6 +2231,21 @@ The Alpha defines the Linux kernel's memory barrier model.
See the subsection on "Cache Coherency" above.
+============
+EXAMPLE USES
+============
+
+CIRCULAR BUFFERS
+----------------
+
+Memory barriers can be used to implement circular buffering without the need
+of a lock to serialise the producer with the consumer. See:
+
+ Documentation/circular-buffers.txt
+
+for details.
+
+
==========
REFERENCES
==========