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| author | David Howells | 2010-03-24 10:43:00 +0100 |
|---|---|---|
| committer | Linus Torvalds | 2010-03-25 00:31:22 +0100 |
| commit | 90fddabf5818367c6bd1fe1b256a10e01827862f (patch) | |
| tree | e90fd8f5e340be929f2cd53020b97d083397ef0f /Documentation/memory-barriers.txt | |
| parent | fs/partition/msdos: fix unusable extended partition for > 512B sector (diff) | |
| download | kernel-qcow2-linux-90fddabf5818367c6bd1fe1b256a10e01827862f.tar.gz kernel-qcow2-linux-90fddabf5818367c6bd1fe1b256a10e01827862f.tar.xz kernel-qcow2-linux-90fddabf5818367c6bd1fe1b256a10e01827862f.zip | |
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.txt | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/Documentation/memory-barriers.txt b/Documentation/memory-barriers.txt index 7f5809eddee6..631ad2f1b229 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 ========== |