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(parent: d7a68be) | patch
tty: Avoid false-sharing flip buffer ptrs
authorPeter Hurley <peter@hurleysoftware.com>
Sat, 15 Jun 2013 13:36:12 +0000 (09:36 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 23 Jul 2013 23:47:09 +0000 (16:47 -0700)
commit8c1fb49ba107c7db9441ef6ec0ab5830d112cc2a
treec4733126d13fdf57e10638c18da280c0e7e103actree | snapshot (tar.gz zip)
parentd7a68be4f265be10e24be931c257af30ca55566bcommit | diff
tty: Avoid false-sharing flip buffer ptrs

Separate the head and tail ptrs to avoid cache-line contention
(so called 'false-sharing') between concurrent threads.

Signed-off-by: Peter Hurley <peter@hurleysoftware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
include/linux/tty.h diff | blob | blame | history