git: kernel - Fix mbuf cluster statistics, fix type change bug
dillon at crater.dragonflybsd.org
Mon Oct 31 14:21:43 PDT 2011
Author: Matthew Dillon <dillon at apollo.backplane.com>
Date: Mon Oct 31 14:18:52 2011 -0700
kernel - Fix mbuf cluster statistics, fix type change bug
* The mbuf cluster statistics were not properly handling a sharecount race case,
causing the cluster count to continuously increase under heavy loads.
* atomic_set_short() was being improperly used to set m->m_type, causing the type field
to collect a logical OR of changeouts. Just set it normally.
* We don't need to use atomic ops for per-cpu stats updates.
Reported-by: Peter Avalos <peter at theshell.com>, "Samuel J. Greear" <sjg at evilcode.net>
Summary of changes:
sys/kern/uipc_mbuf.c | 63 +++++++++++++++++++++----------------------------
1 files changed, 27 insertions(+), 36 deletions(-)
DragonFly BSD source repository
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