git: bt(4): Sync with FreeBSD.

[Sascha Wildner]

commit cf5a2d8858313285c4fbe3ea5d711eb1b6f922a3
Author: Sascha Wildner <saw at online.de>
Date:   Thu Nov 29 18:20:48 2012 +0100

    bt(4): Sync with FreeBSD.
    
    Main change is making it MPSAFE.
    
    Taken-from: FreeBSD

Summary of changes:
 share/man/man4/bt.4            |   41 ++++---
 sys/dev/disk/buslogic/bt.c     |  280 +++++++++++++++++++++++-----------------
 sys/dev/disk/buslogic/bt_pci.c |   52 +++-----
 sys/dev/disk/buslogic/btreg.h  |   17 +--
 4 files changed, 214 insertions(+), 176 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/cf5a2d8858313285c4fbe3ea5d711eb1b6f922a3


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