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Date:      Thu, 11 Mar 2004 14:42:08 +0100
From:      des@des.no (Dag-Erling =?iso-8859-1?q?Sm=F8rgrav?=)
To:        jitendra pande <jpande_techinfo@yahoo.com>
Cc:        freebsd-arch@freebsd.org
Subject:   Re: How to use Kernel level mutex in FreeBSD 4.8
Message-ID:  <xzpy8q7wle7.fsf@dwp.des.no>
In-Reply-To: <20040311133210.53599.qmail@web42006.mail.yahoo.com> (jitendra pande's message of "Thu, 11 Mar 2004 05:32:10 -0800 (PST)")
References:  <20040311133210.53599.qmail@web42006.mail.yahoo.com>

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jitendra pande <jpande_techinfo@yahoo.com> writes:
> I am trying to use kernle level mutex in my driver for FreeBSD 4.8.
> I tried searching for kernel level mutex but couldn't find any
> information on the same.

The FreeBSD 4 kernel is single-threaded.  You don't need locking
except to protect against interrupts (see spl(9))

DES
--=20
Dag-Erling Sm=F8rgrav - des@des.no



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