From: "Stephen C. Tweedie" <sct@redhat.com>
To: James Simmons <jsimmons@edgeglobal.com>
Cc: "Stephen C. Tweedie" <sct@redhat.com>, linux-mm@kvack.org
Subject: Re: accel handling
Date: Mon, 30 Aug 1999 11:44:17 +0100 (BST) [thread overview]
Message-ID: <14282.24705.733807.970163@dukat.scot.redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.10.9908292111230.31607-100000@imperial.edgeglobal.com>
Hi,
On Sun, 29 Aug 1999 21:14:11 -0400 (EDT), James Simmons
<jsimmons@edgeglobal.com> said:
>> A combination of shared-memory spinlocks (for fast tight-loop locking)
>> and SysV semaphores (for a blocking lock if the lock is taken for too
>> long) can be combined to give a simple but very efficient locking engine
>> for this type of thing.
> Any docs on this stuff. How would I go about do this ? I really want to do
> this write.
There are spinlock primitives in linux/asm/spinlock.h, and the
underlying atomic bit operations are in linux/asm/bitops.h. man shmop
and man semop for information about SysV shared memory and semaphores.
--Stephen
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next prev parent reply other threads:[~1999-08-30 10:44 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-08-29 14:52 James Simmons
1999-08-29 16:14 ` Stephen C. Tweedie
1999-08-30 1:14 ` James Simmons
1999-08-30 10:44 ` Stephen C. Tweedie [this message]
1999-08-30 12:06 ` Marcus Sundberg
1999-08-30 14:18 ` Stephen C. Tweedie
1999-08-30 14:50 ` James Simmons
1999-08-30 15:52 ` Stephen C. Tweedie
1999-08-30 17:51 ` James Simmons
1999-08-30 20:27 ` Stephen C. Tweedie
1999-08-31 0:28 ` Vladimir Dergachev
1999-08-31 10:55 ` Marcus Sundberg
1999-08-31 12:49 ` Stephen C. Tweedie
1999-08-31 17:10 ` James Simmons
1999-08-31 18:44 ` Stephen C. Tweedie
1999-08-30 14:31 ` James Simmons
1999-08-30 18:51 ` Eric W. Biederman
1999-08-30 19:18 ` James Simmons
1999-08-30 21:39 ` Andreas Beck
1999-08-30 20:36 ` Stephen C. Tweedie
1999-08-29 14:57 James Simmons
1999-08-31 3:39 Jens Owen
1999-08-31 12:51 ` Stephen C. Tweedie
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