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From: David Howells <dhowells@warthog.cambridge.redhat.com>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] rw_semaphores, optimisations try #3
Date: Tue, 24 Apr 2001 17:37:13 +0100	[thread overview]
Message-ID: <7062.988130233@warthog.cambridge.redhat.com> (raw)
In-Reply-To: Your message of "Tue, 24 Apr 2001 08:40:58 PDT." <Pine.LNX.4.21.0104240838040.15642-100000@penguin.transmeta.com>

Linus Torvalds <torvalds@transmeta.com> wrote:
> - nobody will look up the list because we do have the spinlock at this
>   point, so a destroyed list doesn't actually _matter_ to anybody

I suppose that it'll be okay, provided I take care not to access a block for a
task I've just woken up.

> - list_remove_between() doesn't care about the integrity of the entries
>   it destroys. It only uses, and only changes, the entries that are still
>   on the list.

True. Okay, I can change it to use that.

David

      reply	other threads:[~2001-04-24 16:37 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-04-23 20:35 [PATCH] rw_semaphores, optimisations try #3 D.W.Howells
2001-04-23 21:34 ` Andrea Arcangeli
2001-04-24  4:56   ` rwsem benchmark [was Re: [PATCH] rw_semaphores, optimisations try #3] Andrea Arcangeli
2001-04-24  8:56     ` David Howells
2001-04-24  9:49       ` Andrea Arcangeli
2001-04-24 10:25         ` David Howells
2001-04-24 10:44           ` Andrea Arcangeli
2001-04-24 13:07             ` David Howells
2001-04-24 13:59               ` Andrea Arcangeli
2001-04-24 15:49             ` Linus Torvalds
2001-04-24 10:17       ` Andrea Arcangeli
2001-04-24 10:33         ` David Howells
2001-04-24 10:46           ` Andrea Arcangeli
2001-04-24 12:19             ` Andrea Arcangeli
2001-04-24 13:10               ` Andrea Arcangeli
2001-04-23 22:23 ` [PATCH] rw_semaphores, optimisations try #3 Linus Torvalds
2001-04-24 10:05   ` David Howells
2001-04-24 15:40     ` Linus Torvalds
2001-04-24 16:37       ` David Howells [this message]

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