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Re: [patch] only-one-cache-query [was Re: [patch] arca-vm-2.2.5]

To: "Stephen C. Tweedie" <sct@redhat.com>
Subject: Re: [patch] only-one-cache-query [was Re: [patch] arca-vm-2.2.5]
From: Andrea Arcangeli <andrea@e-mind.com>
Date: Wed, 7 Apr 1999 15:49:34 +0200 (CEST)
cc: Mark Hemment <markhe@sco.COM>, Chuck Lever <cel@monkey.org>, linux-kernel@vger.rutgers.edu, linux-mm@kvack.org, Linus Torvalds <torvalds@transmeta.com>
In-Reply-To: <14091.22597.198249.259683@dukat.scot.redhat.com>
Sender: owner-linux-mm@kvack.org

On Wed, 7 Apr 1999, Stephen C. Tweedie wrote:

>At that point, we will need to drop any spinlocks we hold before calling
>get_free_page(), because the scheduler will only drop the global lock
>automatically if we sleep and we can't sleep with any other locks held.
>Now, even if we _don't_ sleep, another CPU can get in to mess with the
>page cache while we are doing allocation stuff.

Yes, agreed.

Andrea Arcangeli

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References:
- Re: [patch] only-one-cache-query [was Re: [patch] arca-vm-2.2.5]
  - From: "Stephen C. Tweedie" <sct@redhat.com>

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