From: "H. Peter Anvin" <hpa@zytor.com>
To: Andi Kleen <ak@suse.de>
Cc: Kanoj Sarcar <kanojsarcar@yahoo.com>,
Linux MM mailing list <linux-mm@kvack.org>
Subject: Re: More questions...
Date: Mon, 15 Oct 2001 15:31:51 -0700 [thread overview]
Message-ID: <3BCB63D7.2090703@zytor.com> (raw)
In-Reply-To: <20011016001533.A30579@gruyere.muc.suse.de>
Andi Kleen wrote:
> On Mon, Oct 15, 2001 at 03:11:44PM -0700, H. Peter Anvin wrote:
>
>>IWBNI it could be added, assuming it can be done without breaking existing
>>applications (perhaps a flag could be snuck in somewhere.) I can write
>>the code so that if the information is present, it uses it; otherwise the
>>worst that can happen is having to do the two-step NONE -> READ ->
>>READ|WRITE transition, as it currently is.
>>
>
> At least on linux si_errno on signals should be always 0. I doubt anything
> depends on that. I don't know if that is true on other operating systems
> however. Single Unix has nothing to say about it as far as I can see.
>
> You don't need a flag. Just use it when it is != 0.
>
That's a flag as far as I'm concerned... I can do an #ifdef __linux__ and
test the value of this field.
-hpa
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prev parent reply other threads:[~2001-10-15 22:31 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-15 21:46 H. Peter Anvin
2001-10-15 21:56 ` Kanoj Sarcar
2001-10-15 22:02 ` H. Peter Anvin
2001-10-15 22:08 ` Andi Kleen
2001-10-15 22:11 ` H. Peter Anvin
2001-10-15 22:15 ` Andi Kleen
2001-10-15 22:31 ` H. Peter Anvin [this message]
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