| To: | Jun Sun <jsun@mvista.com> |
|---|---|
| Subject: | Re: [PATCH] disable interrupt for non-LLSC atomic set |
| From: | "Maciej W. Rozycki" <macro@ds2.pg.gda.pl> |
| Date: | Fri, 11 Jan 2002 18:40:07 +0100 (MET) |
| Cc: | ralf@oss.sgi.com, linux-mips@oss.sgi.com |
| In-reply-to: | <20020111092346.C32345@mvista.com> |
| Organization: | Technical University of Gdansk |
| Reply-to: | "Maciej W. Rozycki" <macro@ds2.pg.gda.pl> |
| Sender: | owner-linux-mips@oss.sgi.com |
On Fri, 11 Jan 2002, Jun Sun wrote: > > No need to -- no sane interrupt handler will ever access a user's atomic > > variable. > > OK, I have to reveal the secret desire :-). I have a patch > that makes MIPS kernel preemptible, and that unprotected operation > becomes very volunerable with the preemptible patch. I see. But why not to keep the MIPS_ATOMIC update together with the patch then? It doesn't look like such a patch is going into the official kernel anytime soon. -- + Maciej W. Rozycki, Technical University of Gdansk, Poland + +--------------------------------------------------------------+ + e-mail: macro@ds2.pg.gda.pl, PGP key available + |
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