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Date: Tue, 24 Jul 2012 22:26:16 +0100 From: Matthew Garrett <mjg@...hat.com> To: "Luck, Tony" <tony.luck@...el.com> Cc: Seiji Aguchi <seiji.aguchi@....com>, "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>, "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "mikew@...gle.com" <mikew@...gle.com>, "dle-develop@...ts.sourceforge.net" <dle-develop@...ts.sourceforge.net>, Satoru Moriya <satoru.moriya@....com>, "dzickus@...hat.com" <dzickus@...hat.com> Subject: Re: [RFC][PATCH v2 2/3] Hold multiple logs On Tue, Jul 24, 2012 at 09:12:25PM +0000, Luck, Tony wrote: > > I think we inevitably lose in that scenario. I'd need to verify, but my > > recollection is that overwriting existing variables may be equivalent to > > a delete/create cycle. > > This would mean that EFI really wants the OS to treat EFI variables as pretty much > exclusively read-only. Any activity which periodically updates a variable would > eventually run into problems in an EFI implementation that loses the old space > until a reset. Sure. I'll test with a few implementations and see what I can figure out. We may just want to reserve some space for pstore, then have delete in pstore simply map to hiding the entries rather than deleting them. -- Matthew Garrett | mjg59@...f.ucam.org -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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