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Date: Fri, 17 Aug 2012 15:43:32 +0200 From: Richard Weinberger <richard@....at> To: artem.bityutskiy@...ux.intel.com Cc: nyoushchenko@...sta.com, linux-mtd@...ts.infradead.org, linux-kernel@...r.kernel.org, adrian.hunter@...el.com, Heinz.Egger@...utronix.de, thomas.wucher@...utronix.de, shmulik.ladkani@...il.com, tglx@...utronix.de, tim.bird@...sony.com, Marius.Mazarel@...l.ro Subject: Re: UBI fastmap updates Am Fri, 17 Aug 2012 16:41:24 +0300 schrieb Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>: > On Fri, 2012-08-17 at 15:33 +0200, Richard Weinberger wrote: > > Am Fri, 17 Aug 2012 16:11:55 +0300 > > schrieb Artem Bityutskiy <artem.bityutskiy@...ux.intel.com>: > > > We do not do anything like this in UBI because UBI does not need > > > this, it does not have any complex data structures on the media. > > > > > > With fastmap - I am unsure. I think it is not a problem, because > > > probably you never append more data, you just re-write everything, > > > right? > > > > Yep, the on-flash fastmap is immutable. > > Here the question is - if you have PEB containing fastmap data, > half-filled. Will you ever add more data there to the empty space in > the PEB or not? > No, data is never added to a half-filled PEB. Fastmap does not share PEBs with other sub-systems by design. Thanks, //richard -- 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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