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Open Source and information security mailing list archives
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Date: Wed, 21 Mar 2007 18:36:02 +1100 From: Nick Piggin <nickpiggin@...oo.com.au> To: Nick Piggin <nickpiggin@...oo.com.au> CC: William Lee Irwin III <wli@...omorphy.com>, Adam Litke <agl@...ibm.com>, Andrew Morton <akpm@...ux-foundation.org>, Arjan van de Ven <arjan@...radead.org>, Christoph Hellwig <hch@...radead.org>, Ken Chen <kenchen@...gle.com>, linux-mm@...ck.org, linux-kernel@...r.kernel.org, Linus Torvalds <torvalds@...ux-foundation.org> Subject: Re: [PATCH 1/7] Introduce the pagetable_operations and associated helper macros. Nick Piggin wrote: > Yeah you could, but it looks back to front to me. > > The VM tells the filesystem that the machine took a fault at virtual > address X, then the filesystem asks the VM what pgoff that is, then > tells the VM to install the corresponding page to vaddr X. > > With my ->fault, the VM asks the filesystem to give the page that > corresponds to vaddr X, then installs it into that vaddr. Err, sorry, that's what the current ->nopage does. It is then still up to the filesystem to do the vaddr to pgoff conversion. My fault patches of course just ask the filesystem for the page at a given pgoff. -- SUSE Labs, Novell Inc. Send instant messages to your online friends http://au.messenger.yahoo.com - 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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