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On 11/20/06, Hugh Dickins <hugh@veritas.com> wrote: > On Mon, 20 Nov 2006, Francis Moreau wrote: > > > > I end up to see "open(B), close(B)" sequence when unmapping a part of > > the dumb device that I found strange. I think that "open(A') close(B)" > > can give more information to the driver and reflect that B is unmapped > > and A' is still mapped and becomes the new mapped area. > > But it's may be just me... > > I think I do now get your point. But your way round doesn't really my fault, I think I wasn't very clear when explaining myself > reflect what's going on either: the range A' was already open and now > you open it again. Until there's some driver actually needing more > sophisticated treatment, let's just leave it the simple way it is. Yes, I agree that both ways are not satisfacting. Maybe having vma->resize() method would have been better, I dunno. Anyways thanks for your answers. -- Francis - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.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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