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On 5/3/05, Andy Isaacson <adi@hexapodia.org> wrote: > Rather than replacing the fully-registered pages with pages of zeros, > you could simply unmap them. I don't like this option. It is nearly free to map all of the pages to the zero-page. You never have to allocate a page if the user never writes to it. Buf if you unmap the page, there could be issues. The memory region could be on the stack, or malloc'ed. In these cases, the child should be able to return from the function, or free the memory without setting a timebomb. -- Bill Jordan InfiniCon Systems - 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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