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* Linus Torvalds <torvalds@osdl.org> wrote: > > I think this question is orthogonal to my concern about follow_page. > > The follow_page issue should be fixable by just marking the _page_ > dirty inside the ptrace routines. I think we do that anyway (or we'd > already be buggy wrt perfectly normal writes). the follow_page() issue could be handled like the 4/4 patch does it: a repeat-until loop of manual-fault + lookup-pte (we break out of the loop if the manual fault fails or when the lookup is successful). The race window is so small that the repeating solution is i think far superior to artificially dirtying the pte. Ingo - 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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