Messages in this thread | | | From | Bodo Eggert <> | Subject | Re: O_DIRECT question | Date | Sun, 14 Jan 2007 20:39:50 +0100 |
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Bill Davidsen <davidsen@tmr.com> wrote:
> My point is, that there is code to handle sparse data now, without > O_DIRECT involved, and if O_DIRECT bypasses that, it's not a problem > with the idea of O_DIRECT, the kernel has a security problem.
The idea of O_DIRECT is to bypass the pagecache, and the pagecache is what provides the security against reading someone else's data using sparse files or partial-block-IO. - 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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