Messages in this thread | | | Subject | Re: read_proc issue | Date | Wed, 27 Feb 2002 21:42:04 +0000 (GMT) | From | Alan Cox <> |
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> I've encountered this problem before, too. What is the "One True Way" > to do this cleanly? In other words, if you want to do a calculation > once every time someone runs "cat /proc/foo", what is the cleanest way > to do that? The solution we came up with was to check the file offset > and only do the calculation if offset == 0, which seems pretty > hackish.
Another approach is to do the calculation open and remember it in per fd private data. You can recover that and free it on release. It could even be a buffer holding the actual "content" - 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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