Messages in this thread |  | | | Date | Tue, 14 Sep 2004 19:36:11 -0700 | | From | William Lee Irwin III <> | | Subject | Re: [patch] sched: fix scheduling latencies for !PREEMPT kernels |
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On Tue, 2004-09-14 at 21:46, William Lee Irwin III wrote: >> I've not heard a peep about anyone trying to fix this. It should be >> killed off along with the rest, of course, but like I said before, it's >> the messiest, dirtiest, and ugliest code that's left to go through, >> which is why it's been left for last. e.g. driver ->ioctl() methods.
On Tue, Sep 14, 2004 at 10:00:44PM -0400, Lee Revell wrote: > Andrew tried to fix this a few times in 2.4 and it broke the FS in > subtle ways. Don't have an archive link but the message is > <20040712163141.31ef1ad6.akpm@osdl.org>. I asked Hans directly about it > and he said "balancing makes it hard, the fix is reiser4", see > <411925FA.2000303@namesys.com>.
I have neither of these locally. I suspect someone needs to care enough about the code for anything to happen soon. I suppose there are things that probably weren't tried, e.g. auditing to make sure dependencies on external synchronization are taken care of, removing implicit sleeping with the BKL held, then punt a private recursive spinlock in reiser3's direction. Not sure what went on, or if I want to get involved in this particular case.
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