Messages in this thread | | | Date | Fri, 1 Apr 2005 07:19:47 +0200 | From | Ingo Molnar <> | Subject | Re: [patch] Real-Time Preemption, -RT-2.6.12-rc1-V0.7.41-07 |
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* Steven Rostedt <rostedt@goodmis.org> wrote:
> > could you send me your latest patch for the bit-spin issue? My main > > issue was cleanliness, so that the patch doesnt get stuck in the -RT > > tree forever. > > I think that's the main problem. Without changing the design of the > ext3 system, I don't think there is a clean patch. The implementation > that I finally settled down with was to make the j_state and > j_journal_head locks two global locks. I had to make a few > modifications to some spots to avoid deadlocks, but this worked out > well. The problem I was worried about was this causing too much > overhead. So the ext3 buffers would have to contend with each other. I > don't have any tests to see if this had too much of an impact.
yeah - i think Andrew said that a global lock at that particular place might not be that much of an issue.
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