Re: MM deadlock [was: Re: arca-vm-8...]
Savochkin Andrey Vladimirovich (saw@msu.ru)
Mon, 11 Jan 1999 17:11:38 +0300
On Sun, Jan 10, 1999 at 10:35:10AM -0800, Linus Torvalds wrote:
> The thing I want to make re-entrant is just semaphore accesses: at the
> point where we would otherwise deadlock on the writer semaphore it's much
> better to just allow nested writes. I suspect all filesystems can already
> handle nested writes - they are a lot easier to handle than truly
> concurrent ones.
You're an optimist, aren't you? :-)
In any case I've checked your recursive semaphore code on a news server
which reliably deadlocked with the previous kernels.
The code seems to work well.
Best wishes
Andrey V.
Savochkin
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