Re: [PATCH 10/20] hpfs: replace BKL with a global mutex

From: Andi Kleen
Date: Tue Jan 25 2011 - 19:19:10 EST

Arnd Bergmann <arnd@xxxxxxxx> writes:

> This removes the BKL in hpfs in a rather awful
> way, by replacing it with a mutex that basically
> serializes the entire file system.

I don't think that's a very good idea, there's danger
of holding it over IO and that would be really bad (as in like MINIX[1])

It would be better to do it the i810 way and check for the number of
CPUs at module init time and refuse to run if it's > 1


[1] showing my age
Andi Kleen
Intel Open Source Technology Center
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