Re: [discuss] Re: [PATCH] fs/compat.c: rwsem instead of BKL around ioctl32_hash_table

[Andi Kleen]

>     Andi> If you wanted to fix it properly better make it use RCU -
>     Andi> but it cannot work for the case of calling a compat handler.
> 
> Based on what you just wrote, it seems to me like RCU would actually
> work fine.  Is this wrong?

I meant it wouldn't work if you wanted to fix the module count assumption 
I described above. Fixing it would be probably a good idea because it's a 
bit of a nasty trap and kind of undocumented. But a global lock for
it is not the right way to do it, if anything you would use the
module counts. 

-Andi
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/