Re: block_cache

2008/8/20 Axel D=F6rfler <[email protected]>:
> "Salvatore Benedetto" <[email protected]> wrote:
>> In cache_block_delete, the mutex_lock it seems to be called
>> unconditionally.
>>
>> Under the assumption that two thread can call block_cache_delete()
>> on the very same cache object, it just will lead to a crash, as there
>> is
>> not check on sCache.Remove(cache). Actually, I just relaized that it
>> can crash sooner on block_cache_sync() if, after both thread have
>> entered
>> the function, one of them succefully delete the object before the
>> call.
>
> There is always only one owner of a block_cache - if it's called from
> more than one thread, something is broken, but it's not the
> block_cache. In the same way that bad things happen usually if you
> delete the same object twice.

Ok thanks! Sorry for the confusion.

Regards,
-- =

Salvatore Benedetto (a.k.a. emitrax)
Student of Computer Engineer
University of Pisa
www.haiku-os.it

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