Re: [patch] Add a writer prior lock methord for rwlock

[Rik van Riel]

On Wed, 4 Aug 2004, Liu Tao wrote:

> write_forcelock() should be used to avoid readers starve writers, or for
> writers to update shared data as far as possiable, since it prevents new
> readers acquire the lock while it's waiting for existing readers release
> their locks.

Looks like it should deadlock if you have multiple CPUs
trying to upgrade from a read lock to a write lock
simultaneously...

-- 
"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it." - Brian W. Kernighan

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