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Re: CVS commit: src/sys/kern

On Mon, Mar 11, 2013 at 09:37:54PM +0000, Antti Kantee wrote:
> Module Name:  src
> Committed By: pooka
> Date:         Mon Mar 11 21:37:54 UTC 2013
> Modified Files:
>       src/sys/kern: subr_pool.c
> Log Message:
> In pool_cache_put_slow(), pool_get() can block (it does mutex_enter()),
> so we need to retry if curlwp took a context switch during the call.

I didn't think mutex_enter() blocked - isn't it a spinlock.
Which means that if things are going wrong they can go wrong
even if the mutex is available immediately.


David Laight:

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