From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jens Axboe <axboe@suse.de>
Subject: Re: Reuse of BIOs
Date: Thu, 8 Sep 2005 15:19:29 +0200
Message-ID: <20050908131922.GA6097@suse.de>
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To: David Howells <dhowells@redhat.com>
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On Thu, Sep 08 2005, David Howells wrote:
> 
> Hi Jens,
> 
> Is it possible to reuse a BIO once the callback on it has been invoked to
> indicate final completion? Or does it have to be released and another one
> allocated?

If you reuse it indefinitely, you violate the principles that make the
mempool work. So the answer is 'yes' if you only reuse it a little, 'no'
if you want to hang on to it forever.

-- 
Jens Axboe