Re: Block-level CRC checks

Tom Lane wrote:
> Alvaro Herrera <alvherre@commandprompt.com> writes:

> > A buffer's io_in_progress lock protects the buffer's CRC.
> 
> Unfortunately, it doesn't.  See hint bits.

Hmm, so it seems we need to keep held of the bufferhead's spinlock while
calculating the checksum, just after resetting BM_JUST_DIRTIED.  Yuck.

-- 
Alvaro Herrera                                http://www.CommandPrompt.com/
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