> "Stephen C. Tweedie" wrote:
> > We also maintain the
> > per-page buffer lists as caches of the virtual-to-physical mapping to
> > avoid redundant bmap()ping.
>
> Could you clarify that one, please?
Daniel,
With "physical mapping" Stephen means on-disk block number.
If the buffer(s) for a page are mapped with valid information (ie
BH_Mapped) we avoid calling get_block().
See?
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