Re: inode->i_dirty_buffers redundant ?

[Marcelo Tosatti]

On Thu, 25 Jan 2001, Daniel Phillips wrote:

> "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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