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Go Back   Linux Archive > Redhat > Device-mapper Development

 
 
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Old 05-19-2012, 12:59 AM
Alasdair G Kergon
 
Default Make generic_make_request handle arbitrarily large bios

On Fri, May 18, 2012 at 10:52:16AM -0700, Tejun Heo wrote:
> Does this by any chance allow killing ->merge_bvec_fn()?

merge_bvec also has an impact on efficiency.

Why create a too-large bio in the first place if it's only going to have to
get split up again?

If a change like this goes in, the various trade-offs should be re-examined.

Alasdair

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