[Tux3] Refactor filemap.c

[Daniel Phillips]

On Tuesday 16 December 2008 02:08, OGAWA Hirofumi wrote:
> > Instead of the loop over segs in tux3_get_block, we can just call with
> > max_segs = 1.  I don't think there is a case where ->get_block can
> > handle more than one extent.
> 
> Yes. However, we have 64 blocks limitation for one extent. So, caller
> may want to merge those to one extent. If get_segs merged those,
> get_block() will use max_segs=1 until it supports delayed write. 

Yes, get_segs should merge those, and the dwalk_pack loop should break
them up again, which will sometimes give a better packing.

Regards,

Daniel

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