Re: [PATCH v4 0/3] sparse_init rewrite

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Hi Andrew,

On 07/09/18 at 02:29pm, Andrew Morton wrote:
> On Mon,  9 Jul 2018 13:53:09 -0400 Pavel Tatashin <pasha.tatashin@xxxxxxxxxx> wrote:
> > For the ease of review, I split this work so the first patch only adds new
> > interfaces, the second patch enables them, and removes the old ones.
> 
> This clashes pretty significantly with patches from Baoquan and Oscar:
> 
> mm-sparse-make-sparse_init_one_section-void-and-remove-check.patch
> mm-sparse-make-sparse_init_one_section-void-and-remove-check-fix.patch
> mm-sparse-make-sparse_init_one_section-void-and-remove-check-fix-2.patch
> mm-sparse-add-a-static-variable-nr_present_sections.patch
> mm-sparsemem-defer-the-ms-section_mem_map-clearing.patch
> mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap.patch

> Is there duplication of intent here?  Any thoughts on the
> prioritization of these efforts?

The final version of my patches was posted here:
http://lkml.kernel.org/r/20180628062857.29658-1-bhe@xxxxxxxxxx

Currently, only the first three patches are merged. 

mm-sparse-add-a-static-variable-nr_present_sections.patch
mm-sparsemem-defer-the-ms-section_mem_map-clearing.patch
mm-sparse-add-a-new-parameter-data_unit_size-for-alloc_usemap_and_memmap.patch

They are preparation patches, and the 4th patch is the formal fix patch:
[PATCH v6 4/5] mm/sparse: Optimize memmap allocation during sparse_init()

The 5th patch is a clean up patch according to reviewer's suggestion:
[PATCH v6 5/5] mm/sparse: Remove CONFIG_SPARSEMEM_ALLOC_MEM_MAP_TOGETHER

I think Pavel's patches sits on top of all above five patches.

Thanks
Baoquan




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