On 19-05-01 22:55:37, Dan Williams wrote:
> Prepare for hot{plug,remove} of sub-ranges of a section by tracking a
> section active bitmask, each bit representing 2MB (SECTION_SIZE (128M) /
> map_active bitmask length (64)). If it turns out that 2MB is too large
> of an active tracking granularity it is trivial to increase the size of
> the map_active bitmap.
>
> The implications of a partially populated section is that pfn_valid()
> needs to go beyond a valid_section() check and read the sub-section
> active ranges from the bitmask.
>
> Cc: Michal Hocko <[email protected]>
> Cc: Vlastimil Babka <[email protected]>
> Cc: Logan Gunthorpe <[email protected]>
> Tested-by: Jane Chu <[email protected]>
> Signed-off-by: Dan Williams <[email protected]>
Hi Dan,
I have sent comments to the previous version of this patch:
https://lore.kernel.org/lkml/ca+ck2bafncvyz956jptnq+aqhjs7uy1zqwfl8fsufwqodkx...@mail.gmail.com/
I think they still apply to this one.
Thank you,
Pasha
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