Messages in this thread | | | Subject | Re: [PATCH v4 3/4] mm/sparse: Add a new parameter 'data_unit_size' for alloc_usemap_and_memmap | From | Dave Hansen <> | Date | Fri, 8 Jun 2018 07:20:47 -0700 |
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On 06/07/2018 11:27 PM, Baoquan He wrote: > In alloc_usemap_and_memmap(), it will call > sparse_early_usemaps_alloc_node() or sparse_early_mem_maps_alloc_node() > to allocate usemap and memmap for each node and install them into > usemap_map[] and map_map[]. Here we need pass in the number of present > sections on this node so that we can move pointer of usemap_map[] and > map_map[] to right position. > > How do think about above words?
But you're now passing in the size of the data structure. Why is that needed all of a sudden?
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