Re: [PATCH v2 3/3] mm/sparse: Optimize memmap allocation during sparse_init()

On 02/22/18 at 02:22pm, Dave Hansen wrote: > First of all, this is a much-improved changelog. Thanks for that! > > On 02/22/2018 01:11 AM, Baoquan He wrote: > > In sparse_init(), two temporary pointer arrays, usemap_map and map_map > > are allocated with the size of NR_MEM_SECTIONS. They are used

Re: [PATCH v2 3/3] mm/sparse: Optimize memmap allocation during sparse_init()

First of all, this is a much-improved changelog. Thanks for that! On 02/22/2018 01:11 AM, Baoquan He wrote: > In sparse_init(), two temporary pointer arrays, usemap_map and map_map > are allocated with the size of NR_MEM_SECTIONS. They are used to store > each memory section's usemap and mem map

Re: [PATCH v2 3/3] mm/sparse: Optimize memmap allocation during sparse_init()

Hi Pankaj, On 02/22/18 at 05:07am, Pankaj Gupta wrote: > > Hi Baoquan, > > > > > In sparse_init(), two temporary pointer arrays, usemap_map and map_map > > are allocated with the size of NR_MEM_SECTIONS. They are used to store > > each memory section's usemap and mem map if marked as present. W

Re: [PATCH v2 3/3] mm/sparse: Optimize memmap allocation during sparse_init()

Hi Baoquan, > > In sparse_init(), two temporary pointer arrays, usemap_map and map_map > are allocated with the size of NR_MEM_SECTIONS. They are used to store > each memory section's usemap and mem map if marked as present. With > the help of these two arrays, continuous memory chunk is allocat

[PATCH v2 3/3] mm/sparse: Optimize memmap allocation during sparse_init()

In sparse_init(), two temporary pointer arrays, usemap_map and map_map are allocated with the size of NR_MEM_SECTIONS. They are used to store each memory section's usemap and mem map if marked as present. With the help of these two arrays, continuous memory chunk is allocated for usemap and memmap