Re: [PATCH v2 00/13] arch, mm: deprecate DISCONTIGMEM

2020-11-16 Thread John Paul Adrian Glaubitz
Hi! On 11/1/20 6:04 PM, Mike Rapoport wrote: > It's been a while since DISCONTIGMEM is generally considered deprecated, > but it is still used by four architectures. This set replaces DISCONTIGMEM > with a different way to handle holes in the memory map and marks > DISCONTIGMEM configuration as BR

Re: [PATCH v2 00/13] arch, mm: deprecate DISCONTIGMEM

2020-11-16 Thread Mike Rapoport
Hi Adrian, On Tue, Nov 17, 2020 at 06:24:51AM +0100, John Paul Adrian Glaubitz wrote: > Hi! > > On 11/1/20 6:04 PM, Mike Rapoport wrote: > > It's been a while since DISCONTIGMEM is generally considered deprecated, > > but it is still used by four architectures. This set replaces DISCONTIGMEM > >

Re: [PATCH v2 10/13] arc: use FLATMEM with freeing of unused memory map instead of DISCONTIGMEM

2020-11-16 Thread Vineet Gupta
Hi Mike, On 11/1/20 9:04 AM, Mike Rapoport wrote: > From: Mike Rapoport > > Currently ARC uses DISCONTIGMEM to cope with sparse physical memory address > space on systems with 2 memory banks. While DISCONTIGMEM avoids wasting > memory on unpopulated memory map, it adds both memory and CPU overhea

Re: [PATCH v2 10/13] arc: use FLATMEM with freeing of unused memory map instead of DISCONTIGMEM

2020-11-16 Thread Mike Rapoport
On Tue, Nov 17, 2020 at 06:40:16AM +, Vineet Gupta wrote: > Hi Mike, > > On 11/1/20 9:04 AM, Mike Rapoport wrote: > > From: Mike Rapoport > > > > Currently ARC uses DISCONTIGMEM to cope with sparse physical memory address > > space on systems with 2 memory banks. While DISCONTIGMEM avoids was