Re: [RFC PATCH 00/13] Introduce first class virtual address spaces

2017-03-14 Thread Chris Metcalf
On 3/14/2017 12:12 PM, Till Smejkal wrote: On Mon, 13 Mar 2017, Andy Lutomirski wrote: On Mon, Mar 13, 2017 at 7:07 PM, Till Smejkal wrote: On Mon, 13 Mar 2017, Andy Lutomirski wrote: This sounds rather complicated. Getting TLB flushing right seems tricky. Why

Re: [RFC PATCH 00/13] Introduce first class virtual address spaces

2017-03-14 Thread Till Smejkal
On Tue, 14 Mar 2017, Chris Metcalf wrote: > On 3/14/2017 12:12 PM, Till Smejkal wrote: > > On Mon, 13 Mar 2017, Andy Lutomirski wrote: > > > On Mon, Mar 13, 2017 at 7:07 PM, Till Smejkal > > > wrote: > > > > On Mon, 13 Mar 2017, Andy Lutomirski wrote: > > > > > This

Re: [RFC PATCH 00/13] Introduce first class virtual address spaces

2017-03-14 Thread Till Smejkal
On Mon, 13 Mar 2017, Andy Lutomirski wrote: > On Mon, Mar 13, 2017 at 7:07 PM, Till Smejkal > wrote: > > On Mon, 13 Mar 2017, Andy Lutomirski wrote: > >> This sounds rather complicated. Getting TLB flushing right seems > >> tricky. Why not just map the same thing

Re: [RFC PATCH 07/13] kernel/fork: Split and export 'mm_alloc' and 'mm_init'

2017-03-14 Thread Till Smejkal
On Tue, 14 Mar 2017, David Laight wrote: > From: Linuxppc-dev Till Smejkal > > Sent: 13 March 2017 22:14 > > The only way until now to create a new memory map was via the exported > > function 'mm_alloc'. Unfortunately, this function not only allocates a new > > memory map, but also completely

Re: [RFC PATCH 00/13] Introduce first class virtual address spaces

2017-03-14 Thread Till Smejkal
On Mon, 13 Mar 2017, Andy Lutomirski wrote: > On Mon, Mar 13, 2017 at 3:14 PM, Till Smejkal > wrote: > > This patchset extends the kernel memory management subsystem with a new > > type of address spaces (called VAS) which can be created and destroyed > >

Re: [RFC PATCH 00/13] Introduce first class virtual address spaces

2017-03-14 Thread Andy Lutomirski
On Mon, Mar 13, 2017 at 7:07 PM, Till Smejkal wrote: > On Mon, 13 Mar 2017, Andy Lutomirski wrote: >> This sounds rather complicated. Getting TLB flushing right seems >> tricky. Why not just map the same thing into multiple mms? > > This is exactly what happens at

RE: [RFC PATCH 07/13] kernel/fork: Split and export 'mm_alloc' and 'mm_init'

2017-03-14 Thread David Laight
From: Linuxppc-dev Till Smejkal > Sent: 13 March 2017 22:14 > The only way until now to create a new memory map was via the exported > function 'mm_alloc'. Unfortunately, this function not only allocates a new > memory map, but also completely initializes it. However, with the > introduction of

Re: [PATCH] clocksource: add missing line break to error messages

2017-03-14 Thread Ben Dooks
On 09/03/17 09:47, Rafał Miłecki wrote: From: Rafał Miłecki Printing with pr_* functions requires adding line break manually. Signed-off-by: Rafał Miłecki I've had a quick look over and there are no obvious errors. I wonder if the of_iomap() and related