Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-09-22 Thread Dan Williams
On Tue, Sep 8, 2020 at 3:46 AM David Hildenbrand wrote: > > On 22.08.20 01:21, Andrew Morton wrote: > > On Wed, 19 Aug 2020 18:53:57 -0700 Dan Williams > > wrote: > > > >>> I think I am missing some important pieces. Bear with me. > >> > >> No worries, also bear with me, I'm going to be offline

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-09-08 Thread David Hildenbrand
On 22.08.20 01:21, Andrew Morton wrote: > On Wed, 19 Aug 2020 18:53:57 -0700 Dan Williams > wrote: > >>> I think I am missing some important pieces. Bear with me. >> >> No worries, also bear with me, I'm going to be offline intermittently >> until at least mid-September. Hopefully Joao and/or Vi

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-21 Thread Leizhen (ThunderTown)
On 8/22/2020 7:21 AM, Andrew Morton wrote: > On Wed, 19 Aug 2020 18:53:57 -0700 Dan Williams > wrote: > >>> I think I am missing some important pieces. Bear with me. >> >> No worries, also bear with me, I'm going to be offline intermittently >> until at least mid-September. Hopefully Joao and

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-21 Thread Andrew Morton
On Wed, 19 Aug 2020 18:53:57 -0700 Dan Williams wrote: > > I think I am missing some important pieces. Bear with me. > > No worries, also bear with me, I'm going to be offline intermittently > until at least mid-September. Hopefully Joao and/or Vishal can jump in > on this discussion. Ordinari

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-21 Thread David Hildenbrand
> Am 21.08.2020 um 23:34 schrieb David Hildenbrand : > >  > >>> Am 21.08.2020 um 23:17 schrieb Dan Williams : >>> >>> On Fri, Aug 21, 2020 at 11:30 AM David Hildenbrand >>> wrote: >>> On 21.08.20 20:27, Dan Williams wrote: On Fri, Aug 21, 2020 at 3:15 AM David Hildenbrand wrot

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-21 Thread David Hildenbrand
> Am 21.08.2020 um 23:34 schrieb David Hildenbrand : > >  > >>> Am 21.08.2020 um 23:17 schrieb Dan Williams : >>> >>> On Fri, Aug 21, 2020 at 11:30 AM David Hildenbrand >>> wrote: >>> On 21.08.20 20:27, Dan Williams wrote: On Fri, Aug 21, 2020 at 3:15 AM David Hildenbrand wrot

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-21 Thread David Hildenbrand
On 21.08.20 23:33, David Hildenbrand wrote: > > >> Am 21.08.2020 um 23:17 schrieb Dan Williams : >> >> On Fri, Aug 21, 2020 at 11:30 AM David Hildenbrand wrote: >>> On 21.08.20 20:27, Dan Williams wrote: On Fri, Aug 21, 2020 at 3:15 AM David Hildenbrand wrote: > >>> >>> 1

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-21 Thread David Hildenbrand
> Am 21.08.2020 um 23:17 schrieb Dan Williams : > > On Fri, Aug 21, 2020 at 11:30 AM David Hildenbrand wrote: >> >>> On 21.08.20 20:27, Dan Williams wrote: >>> On Fri, Aug 21, 2020 at 3:15 AM David Hildenbrand wrote: >> >> 1. On x86-64, e820 indicates "soft-reserved" memory.

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-21 Thread Dan Williams
On Fri, Aug 21, 2020 at 11:30 AM David Hildenbrand wrote: > > On 21.08.20 20:27, Dan Williams wrote: > > On Fri, Aug 21, 2020 at 3:15 AM David Hildenbrand wrote: > >> > > 1. On x86-64, e820 indicates "soft-reserved" memory. This memory is not > automatically used in the buddy durin

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-21 Thread Dan Williams
On Fri, Aug 21, 2020 at 3:15 AM David Hildenbrand wrote: > > >> > >> 1. On x86-64, e820 indicates "soft-reserved" memory. This memory is not > >> automatically used in the buddy during boot, but remains untouched > >> (similar to pmem). But as it involves ACPI as well, it could also be > >> used o

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-21 Thread David Hildenbrand
On 21.08.20 20:27, Dan Williams wrote: > On Fri, Aug 21, 2020 at 3:15 AM David Hildenbrand wrote: >> 1. On x86-64, e820 indicates "soft-reserved" memory. This memory is not automatically used in the buddy during boot, but remains untouched (similar to pmem). But as it involves

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-21 Thread David Hildenbrand
>> >> 1. On x86-64, e820 indicates "soft-reserved" memory. This memory is not >> automatically used in the buddy during boot, but remains untouched >> (similar to pmem). But as it involves ACPI as well, it could also be >> used on arm64 (-e820), correct? > > Correct, arm64 also gets the EFI suppor

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-19 Thread Dan Williams
On Mon, Aug 3, 2020 at 12:48 AM David Hildenbrand wrote: > > [...] > > > Well, no v5.8-rc8 to line this up for v5.9, so next best is early > > integration into -mm before other collisions develop. > > > > Chatted with Justin offline and it currently appears that the missing > > numa information is

Re: [PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-03 Thread David Hildenbrand
[...] > Well, no v5.8-rc8 to line this up for v5.9, so next best is early > integration into -mm before other collisions develop. > > Chatted with Justin offline and it currently appears that the missing > numa information is the fault of the platform firmware to populate all > the necessary NUMA

[PATCH v4 00/23] device-dax: Support sub-dividing soft-reserved ranges

2020-08-02 Thread Dan Williams
Changes since v3 [1]: - Update x86 boot options documentation for 'nohmat' (Randy) - Fixup a handful of kbuild robot reports, the most significant being moving usage of PUD_SIZE and PMD_SIZE under #ifdef CONFIG_TRANSPARENT_HUGEPAGE protection. [1]: http://lore.kernel.org/r/159625229779.30402