Re: [PATCH 2/2] mm/vma: Introduce VM_ACCESS_FLAGS

2020-03-05 Thread Vlastimil Babka
ts.infradead.org > Cc: linuxppc-...@lists.ozlabs.org > Cc: linux-s...@vger.kernel.org > Cc: de...@driverdev.osuosl.org > Cc: linux...@kvack.org > Cc: linux-ker...@vger.kernel.org > Signed-off-by: Anshuman Khandual Reviewed-by: Vlastimil Babka Thanks.

Re: [RFC 2/3] mm/vma: Introduce VM_ACCESS_FLAGS

2020-03-03 Thread Vlastimil Babka
On 3/2/20 7:47 AM, Anshuman Khandual wrote: > There are many places where all basic VMA access flags (read, write, exec) > are initialized or checked against as a group. One such example is during > page fault. Existing vma_is_accessible() wrapper already creates the notion > of VMA accessibility

Re: [PATCH] driver : staging : ion: optimization for decreasing memory fragmentaion

2019-03-20 Thread Vlastimil Babka
You should have CC'd the ION maintainers/lists per ./scripts/get_maintainer.pl - CCing now. On 3/14/19 12:06 PM, Zhaoyang Huang wrote: > From: Zhaoyang Huang > > Two action for this patch: > 1. set a batch size for system heap's shrinker, which can have it buffer > reasonable page blocks in

Re: [PATCH v5 1/2] memory_hotplug: Free pages as higher order

2018-10-11 Thread Vlastimil Babka
On 10/10/18 6:56 PM, Arun KS wrote: > On 2018-10-10 21:00, Vlastimil Babka wrote: >> On 10/5/18 10:10 AM, Arun KS wrote: >>> When free pages are done with higher order, time spend on >>> coalescing pages by buddy allocator can be reduced. With >>> section size o

Re: [PATCH v5 2/2] mm/page_alloc: remove software prefetching in __free_pages_core

2018-10-10 Thread Vlastimil Babka
with fixed stride is a trivial case for hw prefetcher. Acked-by: Vlastimil Babka > --- > mm/page_alloc.c | 6 +- > 1 file changed, 1 insertion(+), 5 deletions(-) > > diff --git a/mm/page_alloc.c b/mm/page_alloc.c > index 7ab5274..90db431 100644 > --- a/mm/page_alloc.

Re: [PATCH v5 1/2] memory_hotplug: Free pages as higher order

2018-10-10 Thread Vlastimil Babka
On 10/5/18 10:10 AM, Arun KS wrote: > When free pages are done with higher order, time spend on > coalescing pages by buddy allocator can be reduced. With > section size of 256MB, hot add latency of a single section > shows improvement from 50-60 ms to less than 1 ms, hence > improving the hot add

Re: [PATCH v2] memory_hotplug: Free pages as higher order

2018-09-25 Thread Vlastimil Babka
On 9/25/18 7:42 AM, Arun KS wrote: > When free pages are done with higher order, time spend on > coalescing pages by buddy allocator can be reduced. With > section size of 256MB, hot add latency of a single section > shows improvement from 50-60 ms to less than 1 ms, hence > improving the hot add

Re: Do Qualcomm drivers use DMA buffers for request_firmware_into_buf()?

2018-06-08 Thread Vlastimil Babka
On 06/07/2018 06:33 PM, Greg Kroah-Hartman wrote: > On Thu, Jun 07, 2018 at 06:23:01PM +0200, Ard Biesheuvel wrote: >> On 7 June 2018 at 18:18, Bjorn Andersson wrote: >>> On Wed 06 Jun 13:32 PDT 2018, Luis R. Rodriguez wrote: >>> On Fri, Jun 01, 2018 at 09:23:46PM +0200, Luis R. Rodriguez