>From linux-next, this patch is not in akpm branch.
According to discussion with Matthew offline, I will take the author of this
patch as Matthew was providing review for patch and suggesting a better
alternative.
Therefore, it will be much more easier or me to track this patch.
I will re-send t
On 11/9/20 3:32 PM, Matthew Wilcox wrote:
> On Thu, Nov 05, 2020 at 02:02:24PM +, Matthew Wilcox wrote:
>> On Thu, Nov 05, 2020 at 02:21:25PM +0100, Eric Dumazet wrote:
>>> On 11/5/20 5:21 AM, Matthew Wilcox (Oracle) wrote:
When the machine is under extreme memory pressure, the page_fra
On Thu, Nov 05, 2020 at 02:02:24PM +, Matthew Wilcox wrote:
> On Thu, Nov 05, 2020 at 02:21:25PM +0100, Eric Dumazet wrote:
> > On 11/5/20 5:21 AM, Matthew Wilcox (Oracle) wrote:
> > > When the machine is under extreme memory pressure, the page_frag allocator
> > > signals this to the networkin
On Thu, Nov 05, 2020 at 02:21:25PM +0100, Eric Dumazet wrote:
> On 11/5/20 5:21 AM, Matthew Wilcox (Oracle) wrote:
> > When the machine is under extreme memory pressure, the page_frag allocator
> > signals this to the networking stack by marking allocations with the
> > 'pfmemalloc' flag, which cau
On 11/5/20 5:21 AM, Matthew Wilcox (Oracle) wrote:
> When the machine is under extreme memory pressure, the page_frag allocator
> signals this to the networking stack by marking allocations with the
> 'pfmemalloc' flag, which causes non-essential packets to be dropped.
> Unfortunately, even afte
On 11/5/20 1:05 PM, Matthew Wilcox wrote:
On Thu, Nov 05, 2020 at 12:56:43PM +0100, Vlastimil Babka wrote:
> +++ b/mm/page_alloc.c
> @@ -5139,6 +5139,10 @@ void *page_frag_alloc(struct page_frag_cache *nc,
>if (!page_ref_sub_and_test(page, nc->pagecnt_bias))
>goto
On Thu, Nov 05, 2020 at 12:56:43PM +0100, Vlastimil Babka wrote:
> > +++ b/mm/page_alloc.c
> > @@ -5139,6 +5139,10 @@ void *page_frag_alloc(struct page_frag_cache *nc,
> > if (!page_ref_sub_and_test(page, nc->pagecnt_bias))
> > goto refill;
> > + if (nc->pf
On 11/5/20 5:21 AM, Matthew Wilcox (Oracle) wrote:
When the machine is under extreme memory pressure, the page_frag allocator
signals this to the networking stack by marking allocations with the
'pfmemalloc' flag, which causes non-essential packets to be dropped.
Unfortunately, even after the mac
When the machine is under extreme memory pressure, the page_frag allocator
signals this to the networking stack by marking allocations with the
'pfmemalloc' flag, which causes non-essential packets to be dropped.
Unfortunately, even after the machine recovers from the low memory
condition, the page
