On 04/03/2017 04:28 PM, Vlastimil Babka wrote:
>>
>>
>> Seems it was broken by
>>
>> a8161d1ed6098506303c65b3701dedba876df42a
>> Author: Vlastimil Babka
>> Date: Thu Jul 28 15:49:19 2016 -0700
>>
>> mm, page_alloc: restructure direct compaction handling in slowpath
>
> Yeah, looks like pre
On 04/03/2017 02:38 PM, Andrey Ryabinin wrote:
>
>
> On 04/03/2017 03:37 PM, Andrey Ryabinin wrote:
>>
>>
>> On 04/03/2017 11:47 AM, Michal Hocko wrote:
>>> On Fri 31-03-17 10:00:30, Shakeel Butt wrote:
On Fri, Mar 31, 2017 at 8:30 AM, Andrey Ryabinin
wrote:
> zswap_frontswap_store
On Mon 03-04-17 16:14:51, Andrey Ryabinin wrote:
>
>
> On 04/03/2017 03:45 PM, Michal Hocko wrote:
> > On Mon 03-04-17 15:37:07, Andrey Ryabinin wrote:
> >>
> >>
> >> On 04/03/2017 11:47 AM, Michal Hocko wrote:
> >>> On Fri 31-03-17 10:00:30, Shakeel Butt wrote:
> On Fri, Mar 31, 2017 at 8:3
On 04/03/2017 03:45 PM, Michal Hocko wrote:
> On Mon 03-04-17 15:37:07, Andrey Ryabinin wrote:
>>
>>
>> On 04/03/2017 11:47 AM, Michal Hocko wrote:
>>> On Fri 31-03-17 10:00:30, Shakeel Butt wrote:
On Fri, Mar 31, 2017 at 8:30 AM, Andrey Ryabinin
wrote:
> zswap_frontswap_store() is
On Mon 03-04-17 15:37:07, Andrey Ryabinin wrote:
>
>
> On 04/03/2017 11:47 AM, Michal Hocko wrote:
> > On Fri 31-03-17 10:00:30, Shakeel Butt wrote:
> >> On Fri, Mar 31, 2017 at 8:30 AM, Andrey Ryabinin
> >> wrote:
> >>> zswap_frontswap_store() is called during memory reclaim from
> >>> __fronts
On 04/03/2017 03:37 PM, Andrey Ryabinin wrote:
>
>
> On 04/03/2017 11:47 AM, Michal Hocko wrote:
>> On Fri 31-03-17 10:00:30, Shakeel Butt wrote:
>>> On Fri, Mar 31, 2017 at 8:30 AM, Andrey Ryabinin
>>> wrote:
zswap_frontswap_store() is called during memory reclaim from
__frontswap_s
On 04/03/2017 11:47 AM, Michal Hocko wrote:
> On Fri 31-03-17 10:00:30, Shakeel Butt wrote:
>> On Fri, Mar 31, 2017 at 8:30 AM, Andrey Ryabinin
>> wrote:
>>> zswap_frontswap_store() is called during memory reclaim from
>>> __frontswap_store() from swap_writepage() from shrink_page_list().
>>> Th
On Mon 03-04-17 14:57:11, Andrey Ryabinin wrote:
> On 04/03/2017 11:47 AM, Michal Hocko wrote:
> > On Fri 31-03-17 10:00:30, Shakeel Butt wrote:
[...]
> >>> @@ -1017,9 +1018,7 @@ static int zswap_frontswap_store(unsigned type,
> >>> pgoff_t offset,
> >>>
> >>> /* store */
> >>> len
On 04/03/2017 11:47 AM, Michal Hocko wrote:
> On Fri 31-03-17 10:00:30, Shakeel Butt wrote:
>> On Fri, Mar 31, 2017 at 8:30 AM, Andrey Ryabinin
>> wrote:
>>> zswap_frontswap_store() is called during memory reclaim from
>>> __frontswap_store() from swap_writepage() from shrink_page_list().
>>> This
On Fri 31-03-17 10:00:30, Shakeel Butt wrote:
> On Fri, Mar 31, 2017 at 8:30 AM, Andrey Ryabinin
> wrote:
> > zswap_frontswap_store() is called during memory reclaim from
> > __frontswap_store() from swap_writepage() from shrink_page_list().
> > This may happen in NOFS context, thus zswap shouldn'
On Fri, Mar 31, 2017 at 8:30 AM, Andrey Ryabinin
wrote:
> zswap_frontswap_store() is called during memory reclaim from
> __frontswap_store() from swap_writepage() from shrink_page_list().
> This may happen in NOFS context, thus zswap shouldn't use __GFP_FS,
> otherwise we may renter into fs code a
zswap_frontswap_store() is called during memory reclaim from
__frontswap_store() from swap_writepage() from shrink_page_list().
This may happen in NOFS context, thus zswap shouldn't use __GFP_FS,
otherwise we may renter into fs code and deadlock.
zswap_frontswap_store() also shouldn't use __GFP_IO
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