Re: [PATCH] mmc: card: don't use PF_MEMALLOC
From: Martin Kepplinger
Date: Wed Mar 16 2016 - 11:09:06 EST
Am 2016-03-16 um 15:41 schrieb Jens Axboe:
> On 03/16/2016 04:43 AM, Martin Kepplinger wrote:
>> PF_MEMALLOC is assigned to processes by mm. If drivers prevent memory
>> reclaim and mm is not in control, strange hang-up or OOM Killer
>> could happen.
>> Signed-off-by: Martin Kepplinger <martink@xxxxxxxxx>
>> I use MMC cards with this change perfectly fine. As I understand it,
>> even *if* PF_MEMALLOC has a real reason to be here, I think it should
>> be very well documented.
> Did you try swap on mmcblk?
No I haven't even thought about that :) If you know it can be necessary
in that case, it's obviously fine. A comment would still be good though.