On 2015/12/17 9:38, Izumi, Taku wrote: > Dear Xishi, > > Sorry for late. > >> -----Original Message----- >> From: Xishi Qiu [mailto:qiuxishi@xxxxxxxxxx] >> Sent: Friday, December 11, 2015 6:44 PM >> To: Izumi, Taku/泉 拓 >> Cc: Luck, Tony; linux-kernel@xxxxxxxxxxxxxxx; linux-mm@xxxxxxxxx; akpm@xxxxxxxxxxxxxxxxxxxx; Kamezawa, Hiroyuki/亀澤 寛 >> 之; mel@xxxxxxxxx; Hansen, Dave; matt@xxxxxxxxxxxxxxxxxxx >> Subject: Re: [PATCH v3 2/2] mm: Introduce kernelcore=mirror option >> >> On 2015/12/11 13:53, Izumi, Taku wrote: >> >>> Dear Xishi, >>> >>>> Hi Taku, >>>> >>>> Whether it is possible that we rewrite the fallback function in buddy system >>>> when zone_movable and mirrored_kernelcore are both enabled? >>> >>> What does "when zone_movable and mirrored_kernelcore are both enabled?" mean ? >>> >>> My patchset just provides a new way to create ZONE_MOVABLE. >>> >> >> Hi Taku, >> Hi Taku, We can NOT specify kernelcore= "nn[KMG]" and "mirror" at the same time. So when we use "mirror", in fact, the movable zone is a new zone. I think it is more appropriate with this name "mirrored zone", and also we can rewrite the fallback function in buddy system in this case. Thanks, Xishi Qiu >> I mean when zone_movable is from kernelcore=mirror, not kernelcore=nn[KMG]. > > I'm not quite sure what you are saying, but if you want to screen user memory > so that one is allocated from mirrored zone and another is from non-mirrored zone, > I think it is possible to reuse my patchset. > > Sincerely, > Taku Izumi > >> Thanks, >> Xishi Qiu >> >>> Sincerely, >>> Taku Izumi >>>> >>>> It seems something like that we add a new zone but the name is zone_movable, >>>> not zone_mirror. And the prerequisite is that we won't enable these two >>>> features(movable memory and mirrored memory) at the same time. Thus we can >>>> reuse the code of movable zone. >>>> >>> >>> -- >>> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> Please read the FAQ at http://www.tux.org/lkml/ >>> >>> . >>> >> >> > > > . > -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>
