> -----Original Message----- > From: Dave Hansen [mailto:dave.han...@intel.com] > Sent: Tuesday, July 23, 2013 11:28 AM > To: KY Srinivasan > Cc: Michal Hocko; gre...@linuxfoundation.org; linux-kernel@vger.kernel.org; > de...@linuxdriverproject.org; o...@aepfle.de; a...@canonical.com; > a...@firstfloor.org; a...@linux-foundation.org; linux...@kvack.org; > kamezawa.hiroy...@gmail.com; han...@cmpxchg.org; ying...@google.com; > jasow...@redhat.com; k...@vrfy.org > Subject: Re: [PATCH 1/1] Drivers: base: memory: Export symbols for onlining > memory blocks > > On 07/23/2013 07:52 AM, KY Srinivasan wrote: > > The current scheme of involving user > > level code to close this loop obviously does not perform well under high > memory pressure. > > Adding memory usually requires allocating some large, contiguous areas > of memory for use as mem_map[] and other VM structures. That's really > hard to do under heavy memory pressure. How are you accomplishing this?
I cannot avoid failures because of lack of memory. In this case I notify the host of the failure and also tag the failure as transient. Host retries the operation after some delay. There is no guarantee it will succeed though. K. Y > > > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
