Messages in this thread |  | | Date | Tue, 5 Feb 2013 12:01:37 +0000 | From | Mel Gorman <> | Subject | Re: [PATCH V2 1/2] mm: hotplug: implement non-movable version of get_user_pages() called get_user_pages_non_movable() |
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On Tue, Feb 05, 2013 at 05:21:52PM +0800, Lin Feng wrote: > get_user_pages() always tries to allocate pages from movable zone, which is not > reliable to memory hotremove framework in some case. > > This patch introduces a new library function called get_user_pages_non_movable() > to pin pages only from zone non-movable in memory. > It's a wrapper of get_user_pages() but it makes sure that all pages come from > non-movable zone via additional page migration. > > Cc: Andrew Morton <akpm@linux-foundation.org> > Cc: Mel Gorman <mgorman@suse.de> > Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> > Cc: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com> > Cc: Jeff Moyer <jmoyer@redhat.com> > Cc: Minchan Kim <minchan@kernel.org> > Cc: Zach Brown <zab@redhat.com> > Reviewed-by: Tang Chen <tangchen@cn.fujitsu.com> > Reviewed-by: Gu Zheng <guz.fnst@cn.fujitsu.com> > Signed-off-by: Lin Feng <linfeng@cn.fujitsu.com>
I already had started the review of V1 before this was sent unfortunately. However, I think the feedback I gave for V1 is still valid so I'll wait for comments on that review before digging further.
-- Mel Gorman SUSE Labs
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