Messages in this thread |  | | Date | Tue, 7 Jan 2020 14:36:23 +0100 | From | Michal Hocko <> | Subject | Re: [RFC PATCH V2 2/10] mm: expose is_mem_section_removable() symbol |
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On Tue 07-01-20 21:09:42, lantianyu1986@gmail.com wrote: > From: Tianyu Lan <Tianyu.Lan@microsoft.com> > > Hyper-V balloon driver will use is_mem_section_removable() to > check whether memory block is removable or not when receive > memory hot remove msg. Expose it.
I do not think this is a good idea. The check is inherently racy. Why cannot the balloon driver simply hotremove the region when asked? -- Michal Hocko SUSE Labs
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