Messages in this thread | | | Date | Tue, 11 Oct 2016 19:22:29 +0200 | From | Michal Hocko <> | Subject | Re: [RFC PATCH 1/1] mm/percpu.c: fix memory leakage issue when allocate a odd alignment area |
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On Tue 11-10-16 21:24:50, zijun_hu wrote: > From: zijun_hu <zijun_hu@htc.com> > > the LSB of a chunk->map element is used for free/in-use flag of a area > and the other bits for offset, the sufficient and necessary condition of > this usage is that both size and alignment of a area must be even numbers > however, pcpu_alloc() doesn't force its @align parameter a even number > explicitly, so a odd @align maybe causes a series of errors, see below > example for concrete descriptions.
Is or was there any user who would use a different than even (or power of 2) alighment? If not is this really worth handling?
-- Michal Hocko SUSE Labs
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