| Date | Wed, 25 Jan 2023 16:21:59 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH v3 1/7] kernel/fork: convert vma assignment to a memcpy |
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On Wed, 25 Jan 2023 15:35:48 -0800 Suren Baghdasaryan <surenb@google.com> wrote:
> Convert vma assignment in vm_area_dup() to a memcpy() to prevent compiler > errors when we add a const modifier to vma->vm_flags. > > ... > > --- a/kernel/fork.c > +++ b/kernel/fork.c > @@ -482,7 +482,7 @@ struct vm_area_struct *vm_area_dup(struct vm_area_struct *orig) > * orig->shared.rb may be modified concurrently, but the clone > * will be reinitialized. > */ > - *new = data_race(*orig); > + memcpy(new, orig, sizeof(*new));
The data_race() removal is unchangelogged?
> INIT_LIST_HEAD(&new->anon_vma_chain); > dup_anon_vma_name(orig, new); > }
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