Michael S. Tsirkin wrote: > vhost net module wants to do copy to/from user from a kernel thread, > which needs use_mm. Export it to modules. > > Acked-by: Andrea Arcangeli <aarcange@xxxxxxxxxx> > Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx> I need this too: Acked-by: Gregory Haskins <ghaskins@xxxxxxxxxx> > --- > mm/mmu_context.c | 3 +++ > 1 files changed, 3 insertions(+), 0 deletions(-) > > diff --git a/mm/mmu_context.c b/mm/mmu_context.c > index ded9081..0777654 100644 > --- a/mm/mmu_context.c > +++ b/mm/mmu_context.c > @@ -5,6 +5,7 @@ > > #include <linux/mm.h> > #include <linux/mmu_context.h> > +#include <linux/module.h> > #include <linux/sched.h> > > #include <asm/mmu_context.h> > @@ -37,6 +38,7 @@ void use_mm(struct mm_struct *mm) > if (active_mm != mm) > mmdrop(active_mm); > } > +EXPORT_SYMBOL_GPL(use_mm); > > /* > * unuse_mm > @@ -56,3 +58,4 @@ void unuse_mm(struct mm_struct *mm) > enter_lazy_tlb(mm, tsk); > task_unlock(tsk); > } > +EXPORT_SYMBOL_GPL(unuse_mm);
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