Michael S. Tsirkin
2009-Nov-03 17:24 UTC
[PATCHv7 2/3] mm: export use_mm/unuse_mm to modules
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 at redhat.com> Signed-off-by: Michael S. Tsirkin <mst at redhat.com> --- 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); -- 1.6.5.2.143.g8cc62
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 at redhat.com> > Signed-off-by: Michael S. Tsirkin <mst at redhat.com>I need this too: Acked-by: Gregory Haskins <ghaskins at novell.com>> --- > 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);-------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 267 bytes Desc: OpenPGP digital signature Url : http://lists.linux-foundation.org/pipermail/virtualization/attachments/20091103/0d512af2/attachment.pgp