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 <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
---
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 <[email protected]>
> Signed-off-by: Michael S. Tsirkin <[email protected]>
I need this too:
Acked-by: Gregory Haskins <[email protected]>
> ---
> 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);