From: Rusty Russell <rusty@rustcorp•com.au>
To: netdev@vger•kernel.org
Cc: Andrea Arcangeli <aarcange@redhat•com>,
"Michael S. Tsirkin" <mst@redhat•com>
Cc: "Michael S. Tsirkin" <mst@redhat•com>
Subject: [PATCH 2/3] mm: export use_mm/unuse_mm to modules
Date: Tue, 8 Dec 2009 13:49:54 +1030 [thread overview]
Message-ID: <200912081349.54715.rusty@rustcorp.com.au> (raw)
From: "Michael S. Tsirkin" <mst@redhat•com>
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@redhat•com>
Signed-off-by: "Michael S. Tsirkin" <mst@redhat•com>
Signed-off-by: Rusty Russell <rusty@rustcorp•com.au>
---
mm/mmu_context.c | 3 +++
1 file changed, 3 insertions(+)
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);
reply other threads:[~2009-12-08 3:19 UTC|newest]
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