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authorMichael S. Tsirkin <mst@redhat.com>2010-01-14 06:17:18 +0000
committerDavid S. Miller <davem@davemloft.net>2010-01-15 01:43:28 -0800
commit5da779c34ccff5e1e617892b6c8bd8260fb1f04c (patch)
treefbcaab087c066b7e4c294a9150e56bc742ebee38 /mm
parent05c2828c72c4eabf62376adfe27bd24797621f62 (diff)
downloadlinaro-lsk-5da779c34ccff5e1e617892b6c8bd8260fb1f04c.tar.gz
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@redhat.com> Acked-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm')
-rw-r--r--mm/mmu_context.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/mm/mmu_context.c b/mm/mmu_context.c
index ded9081f402..0777654147c 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);