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Commit 5da779c3 authored by Michael S. Tsirkin's avatar Michael S. Tsirkin Committed by David S. Miller
Browse files

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: default avatarAndrea Arcangeli <aarcange@redhat.com>
Acked-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 05c2828c

mm/mmu_context.c

+3 −0
Original line number Diff line number Diff line
@@ -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);