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mm: move use_mm/unuse_mm from aio.c to mm/

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Anyone who wants to do copy to/from user from a kernel thread, needs
use_mm (like what fs/aio has).  Move that into mm/, to make reusing and
exporting easier down the line, and make aio use it.  Next intended user,
besides aio, will be vhost-net.

Acked-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Michael S. Tsirkin 2009-09-21 17:03:51 -07:00 • committed by Linus Torvalds
parent 425fbf047c
commit 3d2d827f5c
4 changed files with 66 additions and 47 deletions
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9
include/linux/mmu_context.h Normal file
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@ -0,0 +1,9 @@
#ifndef _LINUX_MMU_CONTEXT_H
#define _LINUX_MMU_CONTEXT_H
struct mm_struct;
void use_mm(struct mm_struct *mm);
void unuse_mm(struct mm_struct *mm);
#endif