mm: export find_extend_vma() and handle_mm_fault() for driver use

This lets drivers like the AMD IOMMUv2 driver handle faults a bit more simply, rather than doing tricks with page refs and get_user_pages(). Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Oded Gabbay <oded.gabbay@amd.com> Cc: Joerg Roedel <jroedel@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
git-mirror · Dec 13, 2014 · e1d6d01 · e1d6d01
1 parent 7d9ca00
commit e1d6d01
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diff --git a/mm/memory.c b/mm/memory.c
@@ -3365,6 +3365,7 @@ int handle_mm_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 
 	return ret;
 }
+EXPORT_SYMBOL_GPL(handle_mm_fault);
 
 #ifndef __PAGETABLE_PUD_FOLDED
 /*

diff --git a/mm/mmap.c b/mm/mmap.c
@@ -2362,6 +2362,8 @@ find_extend_vma(struct mm_struct *mm, unsigned long addr)
 }
 #endif
 
+EXPORT_SYMBOL_GPL(find_extend_vma);
+
 /*
  * Ok - we have the memory areas we should free on the vma list,
  * so release them, and do the vma updates.
-Original file line number
+Diff line change
@@ Expand Up @@
     	return ret;
     }
+    EXPORT_SYMBOL_GPL(handle_mm_fault);
     #ifndef __PAGETABLE_PUD_FOLDED
     /*
@@ Expand Down @@