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authorStephen Wilson <wilsons@start.ca>2011-05-24 17:12:41 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-25 08:39:32 -0700
commitd98f6cb67fb5b9376d4957d7ba9f32eac35c2e08 (patch)
treee7fbb12bde5e30154403bf4e8cabf0bcf817aa65
parentc856507f2b2b47a49d8587afb58930b463f6bff4 (diff)
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mm: export get_vma_policy()
In commit 48fce3429d ("mempolicies: unexport get_vma_policy()") get_vma_policy() was marked static as all clients were local to mempolicy.c. However, the decision to generate /proc/pid/numa_maps in the numa memory policy code and outside the procfs subsystem introduces an artificial interdependency between the two systems. Exporting get_vma_policy() once again is the first step to clean up this interdependency. Signed-off-by: Stephen Wilson <wilsons@start.ca> Reviewed-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Hugh Dickins <hughd@google.com> Cc: David Rientjes <rientjes@google.com> Cc: Lee Schermerhorn <lee.schermerhorn@hp.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/mempolicy.h3
-rw-r--r--mm/mempolicy.c2
2 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 31ac26ca4acf..c2f603218fbc 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -199,6 +199,9 @@ void mpol_free_shared_policy(struct shared_policy *p);
struct mempolicy *mpol_shared_policy_lookup(struct shared_policy *sp,
unsigned long idx);
+struct mempolicy *get_vma_policy(struct task_struct *tsk,
+ struct vm_area_struct *vma, unsigned long addr);
+
extern void numa_default_policy(void);
extern void numa_policy_init(void);
extern void mpol_rebind_task(struct task_struct *tsk, const nodemask_t *new,
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 959a8b8c7350..5bfb03ef3cb0 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1489,7 +1489,7 @@ asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len,
* freeing by another task. It is the caller's responsibility to free the
* extra reference for shared policies.
*/
-static struct mempolicy *get_vma_policy(struct task_struct *task,
+struct mempolicy *get_vma_policy(struct task_struct *task,
struct vm_area_struct *vma, unsigned long addr)
{
struct mempolicy *pol = task->mempolicy;
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