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authorAndi Kleen <andi@firstfloor.org>2009-09-16 11:50:04 +0200
committerAndi Kleen <ak@linux.intel.com>2009-09-16 11:50:04 +0200
commit10be22dfe1e6ad978269dc275147e0ed049187bb (patch)
treed00418a59d9de0aadd092559d92f0d348d87a4b1 /mm/rmap.c
parentd466f2fcb32cd97fd586bfa33f5dba3ac78aadb0 (diff)
HWPOISON: Export some rmap vma locking to outside world
Needed for later patch that walks rmap entries on its own. This used to be very frowned upon, but memory-failure.c does some rather specialized rmap walking and rmap has been stable for quite some time, so I think it's ok now to export it. Signed-off-by: Andi Kleen <ak@linux.intel.com>
Diffstat (limited to 'mm/rmap.c')
-rw-r--r--mm/rmap.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/rmap.c b/mm/rmap.c
index 0895b5c7cbff..5a35c030e779 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -191,7 +191,7 @@ void __init anon_vma_init(void)
* Getting a lock on a stable anon_vma from a page off the LRU is
* tricky: page_lock_anon_vma rely on RCU to guard against the races.
*/
-static struct anon_vma *page_lock_anon_vma(struct page *page)
+struct anon_vma *page_lock_anon_vma(struct page *page)
{
struct anon_vma *anon_vma;
unsigned long anon_mapping;
@@ -211,7 +211,7 @@ out:
return NULL;
}
-static void page_unlock_anon_vma(struct anon_vma *anon_vma)
+void page_unlock_anon_vma(struct anon_vma *anon_vma)
{
spin_unlock(&anon_vma->lock);
rcu_read_unlock();

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