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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 /include/linux/rmap.h
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 'include/linux/rmap.h')
-rw-r--r--include/linux/rmap.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index bf116d0dbf23..8dff2ffab82c 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -112,6 +112,12 @@ int page_mkclean(struct page *);
*/
int try_to_munlock(struct page *);
+/*
+ * Called by memory-failure.c to kill processes.
+ */
+struct anon_vma *page_lock_anon_vma(struct page *page);
+void page_unlock_anon_vma(struct anon_vma *anon_vma);
+
#else /* !CONFIG_MMU */
#define anon_vma_init() do {} while (0)