[PATCH v3 06/15] mm,hwpoison: Un-export get_hwpoison_page and make it static

nao.horiguchi
2020-06-24T15:02:08Z

From: Oscar Salvador <osalvador@suse.de>

Since get_hwpoison_page is only used in memory-failure code now,
let us un-export it and make it private to that code.

Signed-off-by: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
---
include/linux/mm.h | 1 -
mm/memory-failure.c | 3 +--
2 files changed, 1 insertion(+), 3 deletions(-)

diff --git v5.8-rc1-mmots-2020-06-20-21-44/include/linux/mm.h v5.8-rc1-mmots-2020-06-20-21-44_patched/include/linux/mm.h
index e6ff54a7b284..050e9cffc2ea 100644
--- v5.8-rc1-mmots-2020-06-20-21-44/include/linux/mm.h
+++ v5.8-rc1-mmots-2020-06-20-21-44_patched/include/linux/mm.h
@@ -2995,7 +2995,6 @@ extern int memory_failure(unsigned long pfn, int flags);
extern void memory_failure_queue(unsigned long pfn, int flags);
extern void memory_failure_queue_kick(int cpu);
extern int unpoison_memory(unsigned long pfn);
-extern int get_hwpoison_page(struct page *page);
#define put_hwpoison_page(page) put_page(page)
extern int sysctl_memory_failure_early_kill;
extern int sysctl_memory_failure_recovery;
diff --git v5.8-rc1-mmots-2020-06-20-21-44/mm/memory-failure.c v5.8-rc1-mmots-2020-06-20-21-44_patched/mm/memory-failure.c
index d2d6010764e7..48feb45047f7 100644
--- v5.8-rc1-mmots-2020-06-20-21-44/mm/memory-failure.c
+++ v5.8-rc1-mmots-2020-06-20-21-44_patched/mm/memory-failure.c
@@ -925,7 +925,7 @@ static int page_action(struct page_state *ps, struct page *p,
* Return: return 0 if failed to grab the refcount, otherwise true (some
* non-zero value.)
*/
-int get_hwpoison_page(struct page *page)
+static int get_hwpoison_page(struct page *page)
{
struct page *head = compound_head(page);

@@ -954,7 +954,6 @@ int get_hwpoison_page(struct page *page)

return 0;
}
-EXPORT_SYMBOL_GPL(get_hwpoison_page);

/*
* Do all that is necessary to remove user space mappings. Unmap
--
2.17.1