From: Oscar Salvador <osalvador@xxxxxxx> Subject: mm,hwpoison: unexport get_hwpoison_page and make it static Since get_hwpoison_page is only used in memory-failure code now, let us un-export it and make it private to that code. Link: https://lkml.kernel.org/r/20200922135650.1634-5-osalvador@xxxxxxx Signed-off-by: Oscar Salvador <osalvador@xxxxxxx> Acked-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx> Cc: "Aneesh Kumar K.V" <aneesh.kumar@xxxxxxxxxxxxx> Cc: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx> Cc: Aristeu Rozanski <aris@xxxxxxxxx> Cc: Dave Hansen <dave.hansen@xxxxxxxxx> Cc: David Hildenbrand <david@xxxxxxxxxx> Cc: Dmitry Yakunin <zeil@xxxxxxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxxxx> Cc: Mike Kravetz <mike.kravetz@xxxxxxxxxx> Cc: Oscar Salvador <osalvador@xxxxxxxx> Cc: Qian Cai <cai@xxxxxx> Cc: Tony Luck <tony.luck@xxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/linux/mm.h | 1 - mm/memory-failure.c | 3 +-- 2 files changed, 1 insertion(+), 3 deletions(-) --- a/include/linux/mm.h~mmhwpoison-unexport-get_hwpoison_page-and-make-it-static +++ a/include/linux/mm.h @@ -3025,7 +3025,6 @@ extern int memory_failure(unsigned long 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; --- a/mm/memory-failure.c~mmhwpoison-unexport-get_hwpoison_page-and-make-it-static +++ a/mm/memory-failure.c @@ -924,7 +924,7 @@ static int page_action(struct page_state * 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); @@ -953,7 +953,6 @@ 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 _
