Commit 7e27f22c authored by Oscar Salvador's avatar Oscar Salvador Committed by Linus Torvalds
Browse files

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.

Signed-off-by: default avatarOscar Salvador <osalvador@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Acked-by: default avatarNaoya Horiguchi <naoya.horiguchi@nec.com>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Aristeu Rozanski <aris@ruivo.org>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Dmitry Yakunin <zeil@yandex-team.ru>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Oscar Salvador <osalvador@suse.com>
Cc: Qian Cai <cai@lca.pw>
Cc: Tony Luck <tony.luck@intel.com>
Link: https://lkml.kernel.org/r/20200922135650.1634-5-osalvador@suse.de


Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent fd476720

include/linux/mm.h

+0 −1
Original line number Diff line number Diff line
@@ -3025,7 +3025,6 @@ 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;

mm/memory-failure.c

+1 −2
Original line number Diff line number Diff line
@@ -924,7 +924,7 @@ 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);
@@ -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