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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: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Naoya 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: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Oscar Salvador 2020-10-15 20:06:50 -07:00 committed by Linus Torvalds
parent fd476720c9
commit 7e27f22c9e
2 changed files with 1 additions and 3 deletions
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1
include/linux/mm.h
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@ -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;

3
mm/memory-failure.c
View File

@ -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