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Commit 7456b040 authored by Wu Fengguang's avatar Wu Fengguang Committed by Andi Kleen
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HWPOISON: fix invalid page count in printk output 



The madvise injector already holds a reference when passing in a page
to the memory-failure code. The code corrects for this additional reference
for its checks, but the final printk output didn't. Fix that.

Signed-off-by: default avatarWu Fengguang <fengguang.wu@intel.com>
Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
parent 65a64464

mm/memory-failure.c

+5 −2
Original line number Diff line number Diff line
@@ -613,13 +613,16 @@ static int page_action(struct page_state *ps, struct page *p, 
			unsigned long pfn, int ref)

{

	int result;

	int count;



	result = ps->action(p, pfn);

	action_result(pfn, ps->msg, result);

	if (page_count(p) != 1 + ref)



	count = page_count(p) - 1 - ref;

	if (count != 0)

		printk(KERN_ERR

		       "MCE %#lx: %s page still referenced by %d users\n",

		       pfn, ps->msg, page_count(p) - 1);

		       pfn, ps->msg, count);



	/* Could do more checks here if page looks ok */

	/*