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Commit 71f72525 authored by Wu Fengguang's avatar Wu Fengguang Committed by Andi Kleen
Browse files

HWPOISON: comment dirty swapcache pages 



AK: Improve comment

Signed-off-by: default avatarWu Fengguang <fengguang.wu@intel.com>
Signed-off-by: default avatarAndi Kleen <ak@linux.intel.com>
parent db0480b3

mm/memory.c

+4 −0
Original line number Diff line number Diff line
@@ -2553,6 +2553,10 @@ static int do_swap_page(struct mm_struct *mm, struct vm_area_struct *vma, 
		ret = VM_FAULT_MAJOR;

		count_vm_event(PGMAJFAULT);

	} else if (PageHWPoison(page)) {

		/*

		 * hwpoisoned dirty swapcache pages are kept for killing

		 * owner processes (which may be unknown at hwpoison time)

		 */

		ret = VM_FAULT_HWPOISON;

		delayacct_clear_flag(DELAYACCT_PF_SWAPIN);

		goto out_release;