Commit c313dc5d authored by Weijie Yang's avatar Weijie Yang Committed by Linus Torvalds

mm: mincore: add hwpoison page handle

When the encountered pte is a swap entry, the current code handles two
cases: migration and normal swapentry, but we have a third case: hwpoison
page.

This patch adds hwpoison page handle, consider hwpoison page incore as
same as migration.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: default avatarWeijie Yang <weijie.yang@samsung.com>
Acked-by: default avatarJohannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@suse.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Rik van Riel <riel@redhat.com>
Acked-by: default avatarNaoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent b258d860
...@@ -137,8 +137,11 @@ static void mincore_pte_range(struct vm_area_struct *vma, pmd_t *pmd, ...@@ -137,8 +137,11 @@ static void mincore_pte_range(struct vm_area_struct *vma, pmd_t *pmd,
} else { /* pte is a swap entry */ } else { /* pte is a swap entry */
swp_entry_t entry = pte_to_swp_entry(pte); swp_entry_t entry = pte_to_swp_entry(pte);
if (is_migration_entry(entry)) { if (non_swap_entry(entry)) {
/* migration entries are always uptodate */ /*
* migration or hwpoison entries are always
* uptodate
*/
*vec = 1; *vec = 1;
} else { } else {
#ifdef CONFIG_SWAP #ifdef CONFIG_SWAP
......
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