mm/hugetlb.c: fix warning on freeing hwpoisoned hugepage

Fix the warning from __list_del_entry() which is triggered when a process
tries to do free_huge_page() for a hwpoisoned hugepage.

free_huge_page() can be called for hwpoisoned hugepage from
unpoison_memory().  This function gets refcount once and clears
PageHWPoison, and then puts refcount twice to return the hugepage back to
free pool.  The second put_page() finally reaches free_huge_page().

Signed-off-by: Naoya Horiguchi <[email protected]>
Reviewed-by: Aneesh Kumar K.V <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: Wu Fengguang <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

0 files changed, 0 insertions, 0 deletions