@@ -824,7 +824,6 @@ static int me_huge_page(struct page *p, unsigned long pfn)
#define sc ((1UL << PG_swapcache) | (1UL << PG_swapbacked))
#define unevict (1UL << PG_unevictable)
#define mlock (1UL << PG_mlocked)
-#define writeback (1UL << PG_writeback)
#define lru (1UL << PG_lru)
#define head (1UL << PG_head)
#define slab (1UL << PG_slab)
@@ -873,7 +872,6 @@ static int me_huge_page(struct page *p, unsigned long pfn)
#undef sc
#undef unevict
#undef mlock
-#undef writeback
#undef lru
#undef head
#undef slab
Unlike others we don't use the marco writeback. so let's remove it to tame gcc warning: mm/memory-failure.c:827: warning: macro "writeback" is not used [-Wunused-macros] Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com> Cc: Naoya Horiguchi <naoya.horiguchi@nec.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: linux-mm@kvack.org Cc: linux-kernel@vger.kernel.org --- mm/memory-failure.c | 2 -- 1 file changed, 2 deletions(-)