2020-09-10 05:19:36

by Alex Shi

[permalink] [raw]
Subject: [PATCH] mm: remove unused marco writeback

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 <[email protected]>
Cc: Naoya Horiguchi <[email protected]>
Cc: Andrew Morton <[email protected]>
Cc: [email protected]
Cc: [email protected]
---
mm/memory-failure.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index f1aa6433f404..3a97440cdf8c 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -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
--
1.8.3.1