mm/memory-failure.c: remove unused macro `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 <alex.shi@linux.alibaba.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Link: https://lkml.kernel.org/r/1599715096-20369-1-git-send-email-alex.shi@linux.alibaba.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Alex Shi 2020-10-13 16:54:45 -07:00 committed by Linus Torvalds
parent c43bc03d0a
commit 2c3125977e

View File

@ -825,7 +825,6 @@ 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)
@ -874,7 +873,6 @@ static struct page_state {
#undef sc
#undef unevict
#undef mlock
#undef writeback
#undef lru
#undef head
#undef slab