[PATCH] dm-writecache: remove unused member page_offset in writeback_struct

From: Huaisheng Ye
Date: Sat Apr 20 2019 - 12:35:45 EST


From: Huaisheng Ye <yehs1@xxxxxxxxxx>

The structure member page_offset in writeback_struct never has been
used actually. Remove it.

Signed-off-by: Huaisheng Ye <yehs1@xxxxxxxxxx>
---
drivers/md/dm-writecache.c | 2 --
1 file changed, 2 deletions(-)

diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index cfbbfbc..ddf1732 100644
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -190,7 +190,6 @@ struct writeback_struct {
struct dm_writecache *wc;
struct wc_entry **wc_list;
unsigned wc_list_n;
- unsigned page_offset;
struct page *page;
struct wc_entry *wc_list_inline[WB_LIST_INLINE];
struct bio bio;
@@ -1481,7 +1480,6 @@ static void __writecache_writeback_pmem(struct dm_writecache *wc, struct writeba
bio->bi_end_io = writecache_writeback_endio;
bio_set_dev(bio, wc->dev->bdev);
bio->bi_iter.bi_sector = read_original_sector(wc, e);
- wb->page_offset = PAGE_SIZE;
if (max_pages <= WB_LIST_INLINE ||
unlikely(!(wb->wc_list = kmalloc_array(max_pages, sizeof(struct wc_entry *),
GFP_NOIO | __GFP_NORETRY |
--
1.8.3.1