From: Yu Kuai <yukuai3@xxxxxxxxxx>
Prepare to support discard in new md bitmap.
Signed-off-by: Yu Kuai <yukuai3@xxxxxxxxxx>
---
drivers/md/md-bitmap.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/md/md-bitmap.h b/drivers/md/md-bitmap.h
index d3d50629af91..c3fc051c88e9 100644
--- a/drivers/md/md-bitmap.h
+++ b/drivers/md/md-bitmap.h
@@ -94,6 +94,11 @@ struct bitmap_operations {
unsigned long sectors);
void (*endwrite)(struct mddev *mddev, sector_t offset,
unsigned long sectors);
+ int (*start_discard)(struct mddev *mddev, sector_t offset,
+ unsigned long sectors);
+ void (*end_discard)(struct mddev *mddev, sector_t offset,
+ unsigned long sectors);
+
bool (*start_sync)(struct mddev *mddev, sector_t offset,
sector_t *blocks, bool degraded);
void (*end_sync)(struct mddev *mddev, sector_t offset, sector_t *blocks);
--
2.39.2
