md: support REQ_OP_WRITE_ZEROES

[mirror_ubuntu-eoan-kernel.git] / drivers / md / md.h

diff --git a/drivers/md/md.h b/drivers/md/md.h
index b8859cbf84b618b39ed3d92a2887e8764c403919..1e76d64ce1803be229477fd83887514980390dee 100644 (file)
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -676,16 +676,10 @@ extern void mddev_resume(struct mddev *mddev);
 extern struct bio *bio_alloc_mddev(gfp_t gfp_mask, int nr_iovecs,
                                   struct mddev *mddev);
 
-extern void md_unplug(struct blk_plug_cb *cb, bool from_schedule);
 extern void md_reload_sb(struct mddev *mddev, int raid_disk);
 extern void md_update_sb(struct mddev *mddev, int force);
 extern void md_kick_rdev_from_array(struct md_rdev * rdev);
 struct md_rdev *md_find_rdev_nr_rcu(struct mddev *mddev, int nr);
-static inline int mddev_check_plugged(struct mddev *mddev)
-{
-       return !!blk_check_plugged(md_unplug, mddev,
-                                  sizeof(struct blk_plug_cb));
-}
 
 static inline void rdev_dec_pending(struct md_rdev *rdev, struct mddev *mddev)
 {
@@ -715,4 +709,11 @@ static inline void mddev_check_writesame(struct mddev *mddev, struct bio *bio)
            !bdev_get_queue(bio->bi_bdev)->limits.max_write_same_sectors)
                mddev->queue->limits.max_write_same_sectors = 0;
 }
+
+static inline void mddev_check_write_zeroes(struct mddev *mddev, struct bio *bio)
+{
+       if (bio_op(bio) == REQ_OP_WRITE_ZEROES &&
+           !bdev_get_queue(bio->bi_bdev)->limits.max_write_zeroes_sectors)
+               mddev->queue->limits.max_write_zeroes_sectors = 0;
+}
 #endif /* _MD_MD_H */