summaryrefslogtreecommitdiff
path: root/drivers/md/md.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/md/md.h')
-rw-r--r--drivers/md/md.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/md/md.h b/drivers/md/md.h
index 2a514036a83d..42f8398181a8 100644
--- a/drivers/md/md.h
+++ b/drivers/md/md.h
@@ -710,4 +710,11 @@ static inline void mddev_clear_unsupported_flags(struct mddev *mddev,
{
mddev->flags &= ~unsupported_flags;
}
+
+static inline void mddev_check_writesame(struct mddev *mddev, struct bio *bio)
+{
+ if (bio_op(bio) == REQ_OP_WRITE_SAME &&
+ !bdev_get_queue(bio->bi_bdev)->limits.max_write_same_sectors)
+ mddev->queue->limits.max_write_same_sectors = 0;
+}
#endif /* _MD_MD_H */