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-rw-r--r--include/linux/blkdev.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 9cc7cc5fdce..6dcd30d806c 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -918,6 +918,8 @@ extern void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter);
#define MAX_SEGMENT_SIZE 65536
+#define BLK_SEG_BOUNDARY_MASK 0xFFFFFFFFUL
+
#define blkdev_entry_to_request(entry) list_entry((entry), struct request, queuelist)
static inline int queue_hardsect_size(struct request_queue *q)