1 files changed, 8 insertions, 12 deletions

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 5c8018977efa..f71f5c58620c 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -463,6 +463,7 @@ struct request_queue
 #define QUEUE_FLAG_IO_STAT     15       /* do IO stats */
 #define QUEUE_FLAG_CQ          16       /* hardware does queuing */
 #define QUEUE_FLAG_DISCARD     17       /* supports DISCARD */
+#define QUEUE_FLAG_NOXMERGES   18       /* No extended merges */
 
 #define QUEUE_FLAG_DEFAULT      ((1 << QUEUE_FLAG_IO_STAT) |            \
                                  (1 << QUEUE_FLAG_CLUSTER) |            \
@@ -589,6 +590,8 @@ enum {
 #define blk_queue_queuing(q)    test_bit(QUEUE_FLAG_CQ, &(q)->queue_flags)
 #define blk_queue_stopped(q)    test_bit(QUEUE_FLAG_STOPPED, &(q)->queue_flags)
 #define blk_queue_nomerges(q)   test_bit(QUEUE_FLAG_NOMERGES, &(q)->queue_flags)
+#define blk_queue_noxmerges(q)  \
+        test_bit(QUEUE_FLAG_NOXMERGES, &(q)->queue_flags)
 #define blk_queue_nonrot(q)     test_bit(QUEUE_FLAG_NONROT, &(q)->queue_flags)
 #define blk_queue_io_stat(q)    test_bit(QUEUE_FLAG_IO_STAT, &(q)->queue_flags)
 #define blk_queue_flushing(q)   ((q)->ordseq)
@@ -1112,18 +1115,13 @@ static inline int queue_alignment_offset(struct request_queue *q)
         return q->limits.alignment_offset;
 }
 
-static inline int queue_limit_alignment_offset(struct queue_limits *lim, sector_t offset)
+static inline int queue_limit_alignment_offset(struct queue_limits *lim, sector_t sector)
 {
         unsigned int granularity = max(lim->physical_block_size, lim->io_min);
+        unsigned int alignment = (sector << 9) & (granularity - 1);
 
-        offset &= granularity - 1;
-        return (granularity + lim->alignment_offset - offset) & (granularity - 1);
-}
-
-static inline int queue_sector_alignment_offset(struct request_queue *q,
-                                                sector_t sector)
-{
-        return queue_limit_alignment_offset(&q->limits, sector << 9);
+        return (granularity + lim->alignment_offset - alignment)
+                & (granularity - 1);
 }
 
 static inline int bdev_alignment_offset(struct block_device *bdev)
@@ -1147,10 +1145,8 @@ static inline int queue_discard_alignment(struct request_queue *q)
         return q->limits.discard_alignment;
 }
 
-static inline int queue_sector_discard_alignment(struct request_queue *q,
-                                                 sector_t sector)
+static inline int queue_limit_discard_alignment(struct queue_limits *lim, sector_t sector)
 {
-        struct queue_limits *lim = &q->limits;
         unsigned int alignment = (sector << 9) & (lim->discard_granularity - 1);
 
         return (lim->discard_granularity + lim->discard_alignment - alignment)