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-rw-r--r--block/ll_rw_blk.c25
1 files changed, 22 insertions, 3 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index 5c01911af47c..8b2b2509f60e 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -3723,13 +3723,32 @@ static inline void __end_request(struct request *rq, int uptodate,
}
}
-static unsigned int rq_byte_size(struct request *rq)
+/**
+ * blk_rq_bytes - Returns bytes left to complete in the entire request
+ **/
+unsigned int blk_rq_bytes(struct request *rq)
{
if (blk_fs_request(rq))
return rq->hard_nr_sectors << 9;
return rq->data_len;
}
+EXPORT_SYMBOL_GPL(blk_rq_bytes);
+
+/**
+ * blk_rq_cur_bytes - Returns bytes left to complete in the current segment
+ **/
+unsigned int blk_rq_cur_bytes(struct request *rq)
+{
+ if (blk_fs_request(rq))
+ return rq->current_nr_sectors << 9;
+
+ if (rq->bio)
+ return rq->bio->bi_size;
+
+ return rq->data_len;
+}
+EXPORT_SYMBOL_GPL(blk_rq_cur_bytes);
/**
* end_queued_request - end all I/O on a queued request
@@ -3744,7 +3763,7 @@ static unsigned int rq_byte_size(struct request *rq)
**/
void end_queued_request(struct request *rq, int uptodate)
{
- __end_request(rq, uptodate, rq_byte_size(rq), 1);
+ __end_request(rq, uptodate, blk_rq_bytes(rq), 1);
}
EXPORT_SYMBOL(end_queued_request);
@@ -3761,7 +3780,7 @@ EXPORT_SYMBOL(end_queued_request);
**/
void end_dequeued_request(struct request *rq, int uptodate)
{
- __end_request(rq, uptodate, rq_byte_size(rq), 0);
+ __end_request(rq, uptodate, blk_rq_bytes(rq), 0);
}
EXPORT_SYMBOL(end_dequeued_request);