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-rw-r--r--block/blk.h9
1 files changed, 8 insertions, 1 deletions
diff --git a/block/blk.h b/block/blk.h
index 9b2c324e440..404c10b25ca 100644
--- a/block/blk.h
+++ b/block/blk.h
@@ -149,9 +149,16 @@ static inline int blk_cpu_to_group(int cpu)
#endif
}
+/*
+ * Contribute to IO statistics IFF:
+ *
+ * a) it's attached to a gendisk, and
+ * b) the queue had IO stats enabled when this request was started, and
+ * c) it's a file system request
+ */
static inline int blk_do_io_stat(struct request *rq)
{
- return rq->rq_disk && blk_rq_io_stat(rq);
+ return rq->rq_disk && blk_rq_io_stat(rq) && blk_fs_request(rq);
}
#endif