[BLOCK] Implement elv_drain_elevator for improved switch error detection

[safe/jmp/linux-2.6] / include / linux / blkdev.h

diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index 025a7f0..a33a31e 100644 (file)
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -406,6 +406,7 @@ struct request_queue
 
        atomic_t                refcnt;
 
+       unsigned int            nr_sorted;
        unsigned int            in_flight;
 
        /*
@@ -631,6 +632,7 @@ static inline void elv_dispatch_add_tail(struct request_queue *q,
 {
        if (q->last_merge == rq)
                q->last_merge = NULL;
+       q->nr_sorted--;
 
        q->end_sector = rq_end_sector(rq);
        q->boundary_rq = rq;