block: hold extra reference to bio in blk_rq_map_user_iov()

[safe/jmp/linux-2.6] / block / blk-core.c

diff --git a/block/blk-core.c b/block/blk-core.c
index 81a4960..10e8a64 100644 (file)
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1091,8 +1091,15 @@ void init_request_from_bio(struct request *req, struct bio *bio)
        /*
         * inherit FAILFAST from bio (for read-ahead, and explicit FAILFAST)
         */
-       if (bio_rw_ahead(bio) || bio_failfast(bio))
-               req->cmd_flags |= REQ_FAILFAST;
+       if (bio_rw_ahead(bio))
+               req->cmd_flags |= (REQ_FAILFAST_DEV | REQ_FAILFAST_TRANSPORT |
+                                  REQ_FAILFAST_DRIVER);
+       if (bio_failfast_dev(bio))
+               req->cmd_flags |= REQ_FAILFAST_DEV;
+       if (bio_failfast_transport(bio))
+               req->cmd_flags |= REQ_FAILFAST_TRANSPORT;
+       if (bio_failfast_driver(bio))
+               req->cmd_flags |= REQ_FAILFAST_DRIVER;
 
        /*
         * REQ_BARRIER implies no merging, but lets make it explicit
@@ -1763,8 +1770,6 @@ static void end_that_request_last(struct request *req, int error)
 {
        struct gendisk *disk = req->rq_disk;
 
-       blk_delete_timer(req);
-
        if (blk_rq_tagged(req))
                blk_queue_end_tag(req->q, req);
 
@@ -1774,6 +1779,8 @@ static void end_that_request_last(struct request *req, int error)
        if (unlikely(laptop_mode) && blk_fs_request(req))
                laptop_io_completion();
 
+       blk_delete_timer(req);
+
        /*
         * Account IO completion.  bar_rq isn't accounted as a normal
         * IO on queueing nor completion.  Accounting the containing