Merge tag 'devicetree-fixes-for-4.5-2' of git://git.kernel.org/pub/scm/linux/kernel...

[cascardo/linux.git] / block / blk-core.c

diff --git a/block/blk-core.c b/block/blk-core.c
index 476244d..b83d297 100644 (file)
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -680,6 +680,13 @@ static void blk_queue_usage_counter_release(struct percpu_ref *ref)
        wake_up_all(&q->mq_freeze_wq);
 }
 
+static void blk_rq_timed_out_timer(unsigned long data)
+{
+       struct request_queue *q = (struct request_queue *)data;
+
+       kblockd_schedule_work(&q->timeout_work);
+}
+
 struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id)
 {
        struct request_queue *q;
@@ -841,6 +848,7 @@ blk_init_allocated_queue(struct request_queue *q, request_fn_proc *rfn,
        if (blk_init_rl(&q->root_rl, q, GFP_KERNEL))
                goto fail;
 
+       INIT_WORK(&q->timeout_work, blk_timeout_work);
        q->request_fn           = rfn;
        q->prep_rq_fn           = NULL;
        q->unprep_rq_fn         = NULL;
@@ -2447,14 +2455,16 @@ struct request *blk_peek_request(struct request_queue *q)
 
                        rq = NULL;
                        break;
-               } else if (ret == BLKPREP_KILL) {
+               } else if (ret == BLKPREP_KILL || ret == BLKPREP_INVALID) {
+                       int err = (ret == BLKPREP_INVALID) ? -EREMOTEIO : -EIO;
+
                        rq->cmd_flags |= REQ_QUIET;
                        /*
                         * Mark this request as started so we don't trigger
                         * any debug logic in the end I/O path.
                         */
                        blk_start_request(rq);
-                       __blk_end_request_all(rq, -EIO);
+                       __blk_end_request_all(rq, err);
                } else {
                        printk(KERN_ERR "%s: bad return=%d\n", __func__, ret);
                        break;