Merge branch 'for-linus' of ../linux-2.6-block into block-for-2.6.39/core

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

diff --git a/block/blk-core.c b/block/blk-core.c
index accff29ad6745cdb5b81264914c270fcc23e1eda..74d496ccf4d77271cc517420898492f9c1e97eda 100644 (file)
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -342,7 +342,7 @@ void blk_start_queue(struct request_queue *q)
        WARN_ON(!irqs_disabled());
 
        queue_flag_clear(QUEUE_FLAG_STOPPED, q);
-       __blk_run_queue(q);
+       __blk_run_queue(q, false);
 }
 EXPORT_SYMBOL(blk_start_queue);
 
@@ -396,13 +396,14 @@ EXPORT_SYMBOL(blk_sync_queue);
 /**
  * __blk_run_queue - run a single device queue
  * @q: The queue to run
+ * @force_kblockd: Don't run @q->request_fn directly.  Use kblockd.
  *
  * Description:
  *    See @blk_run_queue. This variant must be called with the queue lock
  *    held and interrupts disabled.
  *
  */
-void __blk_run_queue(struct request_queue *q)
+void __blk_run_queue(struct request_queue *q, bool force_kblockd)
 {
        blk_remove_plug(q);
 
@@ -416,7 +417,7 @@ void __blk_run_queue(struct request_queue *q)
         * Only recurse once to avoid overrunning the stack, let the unplug
         * handling reinvoke the handler shortly if we already got there.
         */
-       if (!queue_flag_test_and_set(QUEUE_FLAG_REENTER, q)) {
+       if (!force_kblockd && !queue_flag_test_and_set(QUEUE_FLAG_REENTER, q)) {
                q->request_fn(q);
                queue_flag_clear(QUEUE_FLAG_REENTER, q);
        } else {
@@ -439,7 +440,7 @@ void blk_run_queue(struct request_queue *q)
        unsigned long flags;
 
        spin_lock_irqsave(q->queue_lock, flags);
-       __blk_run_queue(q);
+       __blk_run_queue(q, false);
        spin_unlock_irqrestore(q->queue_lock, flags);
 }
 EXPORT_SYMBOL(blk_run_queue);
@@ -1085,7 +1086,7 @@ void blk_insert_request(struct request_queue *q, struct request *rq,
 
        drive_stat_acct(rq, 1);
        __elv_add_request(q, rq, where, 0);
-       __blk_run_queue(q);
+       __blk_run_queue(q, false);
        spin_unlock_irqrestore(q->queue_lock, flags);
 }
 EXPORT_SYMBOL(blk_insert_request);
@@ -2642,13 +2643,6 @@ int kblockd_schedule_work(struct request_queue *q, struct work_struct *work)
 }
 EXPORT_SYMBOL(kblockd_schedule_work);
 
-int kblockd_schedule_delayed_work(struct request_queue *q,
-                       struct delayed_work *dwork, unsigned long delay)
-{
-       return queue_delayed_work(kblockd_workqueue, dwork, delay);
-}
-EXPORT_SYMBOL(kblockd_schedule_delayed_work);
-
 int __init blk_dev_init(void)
 {
        BUILD_BUG_ON(__REQ_NR_BITS > 8 *