diff --git a/block/blk-barrier.c b/block/blk-barrier.c
index 5c99ff8d2db8937cffb50ab1d768e52fd49ff9f3..6e72d661ae425daa62f8b7999acc8f825e2a12e9 100644
--- a/block/blk-barrier.c
+++ b/block/blk-barrier.c
@@ -161,7 +161,7 @@ static inline struct request *start_ordered(struct request_queue *q,
/*
* Prep proxy barrier request.
*/
- blkdev_dequeue_request(rq);
+ elv_dequeue_request(q, rq);
q->orig_bar_rq = rq;
rq = &q->bar_rq;
blk_rq_init(q, rq);
@@ -219,7 +219,7 @@ int blk_do_ordered(struct request_queue *q, struct request **rqp)
* This can happen when the queue switches to
* ORDERED_NONE while this request is on it.
*/
- blkdev_dequeue_request(rq);
+ elv_dequeue_request(q, rq);
if (__blk_end_request(rq, -EOPNOTSUPP,
blk_rq_bytes(rq)))
BUG();
diff --git a/block/blk-core.c b/block/blk-core.c
index 10e8a64a5a5b1b213cbc2886755b22dedce76313..c36aa98fafa3e4ed94adcf3e462945d59b0c1fcd 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -592,7 +592,7 @@ blk_init_queue_node(request_fn_proc *rfn, spinlock_t *lock, int node_id)
1 << QUEUE_FLAG_STACKABLE);
q->queue_lock = lock;
- blk_queue_segment_boundary(q, 0xffffffff);
+ blk_queue_segment_boundary(q, BLK_SEG_BOUNDARY_MASK);
blk_queue_make_request(q, __make_request);
blk_queue_max_segment_size(q, MAX_SEGMENT_SIZE);
@@ -1636,6 +1636,28 @@ int blk_insert_cloned_request(struct request_queue *q, struct request *rq)
}
EXPORT_SYMBOL_GPL(blk_insert_cloned_request);
+/**
+ * blkdev_dequeue_request - dequeue request and start timeout timer
+ * @req: request to dequeue
+ *
+ * Dequeue @req and start timeout timer on it. This hands off the
+ * request to the driver.
+ *
+ * Block internal functions which don't want to start timer should
+ * call elv_dequeue_request().
+ */
+void blkdev_dequeue_request(struct request *req)
+{
+ elv_dequeue_request(req->q, req);
+
+ /*
+ * We are now handing the request to the hardware, add the
+ * timeout handler.
+ */
+ blk_add_timer(req);
+}
+EXPORT_SYMBOL(blkdev_dequeue_request);
+
/**
* __end_that_request_first - end I/O on a request
* @req: the request being processed
@@ -1774,7 +1796,7 @@ static void end_that_request_last(struct request *req, int error)
blk_queue_end_tag(req->q, req);
if (blk_queued_rq(req))
- blkdev_dequeue_request(req);
+ elv_dequeue_request(req->q, req);
if (unlikely(laptop_mode) && blk_fs_request(req))
laptop_io_completion();
diff --git a/block/blk-map.c b/block/blk-map.c
index 0f4b4b88181178b0344127df63af79f7d95da915..2990447f45e913f7aa968ddc3979ea7b1a027a80 100644
--- a/block/blk-map.c
+++ b/block/blk-map.c
@@ -224,7 +224,7 @@ int blk_rq_map_user_iov(struct request_queue *q, struct request *rq,
*/
bio_get(bio);
bio_endio(bio, 0);
- bio_unmap_user(bio);
+ __blk_rq_unmap_user(bio);
return -EINVAL;
}
diff --git a/block/blk-settings.c b/block/blk-settings.c
index 41392fbe19ff9615253278fdf48e63369ad7e856..afa55e14e27896837cb026ce706438520ea848aa 100644
--- a/block/blk-settings.c
+++ b/block/blk-settings.c
@@ -125,6 +125,9 @@ void blk_queue_make_request(struct request_queue *q, make_request_fn *mfn)
q->nr_requests = BLKDEV_MAX_RQ;
blk_queue_max_phys_segments(q, MAX_PHYS_SEGMENTS);
blk_queue_max_hw_segments(q, MAX_HW_SEGMENTS);
+ blk_queue_segment_boundary(q, BLK_SEG_BOUNDARY_MASK);
+ blk_queue_max_segment_size(q, MAX_SEGMENT_SIZE);
+
q->make_request_fn = mfn;
q->backing_dev_info.ra_pages =
(VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE;
@@ -314,6 +317,7 @@ void blk_queue_stack_limits(struct request_queue *t, struct request_queue *b)
/* zero is "infinity" */
t->max_sectors = min_not_zero(t->max_sectors, b->max_sectors);
t->max_hw_sectors = min_not_zero(t->max_hw_sectors, b->max_hw_sectors);
+ t->seg_boundary_mask = min_not_zero(t->seg_boundary_mask, b->seg_boundary_mask);
t->max_phys_segments = min(t->max_phys_segments, b->max_phys_segments);
t->max_hw_segments = min(t->max_hw_segments, b->max_hw_segments);
diff --git a/block/elevator.c b/block/elevator.c
index 9ac82dde99dddcd5434659f65a1e81c2a166b639..a6951f76ba0c3fa3e9a0c9f8ff58a108e63dc85c 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -844,14 +844,7 @@ void elv_dequeue_request(struct request_queue *q, struct request *rq)
*/
if (blk_account_rq(rq))
q->in_flight++;
-
- /*
- * We are now handing the request to the hardware, add the
- * timeout handler.
- */
- blk_add_timer(rq);
}
-EXPORT_SYMBOL(elv_dequeue_request);
int elv_queue_empty(struct request_queue *q)
{
diff --git a/block/genhd.c b/block/genhd.c
index 27549e470da54d858e3bccd99946e2db2a311fa6..2f7feda61e35fc3cfd8dc74264300baeeaa56826 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1102,6 +1102,7 @@ struct gendisk *alloc_disk_node(int minors, int node_id)
kfree(disk);
return NULL;
}
+ disk->node_id = node_id;
if (disk_expand_part_tbl(disk, 0)) {
free_part_stats(&disk->part0);
kfree(disk);
@@ -1116,7 +1117,6 @@ struct gendisk *alloc_disk_node(int minors, int node_id)
device_initialize(disk_to_dev(disk));
INIT_WORK(&disk->async_notify,
media_change_notify_thread);
- disk->node_id = node_id;
}
return disk;
}
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index a63161aec48750ef51feb6e6e506c7ff83044dc0..04e5fd742c2c29e42fbba920e1303b889229ccf7 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -668,7 +668,7 @@ static void check_for_valid_limits(struct io_restrictions *rs)
if (!rs->max_segment_size)
rs->max_segment_size = MAX_SEGMENT_SIZE;
if (!rs->seg_boundary_mask)
- rs->seg_boundary_mask = -1;
+ rs->seg_boundary_mask = BLK_SEG_BOUNDARY_MASK;
if (!rs->bounce_pfn)
rs->bounce_pfn = -1;
}
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index a135256b272c79f6a7b462826e59735ce3b4d620..6dcd30d806cd8539917fea7c0ae216160de0425d 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -786,6 +786,8 @@ static inline void blk_run_address_space(struct address_space *mapping)
blk_run_backing_dev(mapping->backing_dev_info, NULL);
}
+extern void blkdev_dequeue_request(struct request *req);
+
/*
* blk_end_request() and friends.
* __blk_end_request() and end_request() must be called with
@@ -820,11 +822,6 @@ extern void blk_update_request(struct request *rq, int error,
extern unsigned int blk_rq_bytes(struct request *rq);
extern unsigned int blk_rq_cur_bytes(struct request *rq);
-static inline void blkdev_dequeue_request(struct request *req)
-{
- elv_dequeue_request(req->q, req);
-}
-
/*
* Access functions for manipulating queue properties
*/
@@ -921,6 +918,8 @@ extern void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter);
#define MAX_SEGMENT_SIZE 65536
+#define BLK_SEG_BOUNDARY_MASK 0xFFFFFFFFUL
+
#define blkdev_entry_to_request(entry) list_entry((entry), struct request, queuelist)
static inline int queue_hardsect_size(struct request_queue *q)