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path: root/drivers/block/umem.c
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Diffstat (limited to 'drivers/block/umem.c')
-rw-r--r--drivers/block/umem.c26
1 files changed, 1 insertions, 25 deletions
diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index 8be57151f5d6..031ca720d926 100644
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -241,8 +241,7 @@ static void dump_dmastat(struct cardinfo *card, unsigned int dmastat)
*
* Whenever IO on the active page completes, the Ready page is activated
* and the ex-Active page is clean out and made Ready.
- * Otherwise the Ready page is only activated when it becomes full, or
- * when mm_unplug_device is called via the unplug_io_fn.
+ * Otherwise the Ready page is only activated when it becomes full.
*
* If a request arrives while both pages a full, it is queued, and b_rdev is
* overloaded to record whether it was a read or a write.
@@ -333,17 +332,6 @@ static inline void reset_page(struct mm_page *page)
page->biotail = &page->bio;
}
-static void mm_unplug_device(struct request_queue *q)
-{
- struct cardinfo *card = q->queuedata;
- unsigned long flags;
-
- spin_lock_irqsave(&card->lock, flags);
- if (blk_remove_plug(q))
- activate(card);
- spin_unlock_irqrestore(&card->lock, flags);
-}
-
/*
* If there is room on Ready page, take
* one bh off list and add it.
@@ -535,7 +523,6 @@ static int mm_make_request(struct request_queue *q, struct bio *bio)
*card->biotail = bio;
bio->bi_next = NULL;
card->biotail = &bio->bi_next;
- blk_plug_device(q);
spin_unlock_irq(&card->lock);
return 0;
@@ -779,20 +766,10 @@ static int mm_getgeo(struct block_device *bdev, struct hd_geometry *geo)
return 0;
}
-/*
- * Future support for removable devices
- */
-static int mm_check_change(struct gendisk *disk)
-{
-/* struct cardinfo *dev = disk->private_data; */
- return 0;
-}
-
static const struct block_device_operations mm_fops = {
.owner = THIS_MODULE,
.getgeo = mm_getgeo,
.revalidate_disk = mm_revalidate,
- .media_changed = mm_check_change,
};
static int __devinit mm_pci_probe(struct pci_dev *dev,
@@ -907,7 +884,6 @@ static int __devinit mm_pci_probe(struct pci_dev *dev,
blk_queue_make_request(card->queue, mm_make_request);
card->queue->queue_lock = &card->lock;
card->queue->queuedata = card;
- card->queue->unplug_fn = mm_unplug_device;
tasklet_init(&card->tasklet, process_page, (unsigned long)card);