umem: remove ->revalidate_disk

->revalidate_disk is only called during add_disk for pd, but at that
point the driver has already set the capacity to the same value a little
earlier, so this additional update is entirely superflous.

Signed-off-by: Christoph Hellwig <hch@lst.de>

diff --git a/drivers/block/umem.c b/drivers/block/umem.c
index 982732dbe82e6971aeb19e221a0910409fd73735..4c8320bfc46b5cc9a09a589fe6df1e4cdc969f05 100644 (file)
--- a/drivers/block/umem.c
+++ b/drivers/block/umem.c
@@ -746,21 +746,6 @@ static void del_battery_timer(void)
        del_timer(&battery_timer);
 }
 
-/*
- * Note no locks taken out here.  In a worst case scenario, we could drop
- * a chunk of system memory.  But that should never happen, since validation
- * happens at open or mount time, when locks are held.
- *
- *     That's crap, since doing that while some partitions are opened
- * or mounted will give you really nasty results.
- */
-static int mm_revalidate(struct gendisk *disk)
-{
-       struct cardinfo *card = disk->private_data;
-       set_capacity(disk, card->mm_size << 1);
-       return 0;
-}
-
 static int mm_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
        struct cardinfo *card = bdev->bd_disk->private_data;
@@ -781,7 +766,6 @@ static const struct block_device_operations mm_fops = {
        .owner          = THIS_MODULE,
        .submit_bio     = mm_submit_bio,
        .getgeo         = mm_getgeo,
-       .revalidate_disk = mm_revalidate,
 };
 
 static int mm_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)