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blkfront: Remove obsolete info->users

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This is just bd_openers, protected by the bd_mutex.

Signed-off-by: Daniel Stodden <daniel.stodden@citrix.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
This commit is contained in:
Daniel Stodden
2010-08-07 18:47:26 +02:00
committed by Jens Axboe
parent fa1bd3591a
commit acfca3c622
1 changed files with 3 additions and 6 deletions
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9
drivers/block/xen-blkfront.c
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@@ -1168,9 +1168,6 @@ static int blkif_open(struct block_device *bdev, fmode_t mode)
mutex_unlock(&info->mutex); mutex_unlock(&info->mutex);
if (!err)
++info->users;
out: out:
unlock_kernel(); unlock_kernel();
return err; return err;
@@ -1183,12 +1180,13 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
struct xenbus_device *xbdev; struct xenbus_device *xbdev;
lock_kernel(); lock_kernel();
if (--info->users)
goto out;
bdev = bdget_disk(disk, 0); bdev = bdget_disk(disk, 0);
bdput(bdev); bdput(bdev);
if (bdev->bd_openers)
goto out;
/* /*
* Check if we have been instructed to close. We will have * Check if we have been instructed to close. We will have
* deferred this request, because the bdev was still open. * deferred this request, because the bdev was still open.
@@ -1212,7 +1210,6 @@ static int blkif_release(struct gendisk *disk, fmode_t mode)
kfree(info); kfree(info);
} }
out:
unlock_kernel(); unlock_kernel();
return 0; return 0;
} }