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blkfront: Remove obsolete info->users
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>
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1 changed files with 2 additions and 8 deletions
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@ -96,12 +96,6 @@ struct blkfront_info
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unsigned long shadow_free;
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int feature_barrier;
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int is_ready;
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/**
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* The number of people holding this device open. We won't allow a
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* hot-unplug unless this is 0.
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*/
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int users;
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};
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static DEFINE_SPINLOCK(blkif_io_lock);
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@ -977,7 +971,7 @@ blkfront_closing(struct blkfront_info *info)
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mutex_lock(&bdev->bd_mutex);
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if (info->users) {
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if (bdev->bd_openers) {
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xenbus_dev_error(xbdev, -EBUSY,
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"Device in use; refusing to close");
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xenbus_switch_state(xbdev, XenbusStateClosing);
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@ -1126,7 +1120,7 @@ static int blkfront_remove(struct xenbus_device *xbdev)
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mutex_lock(&bdev->bd_mutex);
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info = disk->private_data;
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if (info && !info->users) {
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if (info && !bdev->bd_openers) {
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xlvbd_release_gendisk(info);
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disk->private_data = NULL;
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kfree(info);
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