Commit daaedb82 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Jens Axboe
Browse files

mtd_blkdevs: don't override BLKFLSBUF 



BLKFLSBUF is not supposed to actually send a flush command to the device,
but to tear down buffer cache structures.  Remove the mtd_blkdevs
implementation and just use the default semantics instead.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Acked-by: default avatarRichard Weinberger <richard@nod.at>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 09162bc3

drivers/mtd/mtd_blkdevs.c

+0 −28
Original line number Diff line number Diff line
@@ -298,38 +298,10 @@ static int blktrans_getgeo(struct block_device *bdev, struct hd_geometry *geo) 
	return ret;

}



static int blktrans_ioctl(struct block_device *bdev, fmode_t mode,

			      unsigned int cmd, unsigned long arg)

{

	struct mtd_blktrans_dev *dev = blktrans_dev_get(bdev->bd_disk);

	int ret = -ENXIO;



	if (!dev)

		return ret;



	mutex_lock(&dev->lock);



	if (!dev->mtd)

		goto unlock;



	switch (cmd) {

	case BLKFLSBUF:

		ret = dev->tr->flush ? dev->tr->flush(dev) : 0;

		break;

	default:

		ret = -ENOTTY;

	}

unlock:

	mutex_unlock(&dev->lock);

	blktrans_dev_put(dev);

	return ret;

}



static const struct block_device_operations mtd_block_ops = {

	.owner		= THIS_MODULE,

	.open		= blktrans_open,

	.release	= blktrans_release,

	.ioctl		= blktrans_ioctl,

	.getgeo		= blktrans_getgeo,

};