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block: convert blkdev_issue_flush() to use empty barriers

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Then we can get rid of ->issue_flush_fn() and all the driver private
implementations of that.

Signed-off-by: Jens Axboe <[email protected]>
This commit is contained in:
Jens Axboe 2007-10-16 11:05:02 +02:00
commit fd5d806266
16 changed files with 36 additions and 329 deletions
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24
drivers/message/i2o/i2o_block.c
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@ -148,29 +148,6 @@ static int i2o_block_device_flush(struct i2o_device *dev)
return i2o_msg_post_wait(dev->iop, msg, 60);
};
/**
* i2o_block_issue_flush - device-flush interface for block-layer
* @queue: the request queue of the device which should be flushed
* @disk: gendisk
* @error_sector: error offset
*
* Helper function to provide flush functionality to block-layer.
*
* Returns 0 on success or negative error code on failure.
*/
static int i2o_block_issue_flush(struct request_queue * queue, struct gendisk *disk,
sector_t * error_sector)
{
struct i2o_block_device *i2o_blk_dev = queue->queuedata;
int rc = -ENODEV;
if (likely(i2o_blk_dev))
rc = i2o_block_device_flush(i2o_blk_dev->i2o_dev);
return rc;
}
/**
* i2o_block_device_mount - Mount (load) the media of device dev
* @dev: I2O device which should receive the mount request
@ -1009,7 +986,6 @@ static struct i2o_block_device *i2o_block_device_alloc(void)
}
blk_queue_prep_rq(queue, i2o_block_prep_req_fn);
blk_queue_issue_flush_fn(queue, i2o_block_issue_flush);
gd->major = I2O_MAJOR;
gd->queue = queue;