loop: fix bad bio_alloc() nr_iovec request
Don't allocate room for an iovec when it is not needed. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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@ -610,7 +610,7 @@ static int loop_thread(void *data)
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static int loop_switch(struct loop_device *lo, struct file *file)
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{
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struct switch_request w;
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struct bio *bio = bio_alloc(GFP_KERNEL, 1);
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struct bio *bio = bio_alloc(GFP_KERNEL, 0);
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if (!bio)
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return -ENOMEM;
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init_completion(&w.wait);
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