[PATCH] get rid of struct file use in blkdev_ioctl() BLKBSZSET
We need to do bd_claim() only if file hadn't been opened with O_EXCL and then we have no need to use file itself as owner. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>hifive-unleashed-5.1
parent
45048d0961
commit
6af3a56e1d
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@ -343,10 +343,11 @@ int blkdev_ioctl(struct inode *inode, struct file *file, unsigned cmd,
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return -EINVAL;
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return -EINVAL;
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if (get_user(n, (int __user *) arg))
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if (get_user(n, (int __user *) arg))
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return -EFAULT;
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return -EFAULT;
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if (bd_claim(bdev, file) < 0)
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if (!(mode & FMODE_EXCL) && bd_claim(bdev, &bdev) < 0)
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return -EBUSY;
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return -EBUSY;
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ret = set_blocksize(bdev, n);
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ret = set_blocksize(bdev, n);
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bd_release(bdev);
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if (!(mode & FMODE_EXCL))
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bd_release(bdev);
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return ret;
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return ret;
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case BLKPG:
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case BLKPG:
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lock_kernel();
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lock_kernel();
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