Re: [RFC/PATCH 1/5] bdev: execute in place (V2)

[Carsten Otte]

Christoph Hellwig wrote:

>>+	int (*direct_access) (struct inode *, sector_t, unsigned long *);
>>    
>>
>
>this should have a block_device * first argument.
>  
>
While I agree that (block_device *) would be a good thing to address
the target block device, the inode *  is consistent with other
operations in this vector: open, release, & ioctl use the same scheme.
The reason for inode * here is that the caller has no easy way to get
to the block_device *. How would the filesystem do that?
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