backing_dev_info cleanups & lifetime rule fixes V2

[Jens Axboe]

On 02/02/2015 01:06 AM, Christoph Hellwig wrote:
> On Sun, Feb 01, 2015 at 06:31:16AM +0000, Al Viro wrote:
>> And at that point we finally can make sb_lock and super_blocks static in
>> fs/super.c.  Do you want that in your tree, or would you rather have it
>> done via vfs.git during the merge window after your tree goes in?  It's
>> as trivial as this:
>>
>> Make super_blocks and sb_lock static
>>
>> The only user outside of fs/super.c is gone now
>>
>> Signed-off-by: Al Viro <viro at zeniv.linux.org.uk>
> 
> I'd say merge it through the block tree..
> 
> Acked-by: Christoph Hellwig <hch at lst.de>

Added to for-3.20/bdi


-- 
Jens Axboe