On Tue, Jan 16, 2018 at 09:31:58AM +0200, Nikolay Borisov wrote:
> delayed_iput_count wa supposed to be used to implement, well, delayed
> iput. The idea is that we keep accumulating the number of iputs we do
> until eventually the inode is deleted. Turns out we never really
> switched the delayed_iput_count from 0 to 1, hence all conditional
> code relying on the value of that member being different than 0 was
> never executed. This, as it turns out, didn't cause any problem due
> to the simple fact that the generic inode's i_count member was always
> used to count the number of iputs. So let's just remove the unused
> member and all unused code. This patch essentially provides no
> functional changes. While at it, also add proper documentation for 
> btrfs_add_delayed_iput 
> Signed-off-by: Nikolay Borisov <nbori...@suse.com>

Reviewed-by: David Sterba <dste...@suse.com>
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