Re: revert "config FS_JOURNAL_INFO"

[Hiroshi Shimamoto]

Alexey Dobriyan wrote:
> Can we please revert commit e4c570c4cb7a95dbfafa3d016d2739bf3fdfe319
> "task_struct: make journal_info conditional"

I'm fine to revert it, because it seems merged accidentally.

> 
> I think I gave a good enough arguments to not merge it.
> To iterate:
> * patch makes impossible to start using ext3 on EXT3_FS=n kernels
> without reboot.
> * this is done only for one pointer on task_struct

I don't think it's only one pointer.
There might be a lot of "only one pointer".

> 
> None of config options which define task_struct are tristate directly
> or effectively.

So we never allow to make memory usage small with providing an option
to remove unused area, right? Of cause, that option should be handled
carefully. If I want to reduce memory usage by this way, should I keep
this kind of patches out of tree?

thanks,
Hiroshi

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