Re: [PATCH] f2fs: introduce on-disk layout version checking functionality

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On Mon, May 23, 2016 at 02:13:57PM -0700, Jaegeuk Kim wrote:
> As Christoph mentioned, how about checking the feature only like this?
> 
> 1. if the feature is ON,
>  - go 64 bits   , when compiled w/  F2FS_MIN_16TB_VOLUME_SUPPORT
>  - fail to mount, when compiled w/o F2FS_MIN_16TB_VOLUME_SUPPORT
> 
> 2. if the feature is OFF,
>  - fail to mount, when compiled w/  F2FS_MIN_16TB_VOLUME_SUPPORT
>  - go 32 bits   , when compiled w/o F2FS_MIN_16TB_VOLUME_SUPPORT
> 
> Thoughts?

That goes on to the next question: why do we even need a config option
for 16TB+ volume support?

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