Re: page->index limitation on 32bit system?

[Qu Wenruo <quwenruo.btrfs@gmx.com>]

On 2021/2/20 上午1:51, Matthew Wilcox wrote:
> On Fri, Feb 19, 2021 at 02:22:01PM +0000, Matthew Wilcox wrote:
>> In the last decade, nobody's tried to fix it in mainline that I know of.
>> As I said, some vendors have tried to fix it in their NAS products,
>> but I don't know where to find that patch any more.
>
> Arnd found it for me.
>
> https://sourceforge.net/projects/dsgpl/files/Synology%20NAS%20GPL%20Source/25426branch/alpine-source/linux-3.10.x-bsp.txz/download
>
> They've done a perfect job of making the source available while making it
> utterly dreadful to extract anything useful from.
>
>   16084 files changed, 1322769 insertions(+), 285257 deletions(-)

Wow, I thought RedHat was the only open-source vendor that tries to send
out a super big patch to make life of every other guys miserable.
And I'm definitely wrong now.

>
> It's full of gratuitous whitespace changes to files that definitely
> aren't used (arch/alpha?  really?) and they've stripped out a lot of
> comments that they didn't need to touch.
>
> Forward porting a patch from 10 years ago wouldn't be easy, even if
> they hadn't tried very hard to obfuscate their patch.  I don't think
> this will be a fruitful line of inquiry.
>
Yeah, I believe it's not worthy now.

I'll make btrfs to try its best to reject the fs instead.

Thanks,
Qu