Re: [PATCH] fix page_count in ->iomap_migrate_page()

[Richard Weinberger <richard@xxxxxx>]

Am Samstag, 15. Dezember 2018, 11:51:12 CET schrieb Christoph Hellwig:
> FYI, for iomap we got a patch to just increment the page count when
> setting the private data, and it finally got merged into mainline after
> a while.
> 
> Not that it totally makes sense to me, but it is what it is.  It would
> just be nice if set_page_private took care of it and we had a
> clear_page_private to undo it, making the whole scheme at lot more
> obvious.

Yeah, UBIFS will go the same route. I have already a patch prepared
which increments the page count when UBIFS sets PG_private.

Thanks,
//richard