Messages in this thread | | | Date | Tue, 15 Mar 2016 08:37:44 -0700 | From | Christoph Hellwig <> | Subject | Re: Page migration issue with UBIFS |
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On Tue, Mar 15, 2016 at 04:32:40PM +0100, Richard Weinberger wrote: > > Or if ->page_mkwrite() was called, why the page is not dirty? > > BTW: UBIFS does not implement ->migratepage(), could this be a problem?
This might be the reason. I can't reall make sense of buffer_migrate_page, but it seems to migrate buffer_head state to the new page.
I'd love to know why CMA even tries to migrate pages that don't have a ->migratepage method, this seems incredibly dangerous to me.
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