On Tue, Feb 07, 2023 at 03:37:06PM +1100, Stephen Rothwell wrote:
> Hi all,
>
> After merging the mm tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
>
> lib/iov_iter.c: In function 'iov_iter_extract_user_pages':
> lib/iov_iter.c:2143:34: error: 'FOLL_PIN' undeclared (first use in this function); did you mean 'POLL_IN'?
> 2143 | unsigned int gup_flags = FOLL_PIN;
> | ^~~~~~~~
> | POLL_IN
> lib/iov_iter.c:2143:34: note: each undeclared identifier is reported only once for each function it appears in
>
> Caused by commit
>
> 0ff325d28700 ("mm/gup: move private gup FOLL_ flags to internal.h")
>
> interacting with commit
>
> 895d773054a2 ("iov_iter: Add a function to extract a page list from an iterator")
>
> from the block tree.
>
> I have reverted commit 0ff325d28700 for today. A better resolution
> would be appreciated.
Just s/= FOLL_PIN/= 0/, it is unconditionally set internally when calling
pin_user_pages_fast()
David can you send a patch to the block tree to fix it?
Jason
