On 5/4/22 11:28, Matthew Wilcox (Oracle) wrote:
> Shrinks shmem_add_to_page_cache() by 16 bytes. All the callers grow,
> but this is temporary as they will all be converted to folios soon.
>
> Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
> ---
> mm/shmem.c | 57 +++++++++++++++++++++++++++++-------------------------
> 1 file changed, 31 insertions(+), 26 deletions(-)
Hi Matthew,
Was building next-20220510 without CONFIG_TRANSPARENT_HUGEPAGE set and
saw this BUILD_BUG. Looks like it might be related to this patch/series.
./include/linux/vm_event_item.h:148:30: note: in expansion of macro ‘BUILD_BUG’
148 | #define THP_FILE_FALLBACK ({ BUILD_BUG(); 0; })
| ^~~~~~~~~
mm/shmem.c:721:48: note: in expansion of macro ‘THP_FILE_FALLBACK’
721 | count_vm_event(THP_FILE_FALLBACK);
| ^~~~~~~~~~~~~~~~~
--
Mike Kravetz
