Re: [PATCH] mm/filemap: Make folio_put_wait_locked static

[Ke Sun]

On 2022/9/15 15:30, Matthew Wilcox wrote:
> On Thu, Sep 15, 2022 at 08:45:33AM +0800, Ke Sun wrote:
> > Ping.
> Don't be rude.  I'm at a conference this week and on holiday next week.
> This is hardly an urgent patch.
So sorry to bother you. Some duplicate emails were sent due to issues 
with mailbox app settings.
> > On 2022/9/14 09:58, Ke Sun wrote:
> > > It's only used in mm/filemap.c, since commit <ffa65753c431>
> > > ("mm/migrate.c: rework migration_entry_wait() to not take a pageref").
> > >
> > > Make it static.
> > >
> > > Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> > > Cc: linux-mm@xxxxxxxxx
> > > Cc: linux-kernel@xxxxxxxxxxxxxxx
> > > Reported-by: k2ci <kernel-bot@xxxxxxxxxx>
> > > Signed-off-by: Ke Sun <sunke@xxxxxxxxxx>
> > > ---
> > > include/linux/pagemap.h | 1 -
> > > mm/filemap.c | 2 +-
> > > 2 files changed, 1 insertion(+), 2 deletions(-)
> > >
> > > diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
> > > index 0178b2040ea3..82880993dd1a 100644
> > > --- a/include/linux/pagemap.h
> > > +++ b/include/linux/pagemap.h
> > > @@ -1042,7 +1042,6 @@ static inline int
> > > wait_on_page_locked_killable(struct page *page)
> > > return folio_wait_locked_killable(page_folio(page));
> > > }
> > > -int folio_put_wait_locked(struct folio *folio, int state);
> > > void wait_on_page_writeback(struct page *page);
> > > void folio_wait_writeback(struct folio *folio);
> > > int folio_wait_writeback_killable(struct folio *folio);
> > > diff --git a/mm/filemap.c b/mm/filemap.c
> > > index 15800334147b..ade9b7bfe7fc 100644
> > > --- a/mm/filemap.c
> > > +++ b/mm/filemap.c
> > > @@ -1467,7 +1467,7 @@ EXPORT_SYMBOL(folio_wait_bit_killable);
> > > *
> > > * Return: 0 if the folio was unlocked or -EINTR if interrupted by a
> > > signal.
> > > */
> > > -int folio_put_wait_locked(struct folio *folio, int state)
> > > +static int folio_put_wait_locked(struct folio *folio, int state)
> > > {
> > > return folio_wait_bit_common(folio, PG_locked, state, DROP);
> > > }