On Thu, Jul 15, 2021 at 04:35:13AM +0100, Matthew Wilcox (Oracle) wrote: > Rename wait_on_page_bit() to folio_wait_bit(). We must always wait on > the folio, otherwise we won't be woken up due to the tail page hashing > to a different bucket from the head page. > > This commit shrinks the kernel by 770 bytes, mostly due to moving > the page waitqueue lookup into folio_wait_bit_common(). > > Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx> > Reviewed-by: Christoph Hellwig <hch@xxxxxx> > Acked-by: Jeff Layton <jlayton@xxxxxxxxxx> > Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> > Acked-by: Vlastimil Babka <vbabka@xxxxxxx> > Reviewed-by: William Kucharski <william.kucharski@xxxxxxxxxx> > Reviewed-by: David Howells <dhowells@xxxxxxxxxx> > --- > include/linux/pagemap.h | 10 +++--- > mm/filemap.c | 77 +++++++++++++++++++---------------------- > mm/page-writeback.c | 4 +-- > 3 files changed, 43 insertions(+), 48 deletions(-) Acked-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
