On Thu, Jul 15, 2021 at 04:35:17AM +0100, Matthew Wilcox (Oracle) wrote:

Match the page writeback functions by adding
folio_start_fscache(), folio_end_fscache(), folio_wait_fscache() and
folio_wait_fscache_killable().  Remove set_page_private_2().  Also rewrite
the kernel-doc to describe when to use the function rather than what the
function does, and include the kernel-doc in the appropriate rst file.
Saves 31 bytes of text in netfs_rreq_unlock() due to set_page_fscache()
calling page_folio() once instead of three times.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Acked-by: Vlastimil Babka <redacted>
Reviewed-by: William Kucharski <redacted>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Kirill A. Shutemov <redacted>
---
 Documentation/filesystems/netfs_library.rst |  2 +
 include/linux/netfs.h                       | 75 +++++++++++++--------
 include/linux/pagemap.h                     | 16 -----
 3 files changed, 50 insertions(+), 43 deletions(-)

Acked-by: Mike Rapoport <redacted>