Most of the folio flag-setting functions return void. folio_start_writeback is gratuitously different; the only two filesystems that do anything with the return value emit debug messages if it's already set, and we can (and should) do that internally without bothering the filesystem to do it. Matthew Wilcox (Oracle) (4): mm: Remove test_set_page_writeback() afs: Do not test the return value of folio_start_writeback() smb: Do not test the return value of folio_start_writeback() mm: Return void from folio_start_writeback() and related functions fs/afs/write.c | 6 ++--- fs/smb/client/file.c | 6 ++--- include/linux/page-flags.h | 9 ++----- mm/folio-compat.c | 4 +-- mm/page-writeback.c | 54 ++++++++++++++++++-------------------- 5 files changed, 33 insertions(+), 46 deletions(-) -- 2.42.0
