mm: add vma_desc_test_all() and use it erofs and zonefs are using vma_desc_test_any() twice to check whether all of VMA_SHARED_BIT and VMA_MAYWRITE_BIT are set, this is silly, so add vma_desc_test_all() to test all flags and update erofs and zonefs to use it. While we're here, update the helper function comments to be more consistent. Also add the same to the VMA test headers. Link: https://lkml.kernel.org/r/568c8f8d6a84ff64014f997517cba7a629f7eed6.1772704455.git.ljs@kernel.org Signed-off-by: Lorenzo Stoakes (Oracle) Reviewed-by: Vlastimil Babka (SUSE) Acked-by: David Hildenbrand (Arm) Reviewed-by: Pedro Falcato Cc: Arnd Bergmann Cc: Babu Moger Cc: Baolin Wang Cc: Chao Yu Cc: Chatre, Reinette Cc: Chunhai Guo Cc: Damien Le Maol Cc: Dan Williams Cc: Dave Jiang Cc: Dave Martin Cc: Gao Xiang Cc: Greg Kroah-Hartman Cc: Hongbo Li Cc: Hugh Dickins Cc: James Morse Cc: Jan Kara Cc: Jann Horn Cc: Jason Gunthorpe Cc: Jeffle Xu Cc: Johannes Thumshirn Cc: Konstantin Komarov Cc: Liam Howlett Cc: "Luck, Tony" Cc: Matthew Wilcox (Oracle) Cc: Michal Hocko Cc: Mike Rapoport Cc: Muchun Song Cc: Naohiro Aota Cc: Oscar Salvador Cc: Sandeep Dhavale Cc: Suren Baghdasaryan Cc: Vishal Verma Cc: Yue Hu Signed-off-by: Andrew Morton