On Mon, May 27, 2024 at 07:17:18PM +0100, Matthew Wilcox wrote: > Could you remind me why we need to call flush_dcache_folio() in > generic_perform_write() while we don't in iomap_write_iter()? > > - copied = copy_page_from_iter_atomic(page, offset, bytes, i); > > - flush_dcache_page(page); > > + copied = copy_folio_from_iter_atomic(folio, offset, bytes, i); > > + flush_dcache_folio(folio); > > (this one has no equivalent in iomap) The iomap equivalent is in __iomap_write_end and iomap_write_end_inline and block_write_end.
