On Wed, Feb 24, 2021 at 09:44:54AM -0700, Jens Axboe wrote: > For the generic page cache read helper, use the better variant of checking > for the need to call filemap_write_and_wait_range() when doing O_DIRECT > reads. This avoids falling back to the slow path for IOCB_NOWAIT, if there > are no pages to wait for (or write out). > > Signed-off-by: Jens Axboe <axboe@xxxxxxxxx> Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
