On Fri, 24 Jan 2020 17:35:41 -0800 Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: > From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx> > > This series adds a readahead address_space operation to eventually > replace the readpages operation. The key difference is that > pages are added to the page cache as they are allocated (and > then looked up by the filesystem) instead of passing them on a > list to the readpages operation and having the filesystem add > them to the page cache. It's a net reduction in code for each > implementation, more efficient than walking a list, and solves > the direct-write vs buffered-read problem reported by yu kuai at > https://lore.kernel.org/linux-fsdevel/20200116063601.39201-1-yukuai3@xxxxxxxxxx/ Unclear which patch fixes this and how it did it?
