From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx> I don't like the 'apply' design pattern. It splits the logic between two functions, and from a performance point of view, it introduces an indirect function call which is more expensive due to Spectre. This rfc only converts one function over to use the new API as a demonstration. I don't want to waste time on it if people aren't interested in this approach. I haven't tested this at all; it's probably buggy. Matthew Wilcox (Oracle) (2): iomap: Add iomap_iter API iomap: Convert page_mkwrite to iter API fs/iomap/Makefile | 2 +- fs/iomap/buffered-io.c | 51 ++++++++++---------------- fs/iomap/iter.c | 81 ++++++++++++++++++++++++++++++++++++++++++ include/linux/iomap.h | 24 +++++++++++++ 4 files changed, 125 insertions(+), 33 deletions(-) create mode 100644 fs/iomap/iter.c -- 2.25.1
