On Mon, Aug 02, 2021 at 03:11:14PM -0700, Darrick J. Wong wrote: > 6. Earlier, Eric Biggers had a patchset that made some iomap changes > ahead of porting f2fs to use directio. I /think/ those changes were > dropped in the latest submission because the intended use of those > changes (counters of the number of pages undergoing reads or writes, > iirc?) has been replaced with something simpler. IOWs, f2fs doesn't > need any iomap changes for 5.15, right? Converting f2fs to use iomap for direct I/O doesn't require any iomap changes. You might be referring to https://lkml.kernel.org/r/20210604210908.2105870-7-satyat@xxxxxxxxxx ("iomap: support direct I/O with fscrypt using blk-crypto"), which will be needed to support direct I/O on encrypted files. Direct I/O support on encrypted files will be a new feature, and it's being held up for other reasons. So there's nothing for you to do for 5.15. (And separately, using iomap for direct I/O in f2fs is being held up by existing f2fs direct I/O bugs.) - Eric
