Hello, These are RFC patches to get community view on converting ext4 bmap & fiemap to iomap infrastructure. This reduces the users of ext4_get_block API and thus a step towards getting rid of buffer_heads from ext4. Also reduces the line of code by making use of iomap infrastructure (ex4_iomap_begin) which is already used for other operations. This gets rid of special implementation of ext4_fill_fiemap_extents & ext4_find_delayed_extent and thus only relies upon ext4_map_blocks & iomap_fiemap (ext4_iomap_begin) for mapping. It looked more logical thing to do, but I appreciate if anyone has any review/feedback comments about this part. Didn't get any regression on some basic xfstests in tests/ext4/ with mkfs option of "-b 4096". Please let me know if I should also test any special configurations? Patches can be cleanly applied over Linux 5.3-rc5. Ritesh Harjani (2): ext4: Move ext4 bmap to use iomap infrastructure. ext4: Move ext4_fiemap to iomap infrastructure fs/ext4/extents.c | 294 +++++++--------------------------------------- fs/ext4/inline.c | 41 ------- fs/ext4/inode.c | 17 ++- 3 files changed, 53 insertions(+), 299 deletions(-) -- 2.21.0
