On Thu, Jun 29, 2017 at 3:54 PM, Christoph Hellwig <hch@xxxxxx> wrote: > Switch to the iomap_seek_hole and iomap_seek_data helpers for > implementing lseek SEEK_HOLE / SEEK_DATA, and remove all the > code that isn't needed any more. > > Note that with this patch ext4 will now always depend on the iomap > code instead of only when CONFIG_DAX is enabled, and it requires > adding a call into the extent status tree for iomap_begin as well > to properly deal with delalloc extents. This breaks SEEK_HOLE / SEEK_DATA on filesystems with the inline_data feature. Also, ext4 no longer calls inode_lock or inode_lock_shared; that needs to be added back for consistency between reading i_size and walking the file extents. Thanks, Andreas
