Here's [1] the current block I/O code from the kernel, annotated with the authors who last touched each line. While I don't have time right now to actually go

Here's [1] the current block I/O code from the kernel, annotated with the authors who last touched each line. While I don't have time right now to actually go and count the number of distinct people involved, that's a lot of hands that have touched that source file over the years. And this view's only showing the changes that make up the current version of that file-- there are authors not credited there because their code has since been overwritten or edited by someone else. [1] https://github.com/torvalds/linux/blame/master/block/bio.c https://github.com/torvalds/linux/blame/master/block/bio.c