Porting punch hole to rhel 6.3

Hi All,

I have a request to port punch hole to rhel 6.3, so I am currently collecting a list of patches that I think I will need. I think I already have a good idea of what punch hole changes have occurred since the first punch hole set, but it looks like ext4_ext_map_blocks will also need porting too. I am not as familiar with the history of this function, so I am still going through patches looking for anything that have modified it. If any one has submitted a patch that you think needs to be included, let me know and I will add it to my list. Thx!

Allison Henderson