who created/coded ext4lazyinit for ext4? - linux

I have been trying to figure out who the author of ext4lazyinit ? I tried searching on lwn.net, didn't get anything. I tried using -
┌─[shirish#debian] - [/usr/share/doc/linux-image-4.9.0-1-amd64] - [10080]
└─[$] zless changelog.linux.gz
I tried searching for pattern inside the changelog but found no mention on it on the changelog even though the changelog.linux.gz goes all the way to 2005.
Can anybody share/explain where can I get more details please ?

Lukas Czerner - i used google.
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bfff68738f1cb5c93dab1114634cea02aae9e7ba

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I came across echofunc.vim today (from a link in SO). Since I'm rubbish at remembering the order of function parameters, it looked like a very useful tool for me.
But the documentation is a bit lean on installation! And I've not been able to find any supplementary resources on the internet.
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