On Wed, 11 Jun 2014 11:58:02 +0530, Prudhvee Narasimha Sadha said: > I just want to know what I should learn and any suggested books to > learn kernel programming. Learn C. Learn C *really* well. Especially the way the Linux kernel implements object-oriented concepts using callbacks through structures of function pointers (struct file_ops, etc...) Learn about race conditions and locking. Come to grips with the fact that the Linux kernel of 2014 isn't the kernel from 2004 - most of the code has already been looked over by lots of professional programmers, and a lot of the low-hanging fruit has been cleared out already. So be prepared to accept that these days, not everybody can be a productive kernel hacker. However, Greg KH is *always* willing to accept any coding love you want to give to anything in drivers/staging :) Two very helpful book, even though they are *not* about Linux: Maurice Bach - The Design of the Unix Operating System McKusick - The Design and Implementation of the FreeBSD Operating System Why? It's useful to understand different solutions for how to represent things like processes, files, and devices. And both books are an excellent way to learn about locking in the context of OS design, as they spend a *lot* of time on "We need to lock this data structure from this point in time until this other thing finishes, because otherwise something else could run here and do this other perfectly reasonable thing at just the wrong time, which would unfortunately end up turning your entire filesystem into a steaming pile of dingo kidneys because such-and-such will get trashed..." And if you're bored, Elliot Organick's "The Multics System: An Examination of its Structure" (ISBN 0-262-15012-3) has insights to be understood, 40 years after it came out....
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