A question about priority search tree in kernel 2.6.24

[Greg KH]

On Sat, Feb 11, 2017 at 11:42:39PM +0800, Hao Lee wrote:
> Hi, all
> 
> Recently I'm reading "Professional Linux Kernel Architecture" while referencing
> the source code of kernel 2.6.24 and I have a question about priority search
> tree.

2.6.24 is _very_ very very old, and obsolete and insecure.  Never use it
for anything.  Including trying to understand code, if you just want to
read stuff, please start with 4.9 at the oldest.

good luck!

greg k-h