"And given the amount of material left to cover, we'll spend
this week finishing off the issues related to the simpler,
non-sequence proc files, and leave the complicated topic of
sequenced writes for a final Part 3 next week, so this will be a
relatively short column.
"A Quick Recap
As a refresher, let's consider a simple loadable module that
represents a solution to last week's exercise and creates the proc
file /proc/hz that, when read, displays the kernel tick rate (a
value that shouldn't change no matter how many times you display
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