procfs: add KernelTainted() to parse /proc/sys/kernel/tainted#844
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procfs: add KernelTainted() to parse /proc/sys/kernel/tainted#844arunsrini3082 wants to merge 1 commit into
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Signed-off-by: Arun S <arun.srinivasan@flipkart.com>
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Add KernelTainted() method on FS that reads /proc/sys/kernel/tainted
and returns the raw taint value along with each known flag parsed into
a KernelTainted struct.
This is required by prometheus/node_exporter to implement a tainted
kernel collector, which was originally proposed in
prometheus/node_exporter#1567 but not merged
because parsing was expected to live in procfs first.
The struct exposes:
code), Description, and Set (whether currently active)
Reference: https://www.kernel.org/doc/html/latest/admin-guide/tainted-kernels.html