Hi - I have taken minor project on Btrfs file system as my independent
study and trying to understand data/metadata allocation algorithm used
in Btrfs file system. I would like to know how can I use Btrfs
Tracepoints and Ftrace to debug. I was trying to find documents on web
but wasn't able to find any document which can guide me through step by
step process on using Btrfs Tracepoints or Ftrace on Btrfs.
All the study so far is happening on a laptop with virtual box Ubuntu. I
have downloaded latest kernel and trying to understand the flow by
putting printk statements and compiling that module. In this setup - if
you can guide me through the process of setting up tracepoints or Ftrace
- that will really help me. Also, if you have any other suggestions on
understanding allocation algorithms for data/metadata - I am open to
learn.
Best Regards,
Yash
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