On Thu, 08 Feb 2018 23:38:01 +0530, Neil Thomas said: > I am just a beginner. I have tried procfs, Netlink socket to communicate > between user space and kernel space and it works fine. > > I am developing a monitoring utility to trace the VFS operation and find > the frequency of VFS function calls. This monitoring utility runs in kernel > space. We have to record the occurrence of each VFS function calls (like > vfs_open(), vfs_read()). I don't know which is best mechanism to report > this VFS event to the monitoring utility. > > Could anyone please suggest the best mechanism to transfer data frequently > between kernel modules. There's a perfectly good perf-based function trace facility that will provide this info to userspace. http://www.brendangregg.com/perf.html#StaticKernelTracing
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