I'm trying to determine exactly when the external memory gets accessed (whether its internal flash or an SD card I don't care). I am using a Galaxy Nexus. I have successfully built a kernel module with kprobes monitoring do_fork() children lifespan times and verified it with an adb dmesg, which wasn't trivial. But I'm having trouble finding the kernel routine that solely accesses external memory, or has a parameter depicting access to external memory. Any suggestions?
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