Hello all,

I want to track the read/write operations for a particular inode at the vfs
layer.
I added the following structure as a field to struct inode.
struct meta_info
{
 unsigned int read_count;
 unsigned int write_count;
};

This caused a problem in mounting the root device , what could be the cause
?
Am i allowed modify the struct inode by adding a new field ?

Also, i would like to know if there are any existing mechanisms that can
help me track the workload .
at various levels
Thanks,
sanoj

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