Regarding enumerating Block devices registered in kernel mode

Richard Weinberger richard at
Tue Nov 12 03:50:47 EST 2013

Am 12.11.2013 09:47, schrieb vaibhav:
> Thanks for replying Richard,
> I need to access the blockdevice structure associated with each block device
> so that I can patch its block_device_operations to receive ioctls calls in
> my code. In my code I check for ioctls that I handle and pass it to the
> original ioctl handler if the ioctl is not understood by me.  
> I intend to patch these block_device structures during my module
> initialization hence I need to iterate all BD's available in the system at
> that point. Also need to keep track of new BD's appearing in the system so
> that I can patch them as soon as they are available.

Please don't do that.
Such patching/hooking/etc...-games are doomed to failure.


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