From mboxrd@z Thu Jan  1 00:00:00 1970
From: rcpilot2010@gmail.com (Abu Rasheda)
Date: Fri, 8 Jun 2012 18:52:45 -0700
Subject: Module vs Kernel main performacne
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I modified my module (m.c). Still sending buffer from user space using
ioctl, but instead of copying data from buffer provided by user, I have
allocated (kmalloc) a buffer and I copy from this buffer to another kernel
buffer which is allocated each time this module ioclt is invoked.

copy_from_user is now replaced with memcpy. I still see processor stall.
This means the buffer allocated per call is the cause.

Abu
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