It checks whether exception happened in user mode or supervisor mode
On Jun 20, 2012 5:15 PM, "sumeet linux" [off-list ref] wrote:

Hi All,

What is the meaning of user_mode(regs) macro ?  What does it do ?
This macro used in many files in kernel like signal.c, trap.c, process.c
files.
From the code it looks like it checks is in USER mode or KERNEL mode, but
still not clear on usage and implementation of this macro.

Thanks.

Regard,
Sumeet

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