[PATCH V3 09/13] selftests, powerpc: Add test for DSCR value inheritence across fork

Anshuman Khandual khandual at linux.vnet.ibm.com
Mon May 18 20:48:16 AEST 2015

On 05/18/2015 10:39 AM, Anton Blanchard wrote:
> Hi Anshuman,
> Thanks for getting these testcases into the kernel.
>> This patch adds a test to verify that the changed DSCR value inside
>> any process would be inherited to it's child process across the fork
>> system call.
> One issue I do notice (a bug in my original test cases too), is that we
> don't restore the DSCR on exit. I'm not sure we need to go to the
> trouble of saving and restoring it, but we should at least get it back
> to 0 when done.

Will save/restore the system DSCR default before exiting.

> Also a tiny nit, no need for a newline in perror():
> open() failed
> : Permission denied

sure, will remove them.

> With those changes you can add:
> Signed-off-by: Anton Blanchard <anton at samba.org>
> to the patches based on my testcases.


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