[v2] powerpc: make /proc/self/stack always print the current stack

[Michael Ellerman]

On Mon, 2017-03-27 at 19:32:33 UTC, Thadeu Lima de Souza Cascardo wrote:
> For the current task, the kernel stack would only tell the last time the
> process was rescheduled, if ever. Use the current stack pointer for the
> current task.
> 
> Otherwise, every once in a while, the stacktrace printed when reading
> /proc/self/stack would look like the process is running in userspace,
> while it's not, which some may consider as a bug.
> 
> This is also consistent with some other architectures, like x86 and arm,
> at least.
> 
> Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo at canonical.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/4f9b514b765a3057341f3236c94877

cheers