On 04/24/2015 10:31 AM, Anshuman Khandual wrote:

On 04/20/2015 01:45 PM, Anshuman Khandual wrote:

quoted

Currently tm_orig_msr is getting used during process context switch only.
Then there is ckpt_regs which saves the checkpointed userspace context
The MSR slot contained in ckpt_regs structure can be used during process
context switch instead of tm_orig_msr, thus allowing us to drop it from
thread_struct structure. This patch does that change.

Signed-off-by: Anshuman Khandual <redacted>
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This issue came up in the discussion regarding ptrace interface for TM
specific registers https://lkml.org/lkml/2015/4/20/100, so just wanted
to give this a try. The basic TM tests still pass after this change.

Hey Michael/Mikey,

Whats your thoughts on this ? Can we drop tm_orig_msr ?

Just wanted some inputs/suggestions/thoughts on this idea. Did not hear
from any one on this. Will it create any problem any where if we drop
this variable.