* Tim Chen wrote:
> On 11/21/2018 12:14 PM, Thomas Gleixner wrote:
>
> > +* Avoid __switch_to_xtra() invocation when conditional stpib is
>
> s/stpib/stibp
and:
s/stibp/STIBP
to make it consistent throughout the patchset.
Thanks,
Ingo
* Tim Chen wrote:
> On 11/21/2018 12:14 PM, Thomas Gleixner wrote:
>
> > +* Avoid __switch_to_xtra() invocation when conditional stpib is
>
> s/stpib/stibp
and:
s/stibp/STIBP
to make it consistent throughout the patchset.
Thanks,
Ingo
On 11/21/2018 12:14 PM, Thomas Gleixner wrote:
> + * Avoid __switch_to_xtra() invocation when conditional stpib is
s/stpib/stibp
Tim
On 11/21/2018 12:14 PM, Thomas Gleixner wrote:
> + * Avoid __switch_to_xtra() invocation when conditional stpib is
s/stpib/stibp
Tim
The TIF_SPEC_IB bit does not need to be evaluated in the decision to invoke
__switch_to_xtra() when:
- CONFIG_SMP is disabled
- The conditional STIPB mode is disabled
The TIF_SPEC_IB bit still controls IBPB in both cases.
Optimize it out by masking the bit at compile time for CONFIG_SMP=n
The TIF_SPEC_IB bit does not need to be evaluated in the decision to invoke
__switch_to_xtra() when:
- CONFIG_SMP is disabled
- The conditional STIPB mode is disabled
The TIF_SPEC_IB bit still controls IBPB in both cases.
Optimize it out by masking the bit at compile time for CONFIG_SMP=n
6 matches
Mail list logo