On Wed, Dec 23, 2020 at 07:57:01AM -0800, Chang S. Bae wrote: > The perf has a buffer that is allocated on demand. The states saved in the
What's "the perf"? I hope to find out when I countinue reading... > buffer were named as 'dynamic' (supervisor) states but the buffer is not > updated in every context switch. > > The context switch buffer is in preparation to be dynamic for user states. > Make the wording to differentiate between those 'dynamic' states. > > Add a new variable -- xfeatures_mask_user_dynamic to indicate the dynamic > user states, and rename some define and helper as related to the dynamic > supervisor states: > xfeatures_mask_supervisor_dynamic() > XFEATURE_MASK_SUPERVISOR_DYNAMIC > > No functional change. Text needs cleaning up. > Signed-off-by: Chang S. Bae <[email protected]> > Reviewed-by: Len Brown <[email protected]> > Cc: [email protected] > Cc: [email protected] > --- > Changes from v2: > * Updated the changelog for clarification. > --- > arch/x86/include/asm/fpu/xstate.h | 12 +++++++----- > arch/x86/kernel/fpu/xstate.c | 29 +++++++++++++++++++---------- > 2 files changed, 26 insertions(+), 15 deletions(-) > > diff --git a/arch/x86/include/asm/fpu/xstate.h > b/arch/x86/include/asm/fpu/xstate.h > index 24bf8d3f559a..6ce8350672c2 100644 > --- a/arch/x86/include/asm/fpu/xstate.h > +++ b/arch/x86/include/asm/fpu/xstate.h > @@ -56,7 +56,7 @@ > * - Don't set the bit corresponding to the dynamic supervisor feature in > * IA32_XSS at run time, since it has been set at boot time. > */ > -#define XFEATURE_MASK_DYNAMIC (XFEATURE_MASK_LBR) > +#define XFEATURE_MASK_SUPERVISOR_DYNAMIC (XFEATURE_MASK_LBR) Is XFEATURE_MASK_USER_DYNAMIC coming too? -- Regards/Gruss, Boris. SUSE Software Solutions Germany GmbH, GF: Felix Imendörffer, HRB 36809, AG Nürnberg
