[PATCH v3 03/21] powerpc: Add check_if_tm_restore_required() to giveup_all()
Michael Neuling
mikey at neuling.org
Fri Aug 19 16:40:15 AEST 2016
On Wed, 2016-08-17 at 13:43 +1000, Cyril Bur wrote:
> giveup_all() causes FPU/VMX/VSX facilitities to be disabled in a
facilities.
> threads MSR. If this thread was transactional this should be recorded
> as reclaiming/recheckpointing code will need to know.
Can you expand on this? It's not clear to me how this relates to the code.
Mikey
> Fixes: c208505 ("powerpc: create giveup_all()")
> Signed-off-by: Cyril Bur <cyrilbur at gmail.com>
> ---
> arch/powerpc/kernel/process.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/kernel/process.c
> b/arch/powerpc/kernel/process.c
> index cdf2d20..82308fd 100644
> --- a/arch/powerpc/kernel/process.c
> +++ b/arch/powerpc/kernel/process.c
> @@ -445,6 +445,7 @@ void giveup_all(struct task_struct *tsk)
> return;
>
> msr_check_and_set(msr_all_available);
> + check_if_tm_restore_required(tsk);
>
> #ifdef CONFIG_PPC_FPU
> if (usermsr & MSR_FP)
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