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powerpc/64s: Remove irq mask workaround in accumulate_stolen_time() 

The caller has been moved to C after irq soft-mask state has been
reconciled, and Linux IRQs have been marked as disabled, so this no
longer needs to play games with IRQ internals.

Fixes: 68b34588e2 ("powerpc/64/sycall: Implement syscall entry/exit logic in C")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210623022924.704645-1-npiggin@gmail.com
This commit is contained in:
Nicholas Piggin 2021-06-23 12:29:24 +10:00 committed by Michael Ellerman
parent 633c8e9800
commit 0cdff98b39
1 changed files with 0 additions and 11 deletions
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11
arch/powerpc/kernel/time.c
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@ -231,24 +231,13 @@ static u64 scan_dispatch_log(u64 stop_tb)
void notrace accumulate_stolen_time(void)
{
u64 sst, ust;
unsigned long save_irq_soft_mask = irq_soft_mask_return();
struct cpu_accounting_data *acct = &local_paca->accounting;
/* We are called early in the exception entry, before
* soft/hard_enabled are sync'ed to the expected state
* for the exception. We are hard disabled but the PACA
* needs to reflect that so various debug stuff doesn't
* complain
*/
irq_soft_mask_set(IRQS_DISABLED);
sst = scan_dispatch_log(acct->starttime_user);
ust = scan_dispatch_log(acct->starttime);
acct->stime -= sst;
acct->utime -= ust;
acct->steal_time += ust + sst;
irq_soft_mask_set(save_irq_soft_mask);
}
static inline u64 calculate_stolen_time(u64 stop_tb)