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powerpc: Replace current_thread_info()->task with current 

We have a few places that use current_thread_info()->task to access
current. This won't work with THREAD_INFO_IN_TASK so fix them now.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Split out of larger patch]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Christophe Leroy 2019-01-17 23:25:12 +11:00 committed by Michael Ellerman
parent 7306e83ccf
commit 05b98791ec
1 changed files with 3 additions and 3 deletions
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6
arch/powerpc/kernel/process.c
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@ -1231,8 +1231,8 @@ struct task_struct *__switch_to(struct task_struct *prev,
batch->active = 1;
}
if (current_thread_info()->task->thread.regs) {
restore_math(current_thread_info()->task->thread.regs);
if (current->thread.regs) {
restore_math(current->thread.regs);
/*
* The copy-paste buffer can only store into foreign real
@ -1242,7 +1242,7 @@ struct task_struct *__switch_to(struct task_struct *prev,
* mappings, we must issue a cp_abort to clear any state and
* prevent snooping, corruption or a covert channel.
*/
if (current_thread_info()->task->thread.used_vas)
if (current->thread.used_vas)
asm volatile(PPC_CP_ABORT);
}
#endif /* CONFIG_PPC_BOOK3S_64 */