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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2019-01-17 23:26:56 +1100 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-02-23 22:31:40 +1100 |
| commit | 678c668a7732f3a11c25ae86d5737a019667e3c5 (patch) | |
| tree | 8823d4212bd12570da423c8b131633f76a62415d /arch/powerpc/kernel | |
| parent | powerpc: Update comments in preparation for THREAD_INFO_IN_TASK (diff) | |
| download | linux-dev-678c668a7732f3a11c25ae86d5737a019667e3c5.tar.xz linux-dev-678c668a7732f3a11c25ae86d5737a019667e3c5.zip | |
powerpc/64: Use task_stack_page() to initialise paca->kstack
Rather than using the thread info use task_stack_page() to initialise
paca->kstack, that way it will work with THREAD_INFO_IN_TASK.
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>
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/smp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 5366d9e7bed4..829ef5411b50 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -20,6 +20,7 @@ #include <linux/kernel.h> #include <linux/export.h> #include <linux/sched/mm.h> +#include <linux/sched/task_stack.h> #include <linux/sched/topology.h> #include <linux/smp.h> #include <linux/interrupt.h> @@ -984,7 +985,8 @@ static void cpu_idle_thread_init(unsigned int cpu, struct task_struct *idle) #ifdef CONFIG_PPC64 paca_ptrs[cpu]->__current = idle; - paca_ptrs[cpu]->kstack = (unsigned long)ti + THREAD_SIZE - STACK_FRAME_OVERHEAD; + paca_ptrs[cpu]->kstack = (unsigned long)task_stack_page(idle) + + THREAD_SIZE - STACK_FRAME_OVERHEAD; #endif ti->cpu = cpu; secondary_ti = current_set[cpu] = ti; |