AcoSail/kernel_optimize_test
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RISC-V: Use mmgrab()

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commit f1f1007644 ("mm: add new mmgrab() helper") added a
helper that we missed out on.

Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
This commit is contained in:
Palmer Dabbelt 2018-10-02 12:15:02 -07:00
parent 177fae4515
commit 46373cb442
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GPG Key ID: EF4CA1502CCBAB41
1 changed files with 2 additions and 1 deletions
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arch/riscv/kernel/smpboot.c
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@ -30,6 +30,7 @@
#include <linux/irq.h>
#include <linux/of.h>
#include <linux/sched/task_stack.h>
#include <linux/sched/mm.h>
#include <asm/irq.h>
#include <asm/mmu_context.h>
#include <asm/tlbflush.h>
@ -101,7 +102,7 @@ asmlinkage void __init smp_callin(void)
struct mm_struct *mm = &init_mm;
/* All kernel threads share the same mm context. */
atomic_inc(&mm->mm_count);
mmgrab(mm);
current->active_mm = mm;
trap_init();